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16-leds-puzzle

A puzzle based on an ATtiny204 in which you have to press the right buttons to light up all the LEDs.

adjustable-load

An adjustable load that provides a constant-current load for testing power supplies and batteries.

alphanumeric-display

An eight-character alphanumeric LED display with an I2C interface.

arduino-board-index

Technoblogy package lists for the Arduino v1.6.4+ Board Manager

atmegabreadboard

For programming a stand-alone ATmega328 or ATmega168.

attiny10-pov-pendant

A miniature pendant based on the ATtiny10.

attiny10-thermometer

A thermometer based on an ATtiny10 that displays the temperature on an LED.

attiny10core

For programming the ATtiny10/9/5/4.

attinycore

Arduino core for ATtiny 1634, 828, x313, x4, x41, x5, x61, x7 and x8

avr-guidance

A guide to best practices when using the Arduino IDE to program AVR microcontrollers

big-time

A giant digital clock featuring four large LED displays.

compact-tft-graphics-library

A graphics library using SPI that supports a variety of different colour TFT displays.

continuity-tester

A simple continuity tester, based on an ATtiny85 and a piezo buzzer.

five-leds-puzzle

Press the buttons to light up all the LEDs

frequency-probe

A handheld tool that gives a visual indication of the frequency or voltage at the probe.

gamebone

A simple handheld electronic game based on an ATtiny85.

hardware

Documentation and resources for Electrosmith Hardware

i2c-detective

Identify I2C devices from a database of the most popular I2C sensors and other devices

i2c-gps-module

i2c-sd-card-module

An SD-card module that allows you to write to and read from files on an SD card using I2C.

i2s-speaker

An expansion board for a QT Py microcontroller to provide a 3W stereo power amplifier output from I2S.

illuminated-button-matrix

A 4 x 4 matrix of illuminated pushbuttons with a two-wire I2C interface.

infnoise

The world's easiest TRNG to get right

ir-remote-wand

A simple universal remote control based on an ATtiny85.

lcd-clock

A low-power LCD clock based on an AVR128DA48.

lisp-arm-assembler

An ARM Thumb assembler written in Lisp.

lisp-badge

A handheld computer programmed in Lisp with a self-contained keyboard and display.

lisp-badge-le

A self-contained low-power computer with its own display and keyboard that you can program in Lisp.

lisp-riscv-assembler

A RISC-V assembler written in Lisp.

lisp-star

A star-shaped pendant that you can program in Lisp