LED Gumball Machine
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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.
Motors and Selecting the Right One
Learn all about different kinds of motors and how they operate.
How to interpret hex numbers, and how to convert them to/from decimal and binary.
MAG3110 Magnetometer Hookup Guide
Get started with the MAG3110 3-Axis Magnetometer and learn how to make your own digital compass that senses the Earth's magnetic fields.
MLX90614 IR Thermometer Hookup Guide
How to use the MLX90614 or our SparkFun IR Thermometer Evaluation Board to take temperatures remotely, over short distances.
Qwiic IR Array (MLX90640) Hookup Guide
The Melexis MLX90640 contains a 32x24 array of thermopile sensors creating, in essence, a low resolution thermal imaging camera. In this guide, we’ll go over how to connect your Qwiic Infrared Array with MLX90640 and get it communicating with Processing to produce a nice thermal image.