Hello,
my mom asked me for a circuit that will turn her iron off when she's not using it and maybe check the water level.
I came up with two contacts on the iron "parking" pad and classic BC547 circuit for water level sensing.
Now I need to develop the code and I need help..
so basically I need the arduino (I actually thought about using digispark) to check if the water level sensor is HIGH (water level full) and if it's not to play some tones for catching your attention. Then you would need to lift the iron off the pad to start the code ( if sensing line is LOW..) and if you wouldn't pick up the iron again for maybe 15 minutes it will turn off the power.
I came up with some code but this really looks diffcult to me.
I made a PCB with H-bridge for bistable relay (to turn off the power).
Thanks so much ,
Tomas