I have 2 small devices that have their own power supplies. I want to combine the two boards into a single housing/device.
One of the devices uses a 3.7 volt 130mAh battery for power. The second uses 2 AAA batteries (1.5 volts each). What would be the best way to use only one power supply to power them both (if that is possible)?
I do understand that using a single power supply would drop the amount of time that the 2 devices could operate as compared to each using its own power supply. That is acceptable.