Control points, semaphore signals and other accessories using servos.
There’s 4 types that have different options
- Point – Has 4 speed options
- Semaphore Signal – Can simulate drop bounce and pull up hesitation
- Sweep – Has 4 speed options (Can be used for gates)
- On\Off – Can be used with N Channel mosfets
Parts:
- Arduino UNO
- LCD Keypad Shield (16×2) (I used this https://www.dfrobot.com/product-51.html)
- MCP23017 I/O Port Expander (I used these https://www.dfrobot.com/product-2002.html)
- PCA9685 PWM Servo Driver
Switches can be ON-ON or ON-OFF, they just need to be latching.
I used SG90 servos as they’re cheap and common.
Code, more details and instructions on GitHub, includes STL’s for mounts – MRSC
