PCF8574 pin expansion (to use ESP-01 in lieu of WeMos)

structure7 / irrigationControl

Providing manual override for my Orbit sprinkler controller, and my life.

MIT License

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PCF8574 pin expansion (to use ESP-01 in lieu of WeMos) #9

Open structure7 opened 7 years ago

structure7 commented 7 years ago

On jumper addresses: http://www.instructables.com/id/Arduino-and-Visuino-Use-PCF8574PCF8574A-I2C-GPIO-t/step2/Select-the-PCF8574PCF8574A-I2C-Address/

Good video: https://www.youtube.com/watch?v=kQZU8kE3ksU

structure7 commented 7 years ago

Nah. I'd like to keep WeMos for the external antenna option anyhow, and probably rope in some reed switching for faster garage open/close notifications.