{"product_id":"1pcs-ttgo-t-call-v1-4-esp32-wifi-bluetooth-sim800l-gsm-gprs-module-iot-development-board-for-arduino-smart-projects","title":"1PCS TTGO T-Call V1.4 ESP32 WiFi Bluetooth SIM800L GSM GPRS Module IoT Development Board for Arduino Smart Projects","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNoEnName_Null\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eCondition\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNew\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\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eModule\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cp\u003e\u003cstrong style=\"font-style: normal;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;color: #ff0000;font-size: 16.0px;background-color: #ffffff;\"\u003e\u003cimg cke-id=\"img58\" referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/S41a8567abc3f4801b6d1ea0c61fb3ac7q.jpg?width=1000\u0026amp;height=1000\u0026amp;hash=2000\"\u003e\u003cimg cke-id=\"img59\" referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/S2b74aafc61a54759853879cda0f8d939P.jpg?width=1000\u0026amp;height=1000\u0026amp;hash=2000\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg align=\"absmiddle\" cke-id=\"img79\" referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/S04e0fba06c8d4013ab226115a28c4addn.jpg?width=1000\u0026amp;height=1000\u0026amp;hash=2000\" style=\"max-width: 750.0px;\"\u003e\u003cimg align=\"absmiddle\" cke-id=\"img80\" referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sb5ee99a922c34a0fbb87cc086a22812eD.jpg?width=1000\u0026amp;height=1000\u0026amp;hash=2000\" style=\"max-width: 750.0px;\"\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg align=\"absmiddle\" cke-id=\"img83\" referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/S3203df6b84044601a5287a06260a5eb4O.jpg?width=1920\u0026amp;height=1357\u0026amp;hash=3277\" style=\"max-width: 750.0px;\"\u003e\u003cimg align=\"absmiddle\" cke-id=\"img85\" referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sbf13b9ce54314707b69bd9d355c0da489.jpg?width=1034\u0026amp;height=453\u0026amp;hash=1487\" style=\"max-width: 750.0px;\"\u003e\u003c\/p\u003e\n\n\u003cp style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;color: #333333;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;\"\u003e\u003cstrong style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;font-weight: 700;\"\u003e\u003cspan style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003eT-Call V1.4Specifications：\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ctable style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;border-collapse: collapse;border-spacing: 0.0px;color: #333333;font-size: 12.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;width: 622.0px;height: 889.0px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"21\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003e\n\u003ctable style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;border-collapse: collapse;border-spacing: 0.0px;width: 622.0px;height: 942.0px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"21\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003eHardware Specifications\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"423\"\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"40\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003eChipset\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"423\"\u003eMCURESSIF-MCU32 240MHz Xtensa® single-\/dual-core 32-bit LX6 microprocessor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"20\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003eFLASH\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"423\"\u003eQSPI flash 4MB \/ PSRAM 8MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"20\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003eSRAM\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"423\"\u003e520 kB SRAM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"20\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003eButton\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"423\"\u003eReset\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"20\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003eUSB to TTL\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"423\"\u003eCH9102F QFN24 \/ CP2104 \/ CH340K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"40\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003eModular interface\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"423\"\u003eUART、SPI、SDIO、I2C、LED PWM、TV PWM、I2S、IRGPIO、capacitor touch sensor、ADC、DACLNA pre-amplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"20\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003eOn-board clock\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"423\"\u003e40MHz crystal oscillator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"20\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003eWorking voltage\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"423\"\u003e2.7V-3.6V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"20\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003eWorking current\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"423\"\u003eAbout 70mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"20\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003eSleep current\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"423\"\u003eAbout 1.1mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"20\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003eSIM card\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"423\"\u003eOnly supports Nano SIM card\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"20\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003eWorking temperature range\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"423\"\u003e-40℃ ~ +85℃\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"25\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003eSize\u0026amp;Weight\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"423\"\u003e78.83mm*28.92mm*8.06mm(11.77g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"25\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003ePower Supply Specifications\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"423\"\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"22\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003ePower Supply\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"423\"\u003eUSB 5V\/1A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"24\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003eCharging current\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"423\"\u003e500mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"26\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003eBattery\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"423\"\u003e3.7V lithium battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"26\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003eJST Connector\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"423\"\u003e2Pin 1.25mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"26\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003eUSB\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"423\"\u003eType-C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"21\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003eWi-Fi\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"423\"\u003eDescription\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"20\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003eStandard\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"423\"\u003eFCC\/CE-RED\/IC\/TELEC\/KCC\/SRRC\/NCC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"40\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003eProtocol\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"423\"\u003e802.11 b\/g\/n(802.11n，speed up to150Mbps)A-MPDU and A-MSDU polymerization，support 0.4μS Protection interval\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"20\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003eFrequency range\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"423\"\u003e2.4GHz~2.5GHz(2400M~2483.5M)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"20\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003eTransmit Power\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"423\"\u003e22dBm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"20\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003eCommunication distance\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"423\"\u003e300m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"21\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003eBluetooth\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"423\"\u003eDescription\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"20\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003eProtocol\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"423\"\u003emeet bluetooth v4.2BR\/EDR and BLE standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"40\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003eRadio frequency\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"423\"\u003ewith -97dBm sensitivity NZIF receiver Class-1,Class-2\u0026amp;Class-3 emitter AFH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"20\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003eAudio frequency\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"423\"\u003eCVSD\u0026amp;SBC audio frequency\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"21\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003eSoftware specification\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"423\"\u003eDescription\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"20\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003eWi-Fi Mode\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"423\"\u003eStation\/SoftAP\/SoftAP+Station\/P2P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\"\u003e\n\u003ctd height=\"20\" style=\"box-sizing: border-box;margin: 0.0px;padding: 0.0px;outline: none;\" width=\"199\"\u003eSecurity mechanism\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box;margin: 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