Using microcontrollers is amazing; we are currently using circuit python and the Lolin S2! They can be used to control many different and exciting processes in science, engineering, and silly stuff around the house. However, the problem is that these devices have so little power to drive devices. Jeremy built a cool simple circuit to amplify the output of the microcontroller and use it to drive a low impendance circuit.

Here shows it being tested with half of it on the breadboard and the other half on the circuit card.