Low cost Smart Switch

I think I just foud what I needed!

https://github.com/M-o-a-T/owslave

This is code for OneWire slave, working for the Attiny13.

Some tests in low voltage confirm that the hardware is ok !

Here is the setup with 1 switch and a 12V car light bulb.

For now, the firmware just blink the relay. The next big step is to implement the OneWire slave and the current measurement.

A surprise in the mailbox today !

80 PCBs ! still waiting for some caps ans resistors...

It's super small !

PCB have been ordered, 17USD for 80pcs! (At https://www.seeedstudio.com/fusion_pcb.html )

8 boards by PCB, 10 PCB.

Some change has been made:

• Change for a bigger 5V regulator (100ma from 12 to 5)
• Add milling slot for insulation
• Open Source Hardware logo

Github repository is up to date : https://github.com/thomasfla/onewire-smart-switch