Abstract— Abstract—Electronics is the most sensitive part of any project as the minor difference can result in failure. So, the electronic component must be tested first, before they are used otherwise they, might be the reason for project failure. It is a tedious work to debug the circuit and confirm whether the circuit is creating the problem or the electronics component if the project produces undesirable results. Thus, this paper describes the idea of the checking the electronics components. Electronics Tester is built around the Arduino mega as a micro-controller and a Nokia LCD 5110 graphical LCD. The system is capable of testing digital IC’s up to pin 20, 555 timer IC, IC 741 operational amplifiers, Resistor, Capacitor, and Transistor.
Keywords:—Nokia LCD 5110, Digital IC, 555 timer IC, 741Op-amp Electronics Tester, RJ45 cable, Onboard testing