Hacker News Reader

Those little /ducks/ Amazon iot buttons are fun for this. I wired one up to their connect service to make a voice call. I would let my kids troll me with it or take it to work to clandestinely make calls to myself when it was advantageous to receive one.

View on HN

I would love to see open source copies of those. Apparently they use NO power unless you press their buttons which means they can last for years.

100%. Plus they could be way cheaper (i think).

I got some Aqara buttons and switches from cloudfree.shop, they're closed-source but local network (Zigbee) only—combined with Home Assistant, which is open source, I think this is what you want!

Reply on news.ycombinator.com