Mini Servo Tester

grabcad

A mini servo tester based on a cheap OLED display from Banggood and an Arduino Nano. The case is 3D printed from PETG. The servo routines use the hardware timers only for pulse generation and so therefore does not have the usual servo "jitter" found in Arduino projects. The display routines are written by "ceptimus". If either of the buttons is pressed at power up the unit will enter a continuous test mode sweeping the servo from 1mS to 2mS pulses until a button is pressed again at the end of the sweep. Then the unit will enter manual control where the left button will reduce the pulse width and the right button will increase the pulse width. Both buttons pressed simultaneously will centre the servo back at 1.5mS.