Board v2 available at GitHub Today I want to share with you the history of the development of a device for controlling a multi-apartment intercom using the Zigbee protocol.
Once upon a time I had an automatic doorphone opener based on: ESP8266, a module for two relays (16A) and a transistor with a strapping.
All this was collected on a bunch of wires and snot made of hot melt glue and looked something like the second photo.
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