LED Gumball Machine
Contributors:
Nate
Nate 
Resources and Going Further
We hope you've enjoyed reading about our LED dispensing gumball machine. If you liked this one, there's tons more!
Serial Communication
Asynchronous serial communication concepts: packets, signal levels, baud rates, UARTs and more!
Pulse Width Modulation
An introduction to the concept of Pulse Width Modulation.
Raspberry gPIo
How to use either Python or C++ to drive the I/O lines on a Raspberry Pi.
Monitor Sensor Data from Anywhere
Using WiFi to send sensor data from an ESP32 to a WiFi network and be able to read it from an IoT Dashboard from anywhere in the world.
VL6180 Hookup Guide
Get started with your VL6180 based sensor or the VL6180 breakout board.
9DoF Razor IMU M0 Hookup Guide
How to use and re-program the 9DoF Razor IMU M0, a combination of ATSAMD21 ARM Cortex-M0 microprocessor and MPU-9250 9DoF-in-a-chip.
micro:bot Kit Experiment Guide
Get started with the moto:bit, a carrier board for the micro:bit that allows you to control motors, and create your own robot using this experiment guide for the micro:bot kit.
Qwiic Human Presence Sensor (AK9753) Hookup Guide
How to get started with your Qwiic enabled AK9753 Human Presence Sensor.