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!
Logic Levels
Learn the difference between 3.3V and 5V devices and logic levels.
Series and Parallel Circuits
An introduction into series and parallel circuits.
Data Types in Arduino
Learn about the common data types and what they signify in the Arduino programming environment.
First FPGA Project - Getting Fancy with PWM
An initial project using Alchitry's onboard FPGA to manipulate PWM
SIK Keyboard Instrument
We can use the parts and concepts in the SparkFun Invetor's Kit to make a primitive keyboard instrument.
Flex Sensor Hookup Guide
An overview of the flex sensor - a bendable variable resistor. Plus, example circuits and Arduino code to get you started!
MAX30105 Particle and Pulse Ox Sensor Hookup Guide
The SparkFun MAX30105 Particle Sensor is a flexible and powerful sensor enabling sensing of distance, heart rate, particle detection, even the blinking of an eye. Get ready. Set. Shine!
Qwiic dToF Imager (TMF882X) Hookup Guide
Getting started with the AMS dToF imagers (TMF8820 and TMF8820).