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 Peripheral Interface (SPI)
SPI is commonly used to connect microcontrollers to peripherals such as sensors, shift registers, and SD cards.
Logic Levels
Learn the difference between 3.3V and 5V devices and logic levels.
AST-CAN485 Hookup Guide
The AST CAN485 is a miniature Arduino in the compact form factor of the ProMini. In addition to all the usual features it has on-board CAN and RS485 ports enabling quick and easy interfacing to a multitude of industrial devices.
First FPGA Project - Getting Fancy with PWM
An initial project using Alchitry's onboard FPGA to manipulate PWM
SparkFun Inventor's Kit for Photon Experiment Guide
Dive into the world of the Internet of Things with the SparkFun Inventor's Kit for Photon.
LSM9DS1 Breakout Hookup Guide
A hookup guide for the LSM9DS1, which features a 3-axis accelerometer, 3-axis gyroscope, and 3-axis magnetometer. It's an IMU-in-a-chip!
Pyboard Hookup Guide
Getting started with the Pyboard using MicroPython.
OpenLog Artemis Hookup Guide
How to use and re-program the OpenLog Artemis, an open source datalogger. The OLA comes preprogrammed to automatically log data. The OLA can also record serial data, analog voltages, or readings from external Qwiic-enabled I2C devices. Some of these Qwiic-enabled devices include GPS/GNSS modules, pressure, altitude, humidity, temperature, air quality, environment, distance, and weight sensors.