Building a Servo Tester With Arduino

I’m an R/C model builder and having to choose some servos to install in a glider some time ago i searched online about any project useful to check a servo before to use it, but i didn't find anything really useful for my purpose so i decided to make my own solution.

My idea is quite simple: if the movement of a servo is smooth, without strange noises and the power consumption is consistent with the manufacturer's data or with the consumption of another similar servo (analog or digital), then the servo has no defects symptoms.

So i've decided to use a INA219 ammeter module, a TFT color display (128x160px) and an Arduino Nano (but every Arduino is fine) and allows to do 3 kind of tests:

1. Manual: to test smoothness and noises
2. Automatic: to test power consumption of a servo
3. On board system: to estimate the overall consumption of the electronics on board the model (RX + servos) and choose the right battery to use

In this picture you can see the main components.

Some resistors and buttons complete the project and the total cost should be less than 15-20$

You can find the project including schematic, PCBs and program at: https://github.com/IWILZ/Servo-Tester-Arduino

Have fun!