I’m working on a project that will be powered by a Li-Po battery, so I was looking for a power module that was able to charge the battery and to supply 5V to my circuit. Seeed Studio sells a very interesting module, named Li-po Rider; its main features are: [checklist] supports a single cell Lithium Polymer battery can charge the…
Microchip has just expanded its K50 line of the PIC18 family with the new version of two widely used PIC microcontrollers, 18F2550 and 18F4550, that now add a “K” in their names: http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en558862 http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en558861 The most interesting feature – these microcontrollers are often used as usb devices – is the ability to use an RC internal oscillator also for USB…
In my previous tutorial, you learned how to display a fixed text, coded and saved in Arduino’s program memory, on your display. Now you’re going to learn how to display dynamic text…
Thanks to zcbzjx user, my tutorial about how to send Wake on Lan packets with Arduino+enc28j60 is avaliable in chinese language:
In this post, I’m going to show how to display some characters on your display…
Olimex is well known to hobbyists for its cheap PCB service. Recently its website has been completely renewed and today it features a new section about projects built with the products Olimex designs and sells: Via:Olimex blog
If you’re interested in how an Ethernet device works, maybe to better understand my tutorials about Arduino’s ethernet shield, Microchip has just published an application note about the Ethernet protocol: http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1824&appnote=en533903 Microchip is also the manufacturer of enc28j60 chip I described and used in my tutorials… Via: DangerousPrototypes
A new blog post about my led matrix display with a first example about interfacing it with Arduino…
When I published my previous article about how to control a led using a webpage, I was asked for an example with more than one led. Today I’m going to show you how to control two leds with a more stylish webpage thanks to some images…
Few weeks ago I brought from SureElectronics a led matrix display. The product is made by 4 8×8 led matrices and an Holtek HT1632C controller: In this first tutorial, I’m going to show how to communicate with control chip… COMMUNICATION PROTOCOL HT1632C chip implements a protocol similar to SPI; you can control the chip through 3 pins: CS (chip select)…