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...
Colour finder and sorter with ams TCS34725 and HD-1900A You’ll learn how to automatically identify and sort colours reliably via their Euclidean distance. How to read a colour sensor and drive a servo with Arduino...
Thermochromic display You’ll learn how to make a calm technology display. How to use thermochromic film with an N-channel MOSFET driven Arduino-based resistor-heater. While the electronic circuit is usually very straightforward, the “magic” in physical...