Here’s a useful tool for testing both power supplies & batteries, a dummy load. This unit is rated up to 60W, at voltages from 1v to 25v, current from 200mA to 9.99A. This device requires a 12v DC power source separate from the load itself, to power the logic circuitry.
OK, a few revisions have been made to the water management PCB, mainly to reduce the possibility of the brushed DC motors in the water pumps from causing the MCU to crash, with the other changes to the I/O connector positioning & finally upgrading the reverse blocking diode to a
The quickest project from inception to working PCB yet: From inception to a working PCB took only 4 hours! This is a miniature stereo audio amplifier, 0.5W per channel, that can be run from any voltage between 4-12v DC. As usual, all the Eagle project files are available for download