{"product_id":"ttgo-t-call-v1-3-esp32-sim800h-wireless-module","title":"TTGO T-Call V1.3 ESP32 SIM800H Wireless Module","description":"\u003cstyle\u003e\n    .product-copy {\n      line-height: 1.7;\n      color: #222;\n      font-size: 16px;\n    }\n\n```\n.product-copy h2,\n.product-copy h3 {\n  margin-top: 28px;\n  margin-bottom: 12px;\n  line-height: 1.3;\n}\n\n.product-copy p {\n  margin-bottom: 16px;\n}\n\n.product-copy ul {\n  margin: 12px 0 18px 22px;\n  padding: 0;\n}\n\n.product-copy li {\n  margin-bottom: 8px;\n}\n\n.product-copy table {\n  width: 100%;\n  border-collapse: collapse;\n  margin: 18px 0;\n  font-size: 15px;\n}\n\n.product-copy th,\n.product-copy td {\n  border: 1px solid #ddd;\n  padding: 12px;\n  text-align: left;\n  vertical-align: top;\n}\n\n.product-copy th {\n  background: #f7f7f7;\n  font-weight: 700;\n  width: 35%;\n}\n\n.product-copy .note {\n  background: #fff8e5;\n  border-left: 4px solid #f0b429;\n  padding: 12px 14px;\n  margin: 18px 0;\n  border-radius: 6px;\n}\n\n.product-copy .warning {\n  background: #fff0f0;\n  border-left: 4px solid #d93025;\n  padding: 12px 14px;\n  margin: 18px 0;\n  border-radius: 6px;\n  font-weight: 700;\n}\n\n.product-copy .faq-list details {\n  border: 1px solid #ddd;\n  padding: 14px 16px;\n  margin-bottom: 10px;\n  border-radius: 8px;\n  background: #fff;\n}\n\n.product-copy .faq-list summary {\n  cursor: pointer;\n  font-weight: 700;\n}\n```\n\n  \u003c\/style\u003e\n\u003cdiv class=\"product-copy\"\u003e\n\u003ch2\u003eTTGO T-Call V1.3 ESP32 SIM800H Wireless Module\u003c\/h2\u003e\n\u003cp\u003eThe TTGO T-Call V1.3 ESP32 SIM800H Wireless Module is an ESP32-based development board with built-in GSM\/GPRS support. It combines WiFi, Bluetooth, and 2G cellular communication in one board, making it useful for IoT projects that need remote data sending, SMS alerts, and SIM-based connectivity.\u003c\/p\u003e\n\u003cp\u003eThis board is a good choice for projects placed in areas without WiFi access. With a compatible SIM card and 2G network coverage, it can send SMS, make cellular data connections, and build remote monitoring systems.\u003c\/p\u003e\n\u003cdiv class=\"warning\"\u003e\n\u003cp\u003eImportant: This board uses 2G GSM\/GPRS. It does not support 3G, 4G, LTE, or 5G. Please check if 2G service is available in your area before use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eWhy Choose This Module?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCombines ESP32 WiFi, Bluetooth, and GSM\/GPRS in one board.\u003c\/li\u003e\n\u003cli\u003eUseful for IoT projects without nearby WiFi.\u003c\/li\u003e\n\u003cli\u003eSupports SMS, cellular data, and remote monitoring projects.\u003c\/li\u003e\n\u003cli\u003eHas a Type-C USB port for power and programming.\u003c\/li\u003e\n\u003cli\u003eSupports Nano SIM card use.\u003c\/li\u003e\n\u003cli\u003eGood for GPS trackers, alerts, sensor logs, and field devices.\u003c\/li\u003e\n\u003cli\u003eWorks with Arduino IDE and ESP32 development tools.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSMS alert systems\u003c\/li\u003e\n\u003cli\u003eRemote sensor monitoring\u003c\/li\u003e\n\u003cli\u003eIoT projects without WiFi\u003c\/li\u003e\n\u003cli\u003eGPRS data upload projects\u003c\/li\u003e\n\u003cli\u003eGPS tracker projects when paired with a GPS module\u003c\/li\u003e\n\u003cli\u003eFarm, field, and outdoor monitoring\u003c\/li\u003e\n\u003cli\u003eSecurity and alarm systems\u003c\/li\u003e\n\u003cli\u003eSmart meter and status reporting projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat’s Included?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTTGO T-Call V1.3 ESP32 SIM800H Wireless Module - 1 pc\u003c\/li\u003e\n\u003cli\u003eGSM antenna - 1 pc, if included in the supplier package\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"note\"\u003e\n\u003cp\u003eNote: SIM card, USB cable, battery, GPS module, sensors, and other accessories are not included unless stated in the actual package.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eESP32 GSM\/GPRS wireless development board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eTTGO T-Call V1.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCellular Module\u003c\/th\u003e\n\u003ctd\u003eSIM800H GSM\/GPRS module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMain Controller\u003c\/th\u003e\n\u003ctd\u003eESP32 dual-core 32-bit LX6 processor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWireless Support\u003c\/th\u003e\n\u003ctd\u003eWiFi, Bluetooth, GSM, and GPRS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCellular Network\u003c\/th\u003e\n\u003ctd\u003e2G GSM\/GPRS only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGSM Bands\u003c\/th\u003e\n\u003ctd\u003e850 \/ 900 \/ 1800 \/ 1900MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSIM Card Type\u003c\/th\u003e\n\u003ctd\u003eNano SIM card\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUSB Port\u003c\/th\u003e\n\u003ctd\u003eUSB Type-C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower Requirement\u003c\/th\u003e\n\u003ctd\u003e5V power input recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProgramming Support\u003c\/th\u003e\n\u003ctd\u003eArduino IDE, ESP-IDF, and ESP32-compatible tools\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBest For\u003c\/th\u003e\n\u003ctd\u003eIoT, SMS alerts, GPRS data projects, remote monitoring, and cellular sensor systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eSetup Notes\u003c\/h3\u003e\n\u003cp\u003eInsert a compatible Nano SIM card with active 2G GSM\/GPRS service. Connect the GSM antenna before testing cellular functions. Then connect the board through USB Type-C for programming and power.\u003c\/p\u003e\n\u003cp\u003eInstall ESP32 board support in Arduino IDE before uploading code. For GSM features, use a compatible SIM800 library or AT command-based code.\u003c\/p\u003e\n\u003ch3\u003ePower and Network Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThis board needs stable power for GSM transmission.\u003c\/li\u003e\n\u003cli\u003eUse a good 5V power source for reliable operation.\u003c\/li\u003e\n\u003cli\u003e2G network coverage is required for SIM800H functions.\u003c\/li\u003e\n\u003cli\u003eThis board does not support LTE SIM data.\u003c\/li\u003e\n\u003cli\u003eNetwork results may vary depending on SIM provider and location.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSIM card is not included.\u003c\/li\u003e\n\u003cli\u003eUSB cable is not included unless stated in the package.\u003c\/li\u003e\n\u003cli\u003eCheck 2G network support before purchase.\u003c\/li\u003e\n\u003cli\u003eConnect the antenna before using GSM functions.\u003c\/li\u003e\n\u003cli\u003eUse correct ESP32 and SIM800H libraries for your project.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eRecommended Add-ons\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/esp32\"\u003eESP32 boards and modules\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/antennas\"\u003eAntennas\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/sensors\"\u003eSensors and modules\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/usb-cables\"\u003eUSB cables\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/power-supply\"\u003ePower supplies\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-list\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the TTGO T-Call V1.3 used for?\u003c\/summary\u003e\n\u003cp\u003eIt is used for ESP32 projects that need GSM\/GPRS features such as SMS, remote alerts, and cellular data sending.\u003c\/p\u003e\n\u003c\/details\u003e\n```\n\u003cdetails\u003e\n\u003csummary\u003eDoes this support 4G or LTE?\u003c\/summary\u003e\n\u003cp\u003eNo. This board supports 2G GSM\/GPRS only.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes it include a SIM card?\u003c\/summary\u003e\n\u003cp\u003eNo. A compatible Nano SIM card is required and sold separately.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use this with Arduino IDE?\u003c\/summary\u003e\n\u003cp\u003eYes. It can be programmed using Arduino IDE with ESP32 board support installed.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan this send SMS?\u003c\/summary\u003e\n\u003cp\u003eYes. With a compatible SIM card and active 2G network service, it can be used for SMS-based projects.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"circuitrocks","offers":[{"title":"Default Title","offer_id":52860434678049,"sku":"0625","price":2829.0,"currency_code":"PHP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/files\/YXA632-1.jpg?v=1781677150","url":"https:\/\/circuit.rocks\/products\/ttgo-t-call-v1-3-esp32-sim800h-wireless-module","provider":"circuitrocks","version":"1.0","type":"link"}