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!
Voltage, Current, Resistance, and Ohm's Law
Learn about Ohm's Law, one of the most fundamental equations in all electrical engineering.
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.
SparkFun Troubleshooting Tips
Not working as expected? In this tutorial, we will be exploring a few general troubleshooting tips and possible solutions that frequently come up with SparkFun's Technical Support.
Si7021 Humidity and Temperature Sensor Hookup Guide
The Si7021 humidity and temperature sensor is an easy to use, digital, low-cost sensor to aid you in all your environment sensing needs.
micro:bit Educator Lab Pack Experiment Guide
A quickstart guide for the micro:bit educator lab pack.
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.
Getting Started with the Autonomous Kit for the Sphero RVR
Want to get started in robotics? Look no further than the SparkFun autonomous kit for the Sphero RVR! Whether you purchased the Basic or Advanced kit, this tutorial will get you rolling...