SD-G3 2021
Part list
HC-06 Bluetooth module
4-way mini slide switch (optional)
Arduino Nano board
5 LEDs 3mm (optional, with related resistors R6-7-8-9 and R1)
Step Down module 12-24V to 9V
Stepper Driver (Pololu like or LV8729)
2 Optocoupler (TLP621 or equivalent, 4 pins)
Stereo jack for Camera wiring (4 pins)
RJ11 socket for motorized stacking rail)
NPN Transistor (2N2222 or equivalent)
Slide switch for power ON/OFF
DC Power socket
Limit Switches (Normally Closed type, to be mounted on rail)
RJ11 Rail connector jack pinout
1-2 stepper coil B
3-4 stepper coil A
5 Limit Switches signal
6 GND
Download files, click here (Arduino code, PCB Gerber and Android apk of the App)