Microsteppings and Interrupts with Arduino 2560

Today on Electroschematics.com

Stepper motors are mostly used for precise motion control of structures or axes for a distance. But what happens if we want to control time? We can answer this question with the bare motor rotation, and a more complex software. For this project I am using the Arduino Mega 2560

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Prusa I3 Aluminium Plus

Recently, I had the chance to use the latest model manufactured by Geeetech, i.e. the 3D Printer Prusa I3A Plus. They launched this new version on the market focusing on the most evident innovation: the external control box that embeds all the electronics; Power unit, front panel LCD and rotating switch, SD Card slot, main board controller and motor controllers, and the switching power unit.

Read the full review on electroschematics.com

Digital Potentiometer Arduino Shield Reviewed by Freetronics.com

Screen Shot 2015-03-24 at 07.50.40We wish to thank the friends of Freetronics (Australia) for the review of the Digital Potentiometer Arduino Shield on their great blog.

The shield PCB or full assembly version can be bought on Tindie. for 10$ (or less, follow the discounts and promotions). See the Freetronics full blog post here.

Digital Potentiometer Arduino Shield on Electro Schematics

Screen Shot 2015-03-16 at 17.54.02Full description of the Digital Potentiometer Arduino Shield on the new article on Electro Schematics electronic site. The article can be found in the Arduino section.

Includes downloadable sketches of the programs shown in the video below, a complete description of the project, schematics, PCB layout and the digital potentiometer device data-sheet.

The shield PCB or full assembly version can be bought on Tindie. Follow the full description on the product page.

Daisy-chained shift registers and 7-Segments display on Electroschematics.com

Another open hardware project published in two parts on electroschematics.com few days ago. Read part 1 and part 2 articles of the project.

The first article introduces a small board that, using four daisy-chained shift registers, enhances Arduino with a general-purpose extension of up to 32 output ports; it works on most Arduino boards and Arduino-compatible devices. The second article completes the discussion introducing a practical application: controlling four 7-Segments LED displays with only three Arduino Pins, simply using the daisy-chained shift registers.

The PCB only or the fully assembled circuits are available on Etsy.com and Tindie.com, while more technical details can be read on the Arduino Kits section of the Projects in the pages from where sample software, the  Arduino libraries and the data sheets are available for free download.