KinCony A24 esp32 board based on ESP32 wifi chip, it have manual control switch buttons can turn ON/OFF relay even if system is broken. Support 3CH K-Type thermocouple use by MAX31855 chip. It support GSM module for SMS, voice call, GPRS communication for Tuya mobile application. Use SMS or call to turn ON/OFF relay will be very easy for home automation DIY. You can write any code by Arduino IDE to ESP32 wifi/bluetooth/ethernet RS485 module. We will supply demo code for different samples. Everyone can modify and change the code for your own smart home automation system project. it support use by ESPHome for home assistant or tasmota firmware for smart home automation DIY.
Related technical information
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schematic: https://www.kincony.com/download/A24-schematic.pdf
ESP32 I/O pin define: https://www.kincony.com/forum/showthread.php?tid=3921
config yaml file for ESPHome: https://www.kincony.com/forum/showthread.php?tid=3922
arduino demo source code: https://www.kincony.com/forum/forumdisplay.php?fid=56
KCS v2 firmware online guide: https://www.kincony.com/esp32-kcsv2-firmware.html
KCS v2 function explanation video tour: https://youtu.be/-DexVHAxPUM
