Hi, everyone.
I am re-building my training rotoped and I want to connect it to Home Assistant.
Part of the rotoped is also heart-beat sensing - on both handles the device uses conductive pads to measure heart rate.
The circuit inside is a big blob, so I don't have any way how to connect to it...
I have a need to turn off a load after set duration like 3min(have used different value of Capacitor and resistor) I am using a NE555 IC and going ahead with designing as shown below, my application in breadboard is working but I'll to press switch each time the off timer is needed to activated...