Out of another time, the “Cybot” robot was a major step forward in the democratization of robots in 2003. In the form of a bi-monthly booklet available in bookshops, it was sold as a kit to be assembled. During the months several evolutions have allowed to go so far as to be able to program…

In the video is presented the creation of a schema and a typon with the free software Fritzing. The project is a simple adapter between a YM12864 graphic LCD and an I2C MCP23017 control module. Lcd display The model is a YM12864C and its control interface is the parallel bus. I2C module MCP23017 This module…

This project started from the need to check a 3.5″ hard disk backup that was in an external box and that I could no longer use. Unable to mount under Windows or Linux, although detected, it also made a click that made me fear the worst. I bought a simple USB 3.0 Sata adapter for…

The need: For my different projects I need to make prototype circuits without investing in equipment that would only be used rarely. In the different possible solutions there are: draw the circuit by hand, if possible, with a marker directly on the copper plate. Clearly the quality is not there but for very simple small…

This will be my first article on 3D printed objects. With a technical and mechanical background, I started in the world of work with industrial design and the passion for design and 3D has never left me. I recently purchased a Creality Ender 3 printer. I would like to quickly introduce my first creation, a…

The DRV8871 driver from Texas Instruments is a small wonder of compactness and simplicity. Like its cousins, it allows to drive a DC motor in PWM (Pulse Width Modulation). It is reversible, with a Deep Sleep and brake mode and all this for motors from 6.5 to 45V with a peak current of 3.6A. Its…