You’ll learn how to rate knocks, punches, kicks or tosses. Think sports, fitness, or games. How to handle multiple threshold crossings with Arduino

VU meter effect with peak hold and decay You’ll learn how to make your products responsive to music, speech or noise with RGB LEDs and FastLED. Instead of driving LEDs, you could of course also drive vibration motors, servos or pneumatic actuators. After all, audio, once processed, is just data.

Audio input from an amplified microphone You’ll learn how to make your products responsive to music, speech or noise by sampling audio with the highest possible resolution, using a simple input circuit and only a few lines of code.

Audio input from a headphone jack You’ll learn how to make your products responsive to music, speech or noise by sampling audio with the highest possible resolution, using a simple input circuit and only a few lines of code.

Pulse sensor with indicator LED and HD-1900A You’ll learn to display someone’s heartbeat visually and mechanically. While the electronic circuit is usually very straightforward, the “magic” in physical computing projects happens always in the code....

Better dimming and flicker reduction using a 12-bit timer and look-up table You’ll learn to use a precomputed look-up table and changing a microcontroller’s timer, here an Arduino compatible, for larger range and higher-speed pulse...

Better dimming and flicker reduction using a 12-bit timer and look-up table You’ll learn to use a precomputed look-up table and changing a microcontroller’s timer, here an Arduino compatible, for larger range and higher-speed pulse...

Programmable NeoPixel RGB LED ring with FastLED You’ll learn how to create variable effect for indicators or interfaces. How to control animations on a NeoPixel RGB LED ring using the FastLED Arduino library. This tutorial...

Programmable APA102C RGB LED strip with FastLED Learn how to make an Aurora Borealis effect. Northern Lights. How to realise timed animations with APA102C or NeoPixel RGB LED strips using the FastLED Arduino library and...

Joystick colour temperature and dimming control You’ll learn how to control all aspects of light with a single user interface element. Warm. Cold. Bright. Dark. Memory function. How to drive two high-CRI COB LEDs and...