Is it possibly to use a Bluetooth receiver as an on/off switch in a circuit board?
Ideally, I would set the Bluetooth receiver into a low energy/sleep mode and use it simply as an on/off switch on a device. There is a small battery connected to the circuit board and an LED light at the other end, just to test if this will work.
Ideally it works like so:
Android/iPhone sends signal to Bluetooth receiver Bluetooth receiver accepts the signal, then the LED light turns on/off I know many people use bluetooth devices to maintain a constant connection with their phone and/or constantly feed information, however this isn't my intention.
I simply want to use it as an on/off switch that my phone can communicate with at all times.