After each test there is a one minute cool down period before the next test. One suite of tests consist of the series shown below. Note, under load testing, the battery power should be used to avoid damaging the Arduino board.īelow is the link to the Arduino code that runs in the Arduino Nano or compatible board. If the lead connector is hooked up to the battery power cable, the servo received direct battery voltage. As seen in the picture below, if the servo tester lead is connected to the power connector coming from the Arduino board, the voltage will be 5.0 volts. When using battery power, the voltage going to the servo based on how the jumper is connected. The voltage should be from 5.0 to 8.4 volts (2s Lipo). The other way to power the tester and servo is to use a battery. The voltage with USB is 5 volts to the servo. This is typically just a free standing servo. The tester can be operated with only USB power as long as the load is low. The code has also ran on a Leonardo and a Mega 2560. Below is a picture of the basic tester that was deployed to an Arduino Nano board. To meet those requirements it was decided to develop a tester using an Arduino board and fixture from basic materials. Adjustable loads (Match Servo size and application).
Automated running through a suite of tests while resting between tests.It was decided to build a servo tester that was more than a basic manual knob or cyclic tester.