At the heart of the “Walter” board lies the ESP32-S3 microcontroller, equipped with 2MB of RAM and 16MB of flash memory.
The project uses an ESP32C3, BMP280 temp & pressure sensor, a relay, and a sacrificed USB wall charger to convert mains AC ...
Currently runs on Arduino Uno, intended for ESP32 so it can exchange requests with a webserver. Uses a PN532 RFID/NFC reader to read cards. Provided feedback for the user on a GP9A01 round 240x240 TFT ...