Current Simulator

This device is designed to simulate a 4 to 20 milliamp analog sensor. I had the idea for this device while trying to debug an issue with an analog sensor. I had no way to simulate a current draw to see if the input for the sensor was actually working. So I built this device to be able to do just that. The function of the device is really simple: Connect the two terminals on top of the device to the system you would like to test, and then as you turn the knob to the right the current increases from 0 to 20 milliamps.

The PCB was designed using EasyEDA. This is actually the first pcb I have ever designed. I can definitely vouch for their software being easy to use. It only took me one weekend to finish designing the PCB. The PCBs turned out great and I will defiantly consider making PCBs for my projects more often.