Pimoroni Keybow 2040 (CircuitPython programmable macro keypad) with Adafruit STEMMA Speaker

KY-008 laser diode output at 1.9V to 4.2V

Infrared remote shutter release for Sony NEX using Adafruit Circuit Playground Express (CPX) board

Simple audio sample player on Circuit Playground Bluefruit

Speak & Maths, cleaned, repaired and circuit bent - ribbon controller for pitch bend

GurgleApps Word Clocks - new snow background

GurgleApps Word Clock - oscilloscope view of capacitive touch

GurgleApps Word Clock - capacitive touch demonstration

Pi Pico capacitive touch test on the GurgleApps Word Clock

GurgleApps Word Clock - seasonal Halloween background test II

GurgleApps Word Clock - testing seasonal Halloween background

GurgleApps Word Clock - testing minutes digits background

GurgleApps Word Clock - testing digital rain background and ambient light sensor

Testing an 8x8 RGB LED matrix with supply voltages between 2.3V and 5.0V

Word typing CircuitPython program on the Adafruit PyRuler

MicroPython / CODAL neopixel bugfix testing on micro:bit V2 and Kitronik Zip Halo HD

Speak & Spell soft power button exploration showing START and POWERDOWN lines

Compiling and Debugging C++ for micro:bit in Visual Studio Code on Rapsberry Pi 5

MicroPython / CODAL neopixel bug on micro:bit V2

Clock and stopwatch in MicroPython for the Kitronik ZIP Halo HD

Clock with background falling rainbow effect on Kitronik ZIP Halo HD in MicroPython

Clock, stopwatch and rainbow effect on Kitronik ZIP Halo HD in MicroPython

PWM control of LED Christmas Lights with questionable use of a voltage regulator on UM FeatherS2

Creating a synth patch with CircuitPython synthio on Pimoroni PGA2350

Marty the Robot - servo current measurement - plotting in Scratch

Comparing RP2040 ADC with Microchip MCP3208 for low voltages using Pi Pico W on Cytron EDU PICO

Measuring servo current for position holding using an EDU PICO to compare RP2040 ADC with MCP3208

Measuring servo current for position holding using an EDU PICO to compare RP2040 with MCP3208

Examining voltage drop for a micro servo powered by an Arduino UNO R3 using USB and 2.1mm jack

Examining current vs control pulses for a servo and effect of capacitors using an Arduino UNO R3

Cytron Maker Nano RP2040 powering test with LEDs, MQ-3 gas sensor and servo using laptop USB2 port

Adafruit Feather nRF52840 Express powering test with LEDs, MQ-3 gas sensor and servo using LiPo

Adafruit Feather nRF52840 Express powering test with LEDs, MQ-3 gas sensor and servo using USB2 port

BBC micro:bit V2 powering test with LEDs, MQ-3 gas sensor and servo using laptop USB2 port

BBC micro:bit V1 powering test with LEDs, MQ-3 gas sensor and servo using laptop USB2 port

Raspberry Pi Pico W powering test with LEDs, MQ-3 gas sensor and servo using laptop USB2 port

Arduino UNO R4 WiFi powering test with LEDs, MQ-3 gas sensor and servo using Rasp. Pi 15W USB-C PSU

Arduino UNO R4 WiFi powering test with LEDs, MQ-3 gas sensor and servo using 7.5V on 2.1mm jack

Arduino UNO R4 WiFi powering test with LEDs, MQ-3 gas sensor and servo using laptop USB2 port

Arduino UNO R3 powering test with LEDs, MQ-3 gas sensor and servo using 7.5V on 2.1mm jack

Arduino UNO R3 powering test with LEDs, MQ-3 gas sensor and servo using laptop USB2 port

Walnut name plate with flexible filament LEDs and Cytron Maker Nano RP2040 constant current circuit

Testing voltage drop from USB port and leads to the 5V pin on a Cytron Maker Nano RP2040

Cytron Maker Nano RP2040 with constant current circuit driving six filament LEDs #circuitpython

Cytron Maker Nano RP2040 with constant current circuit driving filament LED with PWM #circuitpython

Logic Gate Simulator in MakeCode Arcade on new Kitronik ARCADE for micro:bit with Cytron EDU PICO

Logic Gate Analyser on Cytron EDU PICO and MH-EDU-Electronics LogicBoard #CircuitPython

Larson Scanner on two MH-EDU-Electronics LogicBoards

Oscilloscope on the oscillator on the MH-EDU-Electronics LogicBoard

Oscillator on the MH-EDU-Electronics LogicBoard

Full Adder on the MH-EDU-Electronics LogicBoard

Laser Harp test using Cytron Maker Pi Pico and CircuitPython synthio #circuitpython

EMG using Arduino UNO R4 WiFi and BioAmp EXG Pill from Upside Down Labs running ClawController

Audio Oscilloscope using Pimoroni Galactic Unicorn with electret microphone meets Korg Volcas

Audio Oscilloscope using Pimoroni Galactic Unicorn with electret microphone meets Yub Nub

Guitar Tuner using Pimoroni Galactic Unicorn with electret microphone with testing bass and acoustic

Audio spectrum analyser with Teenage Dirtbag on Pimoroni Galactic Unicorn with electret microphone

Audio spectrum analyser with sine sweep using Pimoroni Galactic Unicorn with electret microphone

Volca Bass vs Guitar Tuner using SparkFun Sound Detector and Pimoroni Galactic Unicorn

Guitar Tuner using SparkFun Sound Detector and Pimoroni Galactic Unicorn (RGB LED display)