... I'm back... Unfortunately, health and other concerns prevented me from doing so... But now things are back to almost the same as before...
Before I invest a lot of time (and money) in a new mini-project, I would rather ask the experts here whether it is that easy. Better ask then sorry... or not?!
Task:
Recording of the oil consumption of a heating system, determined via the on-time of the solenoid valve, after the time/oil quantity factor has been determined by "litering" (as long as the pressure and nozzle remain the same, this is fairly accurate).
Idea:
- Record the duty cycle of a solenoid valve with a resolution of 1/10 second
- Calculating the recorded time with the calibration factor
- Show result on small OLED (continuous)
- Subtract result from a stored (Tank-level / filling) value and display (continuously)
One possibility would of course be to have a DSL connection installed on the property. But that costs around €30/month just for that. So pretty stupid. Another option would be a DCF receiver. But I don't know if this can be implemented at all.
As you can see, there are a lot of uncertainties that I would like to brainstorm with you about; Of course, further ideas are always welcome...