For use in DIY homebrew radio equipment such superheterodyne single/double conversion receiver, SDR, HAM QRP transceivers or RF generator.

Simple device to control and initialize DALI lamps.

A simple 8x32 LED matrix alarm clock.

Displays your pulse rate, blood oxygen level and a moving graph of each heart beat, the photoplethysmogram (PPG).

Minimalist cars race with a strip of smart LEDs and two switches.This project has evolved and now has its own website: www.openledrace.com

In a previous project I developed a GPS data logger for RC aircraft but I did not have feedback on the receiver. So I modified the prototype

Meet the little black rover that can do many things in your house without bumping into a single thing!

Smarter Home Energy Use with Open Source and Cheap Sensors.

I need to control the humidity and temperature of some carnivorous plants in the greenhouse, this requires constant temperatures and humidit

A low cost air quality monitoring device created with an aim to detect pollution hotspots caused due to traffic jams or factory emissions.

Control your AC from across the room or across the world

An open source kit to build a walking smart robot dinosaur.

Get your essential appliances off the grid with just one solar panel

Add sensors in a beehive to follow bees life.

Use the cheap Fiagro TGS4161 Sensor to monitor CO2

Simple data logger that stores electrical data (voltage, current, power, energy, etc.) in an SD card, with timestamp for later analysis.

Use your android smartphone to open and close your garage door reliably (Under Development)

Aquarium monitor with automation, Web GUI & IoT. Daisychain units can control multiple tanks all from the one master unit.

This Arduino-based machine will always prepare perfect Argentine mate (traditional infused drink).

A touchscreen in the wall that allows you to control each and every LED light in your ceiling independently and phone controllable!

Telescope or camera tracking system for astrophotography.

A cube with all the necessary sensors, suitable for a wide range of applications like agriculture. Know the land beneath you!

Build an "invisibe" expression pedal for your guitar with MCP41010 and Arduino Nano. It's awesome and simple. May the funk be with you.

A difficult code with a try to display waveform on a small screen with precisions. Volts-time, frequency, duty cycle and divisions.