Author Topic: Door open timer switch thingymajig  (Read 5008 times)

Re: Door open timer switch thingymajig
Reply #30 on: March 26, 2022, 09:33:40 AM
* A WiFi doorbell with unlimited range (using repeaters) to work as an intercom at work. Added benefit was the chime was the imperial march from Star Wars.


how did you do this?  I'm interested in the same thing for work :-)

two different door bell type buttons playing different tones would be even better.... one output needs to be loud too :-o


that way we can have one tone for sutomers pressing a button, and another tone for someone in the office pressing a button

  • Offline zpyder

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Re: Door open timer switch thingymajig
Reply #31 on: March 26, 2022, 10:06:20 AM
Used esp8266 units with ESP-NOW. The ESP-NOW is a library that allows unit to unit data transfer without needing to hook up to any WiFi networks.

Essentially had a doorbell button unit, and a chime unit. And then I had an intermediary unit. Button sent to intermediary, when intermediary got a ping it then sent one on to the chime unit.

There is no reason you could not link any number of intermediary units, forming a chain of however long you need. Only limiting factor is power.

Doorbell button used a nodemcu 18650 battery module in a weatherproof box, and I enabled deep sleep mode on it. Got about a weeks battery life out of it as the nodemcu module had a bit of a drain compared to maybe using some other kind of esp8266 power option. All other units were usb powered.

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