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!
Analog to Digital Conversion
The world is analog. Use analog to digital conversion to help digital devices interpret the world.
Accelerometer Basics
A quick introduction to accelerometers, how they work, and why they're used.
What is a Battery?
An overview of the inner workings of a battery and how it was invented.
First FPGA Project - Getting Fancy with PWM
An initial project using Alchitry's onboard FPGA to manipulate PWM
9DoF Sensor Stick Hookup Guide
How to connect and use the SparkFun 9 Degrees of Freedom Sensor Stick with an Arduino
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!
APDS-9301 Sensor Hookup Guide
The APDS-9301 sensor is an I2C connected luminosity sensor which returns measurements in lux.
Single Supply Logic Level Converter Hookup Guide
The Single Supply Logic Converter allows you to bi-directionally translate signals from a 5V or 3.3V microcontroller without the need for a second power supply! The board provides an output for both 5V and 3.3V to power your sensors. It is equipped with a PTH resistor footprint for the option to adjust the voltage regulator on the low side of the TXB0104 for 2.5V or 1.8V devices.