LED Gumball Machine

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Contributors: 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 Peripheral Interface (SPI)

SPI is commonly used to connect microcontrollers to peripherals such as sensors, shift registers, and SD cards.

Series and Parallel Circuits

An introduction into series and parallel circuits.

Raspberry Pi SPI and I2C Tutorial

Learn how to use serial I2C and SPI buses on your Raspberry Pi using the wiringPi I/O library for C/C++ and spidev/smbus for Python.

First FPGA Project - Getting Fancy with PWM

An initial project using Alchitry's onboard FPGA to manipulate PWM

QRD1114 Optical Detector Hookup Guide

Use this IR LED/phototransistor fusion to sense objects in close proximity or even the color of a surface!

Qwiic VR IMU (BNO080) Hookup Guide

Figure out how things are oriented with the robust 9 degrees of freedom (DOF) BNO080 IMU. Maybe even make your own virtual reality (VR) applications if you're feeling savvy.

SparkFun Photodetector (MAX30101) Hookup Guide

The SparkFun Photodetector - MAX30101 (Qwiic) is the successor to the MAX30105 particle sensor, a highly sensitive optical sensor. This tutorial will get you started on retrieving the raw data from the MAX30101 sensor.

Getting Started with Machinechat

Organize and display your data with SparkFun's Artemis OpenLog and MachineChat's JEDIOne!