Smart Doorbell - JRInge/ha GitHub Wiki

Notes for turning a dumb 9V door chime into a smart doorbell.

• Set up Lubuntu 18.04 LTS Development Environment
• Zeroconf MQTT set-up

References

• ESP32 tutorials
• Getting started with the D1 mini
• ESP8266 smart doorbell implementation
• Reducing ESP8266 power consumption
• Beginners Guide to Wiring Things to the GPIO
• GPIO pin electrical specs
• Arduino with Optocouplers
• 4N32 optocoupler data sheet
• 1N5817 diode data sheet