An open source Rain Sensor and controller
Designed to be coupled to an irrigation controller, a weather station or motorized curtains and rolling shutters, it shuts down…
Print with Chocolate in two colours with 3Drag Choco Big Dual Extruder
Let’s create a new evolution for our 3Drag printer, with a dual extruder for the printing of chocolate items of…
An Electric Speed Control for DC motors
It allows to change the revolutions per minute in any brushed motor that is powered by 12 to 35 Vcc,…
The BF 15+15W open source power amp
A compact stereo amplifier that may be used at home as well as in the car, and also to substitute…
The Strato Pi UPS board
Makes Raspberry Pi suitable to be used in “professional” environments, sports a power source, an UPS, a RTC clock, a…
Analyzing Semiconductor with a set of simple tools
A set of tools that – for an affordable price and without difficulties – is capable of identifying and verifying…
A RTC SHIELD for Arduino and Raspberry Pi
Let’s use a new Real Time Clock by Microchip, by making it available on a shield for two prototyping boards.…
TORPEDO: an all-purpose switched-mode power supply
Having explained the theory, let’s see in practice the project of the SEPIC power supply. In this post we discussed…
Octopus, a “tentacular” shield for Arduino and Fishino
A shield that provides 16 digital or PWM I/O using a single Arduino/Fishino I²C bus. Ideal for managing multi-color LED…
Keychainino: a programmable, playful Key Ring
Based on Arduino, it performs electronic light games by piloting a LED matrix thanks to a special multiplexing mode. In…