{"product_id":"2pcs-heltec-v4-lora32-esp32-s3-sx1262-lorawan-868mhz-development-board-with-0-96-inch-oled-wifi-ble-mesh-network-for-iot-1","title":"2PCS Heltec V4 LoRa32 ESP32-S3 SX1262 LoRaWAN 868MHz Development Board With 0.96 Inch OLED WiFi \u0026 BLE Mesh Network for IoT","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBattery Included\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eno\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eBluetooth\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eBluetooth LE, Bluetooth 5, Bluetooth mesh\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMeshzeno\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eChoice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eDimensions\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e51.7 * 25.4* 10.7mm\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eFrequency\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e433~510 MHz, 863~928 MHz\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003enone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eLoRa Chip\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eSX-1262\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eMaster Chip\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eESP32-S3R2\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eMax. Receiving Sensitivity\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e-137 dBm\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eMax. TX Power\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e21±1dBm, 27±1 dBm\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eModel Number\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eLoRa 32 V4\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOLED\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eSSD1315(0.96Inch, 128*64 resolution)\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOperating Temperature\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e-40~85℃(OLED operating temperature: -40~ 70°C)\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003ePower Supply\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e5V@USB, 3.3-4.2V@Battery\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eTypical Application Fields\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eInternet of Things (IoT)\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eWi-Fi\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e802.11 b\/g\/n, up to 150Mbps\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003esemi_Choice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cp\u003e\u003cimg width=\"944\" height=\"NaN\" src=\"https:\/\/ae01.alicdn.com\/kf\/Se549fe43417e4065a98ee094e341424bh.png\" slate-data-type=\"image\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cp\u003e\u003cspan style=\"background-color:rgb(201, 245, 209);color:rgb(33, 33, 33);font-size:22px;font-family:Roboto, sans-serif\"\u003eNote： Version 4.3\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"font-family:Roboto, sans-serif;font-size:16px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(33, 33, 33);background-color:rgb(255, 255, 255);margin:0px 0px 10px;margin-bottom:10px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\" align=\"start\"\u003e\u003cstrong\u003ePlease ensure your board enters Bootloader mode before flashing. Here’s how\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cp style=\"font-family:Roboto, sans-serif;font-size:16px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(33, 33, 33);background-color:rgb(255, 255, 255);margin:0px 0px 10px;margin-bottom:10px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\" align=\"start\"\u003eConnect the USB-C cable, then hold down the PRG button, press the RST button once, and release the PRG button. After that, flash the firmware. Once the flashing is complete, remember to restart the device.\u003c\/p\u003e\n\u003cp style=\"font-family:Roboto, sans-serif;font-size:16px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(33, 33, 33);background-color:rgb(255, 255, 255);margin:0px 0px 10px;margin-bottom:10px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\" align=\"start\"\u003e\u003cspan style=\"font-size:18px;font-family:arial, helvetica, sans-serif\"\u003e\u003cstrong\u003e\u003cbr\u003eHardware version 4.3\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"font-size:18px;font-family:arial, helvetica, sans-serif\"\u003e requires new firmware.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul style=\"font-family:Roboto, sans-serif;font-size:16px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(33, 33, 33);background-color:rgb(255, 255, 255);margin:0px 0px 10px 20px;margin-bottom:10px;margin-top:0px;margin-left:20px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;list-style:disc;box-sizing:border-box\" align=\"start\"\u003e\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp\u003e\u003cspan style=\"font-size:18px;font-family:arial, helvetica, sans-serif\"\u003eIf you are using \u003c\/span\u003e\u003cspan style=\"font-size:18px;font-family:arial, helvetica, sans-serif\"\u003e\u003cstrong\u003eHeltec’s development framework\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"font-size:18px;font-family:arial, helvetica, sans-serif\"\u003e, please update the board package and LoRa library to the latest via GitHub.\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003cdiv style=\"font-family:Roboto, sans-serif;font-size:16px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(33, 33, 33);background-color:rgb(255, 255, 255);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\" class=\"ds-message _63c77b1\" align=\"start\"\u003e\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\" class=\"ds-markdown\"\u003e\u003cul style=\"margin:0px 0px 0px 20px;margin-bottom:0px;margin-top:0px;margin-left:20px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;list-style:disc;box-sizing:border-box\"\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\" class=\"ds-markdown-paragraph\"\u003e\u003cp\u003e\u003cspan style=\"font-size:18px;font-family:arial, helvetica, sans-serif\"\u003e\u003cstrong\u003eMeshtastic\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"font-size:18px;font-family:arial, helvetica, sans-serif\"\u003e, please use firmware version 2.7.20 or above. \u003c\/span\u003e\u003cspan style=\"font-size:18px;font-family:arial, helvetica, sans-serif\"\u003e\u003cstrong\u003ePlease note: “Meshtastic UI” is for use with the touchscreen. For ordinary OLED screens, please do not select it.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\" class=\"ds-markdown-paragraph\"\u003e\u003cp\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cstrong\u003eMeshCore\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"font-size:18px\"\u003e, please use firmware version 1.15.0 or above.\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp style=\"text-align:center\" align=\"center\"\u003e\u003cspan style='font-size:32px;font-family:\"comic sans ms\", cursive'\u003eSpecifications\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv align=\"center\"\u003e\u003ctable style=\"border-collapse:collapse;width:600pt\" border=\"0\" cellspacing=\"0\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:rgb(43, 150, 146);padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:center;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"center\"\u003e\u003cstrong\u003e\u003cspan style=\"color:rgb(255, 255, 255);font-size:13.5pt;font-family:sans-serif\"\u003eParameters\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"background-color:rgb(43, 150, 146);padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:center;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"center\"\u003e\u003cstrong\u003e\u003cspan style=\"color:rgb(255, 255, 255);font-size:13.5pt;font-family:sans-serif\"\u003eDescription\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(33, 33, 33);font-size:10.5pt;font-family:sans-serif\"\u003eMCU\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(33, 33, 33);font-size:10.5pt;font-family:sans-serif\"\u003eESP32-S3R2 (Xtensa®32-bit lx7 dual core processor)\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:rgb(211, 241, 240);padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(51, 51, 51);font-size:10.5pt;font-family:sans-serif\"\u003eLoRa Chip\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"background-color:rgb(211, 241, 240);padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(51, 51, 51);font-size:10.5pt;font-family:sans-serif\"\u003eSX1262\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(33, 33, 33);font-size:10.5pt;font-family:sans-serif\"\u003eFrequency\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(33, 33, 33);font-size:10.5pt;font-family:sans-serif\"\u003eHigh-power version: 863-928MHz\u003cbr\u003eLow-power version: 433, 470-510, 863-928MHz\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:rgb(211, 241, 240);padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(51, 51, 51);font-size:10.5pt;font-family:sans-serif\"\u003eMax. TX Power\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"background-color:rgb(211, 241, 240);padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(51, 51, 51);font-size:10.5pt;font-family:sans-serif\"\u003eHigh-power version: 28 ±1 dBm\u003cbr\u003eLow-power version: 21 ±1 dBm\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(33, 33, 33);font-size:10.5pt;font-family:sans-serif\"\u003eMax. Receiving sensitivity\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(33, 33, 33);font-size:10.5pt;font-family:sans-serif\"\u003e-137dBm@SF12 BW=125KHz\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:rgb(211, 241, 240);padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(51, 51, 51);font-size:10.5pt;font-family:sans-serif\"\u003eWi-Fi\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"background-color:rgb(211, 241, 240);padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(51, 51, 51);font-size:10.5pt;font-family:sans-serif\"\u003e802.11 b\/g\/n, up to 150Mbps\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(33, 33, 33);font-size:10.5pt;font-family:sans-serif\"\u003eBluetooth\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(33, 33, 33);font-size:10.5pt;font-family:sans-serif\"\u003eBluetooth (LE), Bluetooth 5, Bluetooth Mesh\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:rgb(211, 241, 240);padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(51, 51, 51);font-size:10.5pt;font-family:sans-serif\"\u003eHardware Resource\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"background-color:rgb(211, 241, 240);padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(51, 51, 51);font-size:10.5pt;font-family:sans-serif\"\u003e7*ADC1 + 2*ADC2;\u003cbr\u003e7*Touch;\u003cbr\u003e3*UART;\u003cbr\u003e2*I2C;\u003cbr\u003e2*SPI; etc.\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(33, 33, 33);font-size:10.5pt;font-family:sans-serif\"\u003eMemory\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(33, 33, 33);font-size:10.5pt;font-family:sans-serif\"\u003e384KB ROM; 512KB SRAM; 16KB RTC SRAM; 2MB PSRAM; 16MB Flash\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:rgb(211, 241, 240);padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(51, 51, 51);font-size:10.5pt;font-family:sans-serif\"\u003eInterface\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"background-color:rgb(211, 241, 240);padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(51, 51, 51);font-size:10.5pt;font-family:sans-serif\"\u003eType-C USB;\u003cbr\u003e1.25*2 Pin lithium battery interface;\u003cbr\u003e1.25*2 Pin Solar interface;\u003cbr\u003e1.25*8 Pin interface;\u003cbr\u003eLoRa ANT(IPEX1.0);\u003cbr\u003e2.4G ANT(IPEX1.0)\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(33, 33, 33);font-size:10.5pt;font-family:sans-serif\"\u003eBattery applicable\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(33, 33, 33);font-size:10.5pt;font-family:sans-serif\"\u003e3.3-4.4V lithium battery\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:rgb(211, 241, 240);padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(51, 51, 51);font-size:10.5pt;font-family:sans-serif\"\u003eOperating Temperature\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"background-color:rgb(211, 241, 240);padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(51, 51, 51);font-size:10.5pt;font-family:sans-serif\"\u003e-20 ~ 70 ℃\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(33, 33, 33);font-size:10.5pt;font-family:sans-serif\"\u003eDimensions\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(33, 33, 33);font-size:10.5pt;font-family:sans-serif\"\u003e51.7 * 25.4* 10.7mm\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cp style=\"text-align:center\" align=\"center\"\u003e\u003cspan style='font-size:32px;font-family:\"comic sans ms\", cursive'\u003eLayout\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align:center\" align=\"center\"\u003e\u003cimg src=\"https:\/\/heltec.org\/wp-content\/uploads\/2025\/09\/V414.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align:center\" align=\"center\"\u003e\u003cspan style='font-size:32px;font-family:\"comic sans ms\", cursive'\u003ePin Map\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align:center\" align=\"center\"\u003e\u003cimg src=\"https:\/\/heltec.org\/wp-content\/uploads\/2025\/09\/V4-pinmap-1.png\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/m.media-amazon.com\/images\/S\/aplus-media-library-service-media\/8916dcff-8ed1-414a-abe7-dad1deb482d5.__CR0,0,970,600_PT0_SX970_V1___.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/m.media-amazon.com\/images\/I\/61ohT7kUvWL._AC_SL1500_.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/m.media-amazon.com\/images\/I\/6125lWPpPrL._AC_SL1500_.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/m.media-amazon.com\/images\/I\/61tVG8riM5L._AC_SL1500_.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/m.media-amazon.com\/images\/I\/712W5Wny5oL._AC_SL1500_.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/m.media-amazon.com\/images\/I\/615kv7w37QL._AC_SL1500_.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/m.media-amazon.com\/images\/I\/71xgQ0kkN9L._AC_SL1500_.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align:center\" align=\"center\"\u003e\u003cspan style='font-size:32px;font-family:\"comic sans ms\", cursive'\u003ePacking List\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv align=\"center\"\u003e\u003ctable style=\"border-collapse:collapse;width:360pt\" border=\"0\" cellspacing=\"0\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:rgb(43, 150, 146);padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:center;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"center\"\u003e\u003cstrong\u003e\u003cspan style=\"color:rgb(255, 255, 255);font-size:13.5pt;font-family:sans-serif\"\u003eItem\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"background-color:rgb(43, 150, 146);padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:center;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"center\"\u003e\u003cstrong\u003e\u003cspan style=\"color:rgb(255, 255, 255);font-size:13.5pt;font-family:sans-serif\"\u003eQuantity\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(33, 33, 33);font-size:10.5pt;font-family:sans-serif\"\u003eWiFi LoRa 32 (V4)\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(33, 33, 33);font-size:10.5pt;font-family:sans-serif\"\u003ex1\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:rgb(211, 241, 240);padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(33, 33, 33);font-size:10.5pt;font-family:sans-serif\"\u003eLoRa Antenna\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"background-color:rgb(211, 241, 240);padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(33, 33, 33);font-size:10.5pt;font-family:sans-serif\"\u003ex1\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(33, 33, 33);font-size:10.5pt;font-family:sans-serif\"\u003e1.25×2 Connector (for battery\u0026amp;solar)\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(33, 33, 33);font-size:10.5pt;font-family:sans-serif\"\u003ex2\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:rgb(211, 241, 240);padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(33, 33, 33);font-size:10.5pt;font-family:sans-serif\"\u003e2.54*18 Header Pin\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"background-color:rgb(211, 241, 240);padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(33, 33, 33);font-size:10.5pt;font-family:sans-serif\"\u003ex2\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(33, 33, 33);font-size:10.5pt;font-family:sans-serif\"\u003e2.54*2 Header Pin\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:3.75pt 7.5pt 3.75pt 3.75pt\"\u003e\u003cp style=\"text-align:left;margin:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;margin-right:0pt\" class=\"MsoNormal\" align=\"left\"\u003e\u003cspan style=\"color:rgb(33, 33, 33);font-size:10.5pt;font-family:sans-serif\"\u003ex2\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-size:28px;font-family:arial, helvetica, sans-serif\"\u003eFAQ\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan style=\"background-color:rgb(255, 255, 255);color:rgb(211, 49, 21);font-size:15px;font-family:arial, helvetica, sans-serif\"\u003e\u003cstrong\u003e1.“LoRa Error”\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"background-color:rgb(255, 255, 255);color:rgb(0, 0, 0);font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003cspan style=\"font-family:arial, helvetica, sans-serif\"\u003e\u003cspan style=\"background-color:rgb(255, 255, 255);color:rgb(51, 51, 51);font-size:16px;font-family:arial, helvetica, sans-serif\"\u003eIt does not indicate device damage. Please disregard this phenomenon. The \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"background-color:rgb(255, 255, 255);color:rgb(0, 0, 0);font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003cspan style=\"background-color:rgb(255, 255, 255);color:rgb(51, 51, 51);font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003cspan style=\"font-family:arial, helvetica, sans-serif\"\u003e\u003cstrong\u003eLORA ERROR\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"background-color:rgb(255, 255, 255);color:rgb(0, 0, 0);font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003cspan style=\"font-family:arial, helvetica, sans-serif\"\u003e\u003cspan style=\"background-color:rgb(255, 255, 255);color:rgb(51, 51, 51);font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e occurs because it is running the factory default LORA testing program and cannot find another device running the same program.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"background-color:rgb(255, 255, 255);color:rgb(211, 49, 21);font-size:15px;font-family:arial, helvetica, sans-serif\"\u003e\u003cstrong\u003e2.Failed to flash firmware or upload code.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003col style=\"font-family:Roboto, sans-serif;font-size:16px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(51, 51, 51);background-color:rgb(255, 255, 255);margin:0px 0px 10px 20px;margin-bottom:10px;margin-top:0px;margin-left:20px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;list-style:decimal;box-sizing:border-box\" align=\"start\"\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\" class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eEnter BootLoader mode:\u003c\/strong\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eConnect the USB-C cable, hold down the \u003cstrong\u003ePRG\u003c\/strong\u003e button, press the \u003cstrong\u003eRST\u003c\/strong\u003e button once, then release the \u003cstrong\u003ePRG\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ebutton.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp\u003eReplace a USB data cable.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp\u003eChange the port on the computer.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan style=\"background-color:rgb(255, 255, 255);color:rgb(211, 49, 21);font-size:15px;font-family:arial, helvetica, sans-serif\"\u003e\u003cstrong\u003e3.Firmware for V4.3.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"font-family:Roboto, sans-serif;font-size:16px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(51, 51, 51);background-color:rgb(255, 255, 255);margin:0px 0px 10px;margin-bottom:10px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\" align=\"start\"\u003e\u003cspan style=\"color:rgb(0, 0, 0)\"\u003e\u003cstrong\u003eHardware version 4.3\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color:rgb(0, 0, 0)\"\u003e requires new firmware.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"font-family:Roboto, sans-serif;font-size:16px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(51, 51, 51);background-color:rgb(255, 255, 255);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\" class=\"ds-message _63c77b1\" align=\"start\"\u003e\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\" class=\"ds-markdown\"\u003e\u003chr style=\"background-color:transparent;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cp\u003eSchematic of V4.3, please consult customer service\u003c\/p\u003e\n\u003cdiv style=\"font-family:Roboto, sans-serif;font-size:16px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(51, 51, 51);background-color:rgb(255, 255, 255);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\" class=\"ds-message _63c77b1\" align=\"start\"\u003e\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\" class=\"ds-markdown\"\u003e\u003cul style=\"margin:0px 0px 0px 20px;margin-bottom:0px;margin-top:0px;margin-left:20px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;list-style:disc;box-sizing:border-box\"\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp\u003eIf you are using\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHeltec’s development framework\u003c\/strong\u003e, please update the board package and LoRa library to the latest via GitHub.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\" class=\"ds-markdown-paragraph\"\u003e\u003cp\u003e\u003cstrong\u003eMeshtastic\u003c\/strong\u003e, please use firmware version 2.7.20 or above.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\" class=\"ds-markdown-paragraph\"\u003e\u003cp\u003e\u003cstrong\u003eMeshCore\u003c\/strong\u003e, please use firmware version 1.15.0 or above.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color:rgb(211, 49, 21);font-family:arial, helvetica, sans-serif\"\u003e\u003cstrong\u003e4.Enable or Disable LNA.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"font-family:Roboto, sans-serif;font-size:16px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(51, 51, 51);background-color:rgb(255, 255, 255);margin:0px 0px 10px;margin-bottom:10px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\" align=\"start\"\u003e\u003cstrong\u003eNote: The following content only applies to hardware V4.3 and above\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"font-family:Roboto, sans-serif;font-size:16px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(51, 51, 51);background-color:rgb(255, 255, 255);margin:0px 0px 0px 20px;margin-bottom:0px;margin-top:0px;margin-left:20px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;list-style:disc;box-sizing:border-box\" align=\"start\"\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp\u003eMeshtastic 2.7.20: On the device, use the PRG button to navigate to “System” → “LoRa”, where you can choose to enable or disable LNA.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\n\u003cdiv\u003eMeshCore 1.15.0: LNA is enabled by default and cannot be modified.\u003c\/div\u003e\n\u003cul style=\"margin:0px 0px 0px 20px;margin-bottom:0px;margin-top:0px;margin-left:20px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;list-style:disc;box-sizing:border-box\"\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp\u003e You can download the firmware from this link, which has LNA disabled by default:\u003cspan\u003e The link cannot be displayed. Please consult customer service\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp\u003eWith the firmware from this link, LNA can be toggled via button long press:\u003cspan\u003e The link cannot be displayed. Please consult customer service\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp\u003e We have submitted a PR. In the near future, official firmware will also support toggling LNA via command line or button.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color:rgb(255, 255, 255);color:rgb(211, 49, 21);font-size:15px;font-family:arial, helvetica, sans-serif\"\u003e5\u003c\/span\u003e\u003c\/strong\u003e\u003cspan style=\"background-color:rgb(255, 255, 255);color:rgb(211, 49, 21);font-size:15px;font-family:arial, helvetica, sans-serif\"\u003e.\u003c\/span\u003e\u003cspan style=\"background-color:rgb(255, 255, 255);color:rgb(211, 49, 21);font-size:15px;font-family:arial, helvetica, sans-serif\"\u003e\u003cstrong\u003eThe screen does not display.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"background-color:rgb(255, 255, 255);color:rgb(51, 51, 51);font-size:16px;font-family:Roboto, sans-serif\"\u003ePlease note: “Meshtastic UI” is for use with the touchscreen. For ordinary OLED screens, please do not Select it.\u003c\/span\u003e\u003cspan style=\"color:rgb(211, 49, 21)\"\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cimg width=\"750\" height=\"auto\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Sc4f9c59fdea14017aee0f0ac477bf55ex.png\" slate-data-type=\"image\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\u003cp\u003e\u003cspan style=\"color:rgb(211, 49, 21)\"\u003e\u003cstrong\u003e6.Why are there no resistors soldered on the 868 and 915 markings? Which frequency band does my device actually support?\u003cbr\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cimg src=\"https:\/\/heltec.org\/wp-content\/uploads\/2025\/10\/V4-868915-300x201.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cp\u003eIt indicates simultaneous support for both 868 MHz and 915 MHz frequency bands.\u003c\/p\u003e\n\u003cp style=\"font-family:Roboto, sans-serif;font-size:16px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(51, 51, 51);background-color:rgb(255, 255, 255);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\" align=\"start\"\u003eIn the initial design, we developed two separate hardware versions to achieve optimal RF performance. However, through subsequent debugging, we have successfully unified the hardware for both 868 MHz and 915 MHz while maintaining excellent RF characteristics.\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003cbr\u003e","brand":"Yoeruyo","offers":[{"title":"With Glue Ant \/ 2PCS 863-928Mhz \/ China Mainland","offer_id":55504302702891,"sku":"14:771#With Glue Ant;200007763:201336100;978:107942490#2PCS 863-928Mhz","price":203.2,"currency_code":"USD","in_stock":true},{"title":"Spring Ant And GPS \/ 2PCS 863-928Mhz \/ China Mainland","offer_id":55504302735659,"sku":"14:1254#Spring Ant And GPS;200007763:201336100;978:107942490#2PCS 863-928Mhz","price":243.4,"currency_code":"USD","in_stock":true},{"title":"Glue Ant And GPS \/ 2PCS 863-928Mhz \/ China Mainland","offer_id":55504302768427,"sku":"14:193#Glue Ant And GPS;200007763:201336100;978:107942490#2PCS 863-928Mhz","price":243.4,"currency_code":"USD","in_stock":true},{"title":"With Spring Ant \/ 2PCS 863-928Mhz \/ China Mainland","offer_id":55504302801195,"sku":"14:173#With Spring Ant;200007763:201336100;978:107942490#2PCS 863-928Mhz","price":203.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1000\/5744\/8747\/files\/S343ab340ac8c4f348f05aa5336987895e_eec95cd0-b1fd-452d-b164-98f98efc1357.webp?v=1788924379","url":"https:\/\/yoeruyo.com\/products\/2pcs-heltec-v4-lora32-esp32-s3-sx1262-lorawan-868mhz-development-board-with-0-96-inch-oled-wifi-ble-mesh-network-for-iot-1","provider":"Yoeruyo","version":"1.0","type":"link"}