Testing DC supplies can be done in many ways, from connecting an actual load like a motor, to using a dummy load in the manner of a big resistor. [Jasper Sikken] is opening up his smart tester for … ...

The tester only uses 24V, but for the projects he’s building, that’s close to the operation in the real circuits. He does have a traditional tube tester, but it uses 100s of volts which is a ...

Some of the parts you will require include an Arduino Mega 2560, 2.4 inch TFT touch Screen LCD with inbuilt SD Card Slot, 4GB MicroSDHC, 20 Pin ZIF Socket and others.