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!

Pulse Width Modulation

An introduction to the concept of Pulse Width Modulation.

Digital Logic

A primer on digital logic concepts in hardware and software.

Alternating Current (AC) vs. Direct Current (DC)

Learn the differences between AC and DC, the history, different ways to generate AC and DC, and examples of applications.

Getting Started with LTspice

LTspice is a high performance SPICE simulator, schematic capture and waveform viewer with an impressive library of passive devices. Over 1000 models are included in the download but you can also add third party models.

ADXL337 and ADXL377 Accelerometer Hookup Guide

How to get started using both the ADXL337 and ADXL377 3-axis accelerometers with analog outputs.

Bark Back Interactive Pet Monitor

Monitor and interact with pets through this dog bark detector project based on the Raspberry Pi!

SparkFun Qwiic Digital Temperature Sensor - TMP102 Hookup Guide

Get started using your SparkFun Digital Temperature Sensor - TMP102 (Qwiic) with this Hookup Guide!

SparkFun GPS Dead Reckoning NEO-M8U Hookup Guide

The u-blox NEO-M8U is a powerful GPS units that takes advantage of untethered dead reckoning (UDR) technology for navigation. The module provides continuous positioning for vehicles in urban environments and during complete signal loss (e.g. short tunnels and parking garages). We will quickly get you set up using the Qwiic ecosystem and Arduino so that you can start reading the output!