💬 MyThermostat

[openhardware.io]

https://www.openhardware.io/view/683/MyThermostat

[alowhum]

Whoa, what an amazing job! You should send a pic to the original manufacturer, perhaps they'd enjoy seeing your conversion.

[Gerator]

Thanks. It would be nice!

[kimot]

How do you solve a situation where a SSR breakdown occurs and you are hunderts km away from home?
I think some classic relay is necessary in this application to handle error conditions.
Similarly, measuring the temperature in the blast near SSR is not very accurate.

[Gerator]

@kimot I am not handling that situation. I'm taking for granted ssr will do his job. Maybe there's some ssr safety topic I'm unaware? Suggestions for a v3.0 are welcome.

About the temperature measuring... I use two sensors. The one in the board protects electronics from temperatures beyond design (60°C). It's near the ssr because the ssr's derating curve is the most limiting condition.
The control sensor is placed in the bottom of the heater. It connects to the board through a 3 pin header connector.