ServoTester (Center and Test Servos)

Features include:

Accurate Servo Centering
Full Servo Motion Testing (press button)
LED Power on indicator
LED lights up when Servo Motion button is pressed
Power with Battery or ESC/BEC
Option to power over USB (Arduino Nano)

Servo Tester Kit:

ServoTester Kit: https://www.etsy.com/listing/1014305367/center-servos-and-servo-tester-diy-kit
Build video: https://www.youtube.com/watch?v=ceCBQRx9GGo

Wiring for the Arduino Nano

Servo 1 - D8
Servo 2 - D9
Servo 3 - D10
Button D2

3D Printed Case by David Payne:

Case for the ServoTester Kit: https://www.thingiverse.com/thing:4850962

Compiling and Loading to Arduino Nano

It is recommended to use Arduino IDE.

USB CH340G drivers: https://sparks.gogo.co.nz/ch340.html
Select Board: "Arduino Nano"
Select Processor: Atmega 168 or Atmega 328P (kit with red board is Atmega 168)
Select the Port from the tools menu.

Donation or Tip

Please do not feel obligated, but donations and tips are warmly welcomed. I have added the donation button at the request of a few people that wanted to contribute and show appreciation. Thank you, and enjoy the application and project.