TL-WR702N as Arduino shield
I’ve already blogged about the tiny TL-WR702N wifi router and how it is perfect to make your Arduino wireless… Dirk has even transformed that router in an Arduino shield:
JavaScript: add a delay to the keyup() event
When you’re developing an AJAX application, you often use the onkeyup() event that is fired every time the user releases a key on the keyboard. Let’s consider for example an autocomplete function: every time the user enters a character in a field, the application, using JavaScript, queries the server for hints: Sometimes – to avoid…
Mediacenter with Raspberry Pi
The Raspberry Pi, thanks to the Videocore 4 GPU integrated in the Broadcom BCM2835 chip, is perfect for a home mediacenter; the GPU is indeed capable to decode full HD videos. In this tutorial I’m going to explain how to install and use Raspbmc.
Allegro A4988 and Arduino (3)
In the last part of my tutorial about the A4988 driver, I’m going to explain how to build a controller to adjust speed and rotation direction of a stepper motor.
Allegro A4988 and Arduino (2)
After having learned how a stepper motor works and after having introduced the Polulu driver, based on Allegro’s A4988 IC, it’s now time to move the stepper with Arduino!
Arduino Yún
During the annual The state of Arduino presentation, Massimo Banzi has announced the new Arduino Yún, a device that combine an Arduino Leonardo with a system-on-chip by Atheros that runs a Linux distribution designed for embedded devices, named Linino: If you read my tutorials about how to connect Arduino to the Internet, you probably noticed that the Atmel microcontroller has some…
Allegro A4988 and Arduino (1)
In some of my projects, I used a driver based on Allegro A4988 IC to control stepper motors. This tutorial, divided in three posts, will show you how to use that controller with Arduino.
Open book on 3d printing
Some scientists from the ICTP (International Centre for Theoretical Physics) published an open book about 3d printing, titled Low-cost 3d printing for science, education and sustainable development. The book covers pratical issues (printer models, use of OpenSCAD and Slic3r) but also investigates the application of 3d printing in fields like science (including an experience from CERN), education and sustainable development.…
My3dP: hotend
Here’s the hotend for my 3d printer, a J-Head Mk IV-B that MakerFarm sells pre-mounted: I had only to wire and insert the resistor and the thermistor:
OpenWrt now supports Raspberry Pi
OpenWrt is a famous Linux distribution for embedded devices. It was started as a replacement for the original firmware of routers and access points. On April 25, they announced the new version, named Attitude Adjustment (12.09), that adds the new brcm2708 target, that is the Broadcom chip used by Raspberry Pi: