Pico Setup Instructions

Hardware Setup

1. Connect your Raspberry Pi Pico pins:
   • Button to GP0
   • STEP to GP3
   • DIR to GP2
   • EN to GP4

Software Setup

1. Connect Pico to computer while holding BOOTSEL button
2. Pico will appear as a USB drive
3. Copy main.py to the Pico drive
4. Disconnect and reconnect Pico (without BOOTSEL)

Port Configuration

• Windows: Usually COM3 or COM4
• Linux: Usually /dev/ttyACM0
• Mac: Usually /dev/tty.usbmodem*

Testing

1. LED should blink when code is running
2. Button press should move conveyor
3. Serial communication should show position updates

Troubleshooting

• If motor doesn't move, check EN pin connection
• If position tracking is wrong, check STEP_PER_POSITION value
• If button doesn't work, check PULL_UP configuration

Serial Communication

Motor will respond to these commands:

• "move": Moves to next position
• Response formats:
  • "moving_1": Moving to position 1
  • "moving_2": Moving to position 2
  • "moving_3": Moving to position 3
  • "done": Movement complete