{"product_id":"ttgo-t-call-v1-4-esp32-wifi-bluetooth-sim800l-module-development-board-with-sim-card-slot-gsm-gprs-antenna-iot-wireless","title":"TTGO T-Call V1.4 ESP32 WiFi Bluetooth SIM800L Module Development Board with SIM Card Slot GSM GPRS Antenna IoT Wireless","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNONE\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\u003ch3 style='font: 700 20px \/ 30px quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Oxygen, Ubuntu, Cantarell, \"Open Sans\", \"Helvetica Neue\", sans-serif; margin: 32px 0px 16px; color: rgb(15, 17, 21); letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cspan\u003eProduct Introduction\u003c\/span\u003e\u003c\/h3\u003e\n\n\u003cp class=\"ds-markdown-paragraph\" style='margin: 16px 0px; color: rgb(15, 17, 21); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Oxygen, Ubuntu, Cantarell, \"Open Sans\", \"Helvetica Neue\", sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cspan\u003eThe main body of the module consists of the ESP32-WROVER-B and SIM800L module, with a USB-to-serial chip CP210X extending to a TYPE-C interface. It can be directly connected to a computer via a USB cable for debugging, offering fast and stable data transmission. The ESP32-WROVER-B is a general-purpose Wi-Fi + BT + BLE MCU module, integrating the ESP32-D0WD chip with an onboard PCB antenna, combining Bluetooth and Wi-Fi into one. The SIM800L is a quad-band GSM\/GPRS module with an operating frequency of 850\/900\/1800\/1900 MHz, enabling low-power voice, SMS, and data transmission. The standout feature of this module is the integration of the ESP32-WROVER-B and SIM800L, combining the functions of both modules. It also includes a lithium battery charging and discharging circuit, allowing battery power supply and charging, with overcharge and over-discharge protection.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003chr style='background: none 0% 0% \/ auto repeat scroll padding-box border-box rgba(0, 0, 0, 0.1); border: none; height: 1px; margin: 32px 0px; display: block; font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Oxygen, Ubuntu, Cantarell, \"Open Sans\", \"Helvetica Neue\", sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\n\u003ch2 style='font: 700 22px \/ 32px quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Oxygen, Ubuntu, Cantarell, \"Open Sans\", \"Helvetica Neue\", sans-serif; margin: 32px 0px 16px; color: rgb(15, 17, 21); letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cspan\u003ePARAMETERS\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cp class=\"ds-markdown-paragraph\" style='margin: 16px 0px; color: rgb(15, 17, 21); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Oxygen, Ubuntu, Cantarell, \"Open Sans\", \"Helvetica Neue\", sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cstrong style=\"font-weight: 600;\"\u003e\u003cspan\u003ePower Supply Voltage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003eDC 3.6V–5V (5V input via TYPE-C port)\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"ds-markdown-paragraph\" style='margin: 16px 0px; color: rgb(15, 17, 21); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Oxygen, Ubuntu, Cantarell, \"Open Sans\", \"Helvetica Neue\", sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cstrong style=\"font-weight: 600;\"\u003e\u003cspan\u003eOnboard Lithium Battery Interface\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003ewith integrated charging and discharging circuit\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"ds-markdown-paragraph\" style='margin: 16px 0px; color: rgb(15, 17, 21); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Oxygen, Ubuntu, Cantarell, \"Open Sans\", \"Helvetica Neue\", sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cspan\u003eThe module can charge the battery while operating\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"ds-markdown-paragraph\" style='margin: 16px 0px; color: rgb(15, 17, 21); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Oxygen, Ubuntu, Cantarell, \"Open Sans\", \"Helvetica Neue\", sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cstrong style=\"font-weight: 600;\"\u003e\u003cspan\u003eCharging Current:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003e500mA\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"ds-markdown-paragraph\" style='margin: 16px 0px; color: rgb(15, 17, 21); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Oxygen, Ubuntu, Cantarell, \"Open Sans\", \"Helvetica Neue\", sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cspan\u003eSupports Wi-Fi and Bluetooth transmission\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"ds-markdown-paragraph\" style='margin: 16px 0px; color: rgb(15, 17, 21); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Oxygen, Ubuntu, Cantarell, \"Open Sans\", \"Helvetica Neue\", sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cstrong style=\"font-weight: 600;\"\u003e\u003cspan\u003eFlip-type SIM Card Slot\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003e— compatible with China Mobile or China Unicom 2G\/3G\/4G Nano SIM cards\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"ds-markdown-paragraph\" style='margin: 16px 0px; color: rgb(15, 17, 21); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Oxygen, Ubuntu, Cantarell, \"Open Sans\", \"Helvetica Neue\", sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cspan\u003eSupports voice, SMS, and data transmission\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"ds-markdown-paragraph\" style='margin: 16px 0px; color: rgb(15, 17, 21); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Oxygen, Ubuntu, Cantarell, \"Open Sans\", \"Helvetica Neue\", sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cspan\u003eOnboard two audio interfaces: microphone input and audio output\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"ds-markdown-paragraph\" style='margin: 16px 0px; color: rgb(15, 17, 21); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Oxygen, Ubuntu, Cantarell, \"Open Sans\", \"Helvetica Neue\", sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cspan\u003eOnboard one 1013 footprint blue LED indicator\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sf99420ac758341cd8d00d9a558092f68I.jpg?width=1000\u0026amp;height=1000\u0026amp;hash=2000\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sbc1882d36eab4338b30c57fd45e15e21j.jpg?width=1000\u0026amp;height=1000\u0026amp;hash=2000\"\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/S52b7449f1d49496eb7151e81f655ca5fF.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sf5a4a412a8474832b7c3673e07b111fcr.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sd6fa1717690d4e439eb13435ed644c430.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/S0f5bbb0c1042421da9ab3dd726b9e1e1v.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/S62622b6c969c4b1bb6e2b92ac9f048e18.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/S7843bed775104e64a4a8b4a220acf56bi.jpg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S22ac616ab1984b9f9ea9308e8644f5dfr.jpg?width=1500\u0026amp;height=2322\u0026amp;hash=3822\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S9a140ca82e91436b81dd99681bd92cd8M.jpg?width=1500\u0026amp;height=2322\u0026amp;hash=3822\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sc9092c043b2d4cc68221345d2b3eb9fbf.jpg?width=1500\u0026amp;height=2322\u0026amp;hash=3822\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Se9d0dbacd27f4ebca3f03a83ab079858a.jpg?width=1500\u0026amp;height=2322\u0026amp;hash=3822\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\r\n","brand":"Yoeruyo","offers":[{"title":"Default Title","offer_id":55507051217195,"sku":"\u003cnone\u003e","price":88.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1000\/5744\/8747\/files\/Sf5a4a412a8474832b7c3673e07b111fcr.webp?v=1788939732","url":"https:\/\/yoeruyo.com\/products\/ttgo-t-call-v1-4-esp32-wifi-bluetooth-sim800l-module-development-board-with-sim-card-slot-gsm-gprs-antenna-iot-wireless","provider":"Yoeruyo","version":"1.0","type":"link"}