pxt-ucl-junkrobot

A PXT package for University College London made junk-robot

Package is meant to work with:

• 28BYJ-48 Stepper motors
• HC-SR04 Ultrasonic sensors

Pin connections for stepper motors and ultrasonic sensors

• Left Motor

  • micro:bit pin - ULN2003 driver
  • PIN 1 - IN1
  • PIN 7 - IN2
  • PIN 6 - IN3
  • PIN 0 - IN4

• Right Motor

  • micro:bit pin - ULN2003 driver
  • PIN 2 - IN1
  • PIN 13 - IN2
  • PIN 14 - IN3
  • PIN 15 - IN4

• Front Ultrasonic Sensor

  • micro:bit pin - HC-SR04 pins
  • Pin 8 - Trigger
  • Pin 9 - Echo

• Side Ultrasonic Sensor

  • micro:bit pin - HC-SR04 pins
  • PIN 12 - Trigger
  • PIN 6 - Echo

Note

Use a separate battery pack to power the motors and sensors * four AA battery pack will suffice

Also please use a common GND when connecting the electronic circuit

Supported targets

• for PXT/microbit

License

MIT