Cover image for Bill of Materials

Bill of Materials

An open-source, burger-shared robot you can build yourself


 4 December 2024   |     1 minute read   |   By Kevin McAleer   |   Share this article on

Here is the Bill of Materials for the version 3 of BurgerBot. This is the base version of the robot, with no additional modules. The drawing module will be added in a later version.

Item Description Quantity Price Total
Raspberry Pi Pico Microcontroller (Raspberry Pi Pico, Pico W, Pico 2, Pico 2 W) 1 $4.00 $4.00
DC Motor N20 150RPM Motors 3-6V 2 $2.00 $4.00
MX1508 H-Bridge Motor Driver 1 $1.00 $1.00
Ultrasonic Sensor HC-SR04P (3.3v version) 1 $1.00 $1.00
Battery Box 4xAA Battery Holder 1 $1.00 $1.00
Wheels 2x Moon buggy Wheels 1 $4.50 $4.50
M3 Sccrews 12x M3 10mm screws 1 $1.00 $1.00
Custom PCB Custom PCB for the Raspberry Pi Pico 1 $10.00 $10.00
Total       $25.50

Additional items you may need

Depending what you already have in your parts bin, you may need to purchase the following items:

  • 4xAA Batteries
  • PLA Filament
  • Raspberry Pi Pico Headers
  • Raspberry Pi Pico USB Cable
  • SG90 Servo Motor (for the drawing version)
  • Bluetooth and Wifi connectivity for the Raspberry Pi Pico W & Pico 2 W versions
  • Solder, soldering flux, wire
  • Header pins for the Motors, Battery input, Servo header

Tools

To build the robot you will need the following tools:

Tool Description
3D Printer to print out the motor mounting brackets
Screwdriver to assemble the robot
Wire Cutters to cut the wires to length
Soldering Iron to solder the wires to the motors and motor driver
Computer to program the Raspberry Pi Pico with MicroPython