SBG-PID

[ZOUjiarui]

I think they're connected.

[ZOUjiarui]

Get this chart from the Arabs.

[bgs]

The common conductor of the circuit is a plus. A negative voltage stabilizer is needed.

[Emersonpaz]

TL431 would be an option.
After all, the circuit works someone concluded?

[ZOUjiarui]

And a sascho1.

[ZOUjiarui]

[ZOUjiarui]

[ZOUjiarui]

[ZOUjiarui]

Which version can exclude iron?

[GeoMax]

The sas1project.png (schematic) will not work. The circuit diagram has errors within the timing circuit! The PCB I have not checked.... it might be correct.

[surfdetector]

No worries , I thought that was the reason,
just thought I would mention it for other people making the project, I'm still waiting some parts.

@6666
Did you ever complete this project?

[ZOUjiarui]

I read in the Iranian forum that someone said the sketch was correct, and I found some differences in it, which I hope will be useful.

[ZOUjiarui]

I hope someone can make it.

[ZOUjiarui]

https://drive.google.com/file/d/19I9...w?usp=drivesdk
A video of sascho2

[ZOUjiarui]

Upload the original sketch again for easy viewing