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Inside the SerialChiller is an ESP32, a MAX3232 line driver ... be used to turn the SerialChiller into a USB-to-serial cable as well. The hardware for this project is pretty straightforward ...
DIY Pomodoro project uses ESP32 microcontroller, not a Pi ESP32 is great for IoT projects needing Wi-Fi, Bluetooth Rukenshia designed and shared guide for making e-ink timer I'll admit it; I usually ...