Vending Machine UI Light Module
Budget: $30 – $250 USD
I already have a Raspberry Pi driving a vending machine and now need a very simple user-interface addition: a single green indicator light that turns on whenever the machine is ready to vend.
Here’s what I’m looking for:
• Hardware guidance (GPIO pin selection, resistor value, wiring diagram) for the green LED.
• Clean, well-commented code added to my existing Python script so the LED comes on steadily—no blinking, no timeout—whenever my “vending enabled” flag is true.
• Brief instructions on how to deploy the updated script and test the light in place.
The rest of the system is already operational, so please keep changes minimal, use standard RPi.GPIO (or gpiozero) calls, and make sure your solution is easy for me to drop into the current setup.
Here’s what I’m looking for:
• Hardware guidance (GPIO pin selection, resistor value, wiring diagram) for the green LED.
• Clean, well-commented code added to my existing Python script so the LED comes on steadily—no blinking, no timeout—whenever my “vending enabled” flag is true.
• Brief instructions on how to deploy the updated script and test the light in place.
The rest of the system is already operational, so please keep changes minimal, use standard RPi.GPIO (or gpiozero) calls, and make sure your solution is easy for me to drop into the current setup.
Related categories:
Python
Electronics
Software Architecture
Arduino
Circuit Design
Software Development
Raspberry Pi
Embedded Systems