Note: From 20th Dec 2019 onwards, this product is shipped with Pre-Solder Header Pins to further simplify your digital making :)
Note: From 27th Jan 2021 onwards, this product is updated to version 1.4.
Note: However, we notice the distance between left and right header pins are not breadboard friendly, so it cannot stack onto breadboard :( Yet, you can still use jumper wires to interface. Check out this tutorial video that uses this board to send and receive SMS, further control relay.
T-CALL is an ESP32 board integrated with GPRS module SIM800L that enables your project to have many wireless technologies, WiFi, Bluetooth and also Cellular. It also comes with USB Type-C for power input and also data for downloading firmware and serial debug. It can also be a standalone board with a built-in battery charging that supports up to 500mA. Best of all it supports Arduino IDE :)