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Sunday, 27 January 2013 14:38

My First Raspberry Pi

This is my first Raspberry Pi and here is my hand on experience. Before this, let me show you the specification of my Raspberry Pi. Here I login to Raspberry Pi and list the hardware information:
Saturday, 19 January 2013 20:28

Virtualbox Raspberry Pi Emulator

Would like to have Raspberry Pi experience before you own one of the boards? This article show you how to use VirtualBox as a emulator of Raspberry Pi
 
 
Prerequisite
VirtualBox running in Ms Windows

Download

  • Download the zip file and extract the included torrent file to any folder
  • Open the torrent file with any torrent client. I'm using flashget to open the torrent file.
  • The download should start.
  • You will have a 658,763KB ova file upon completion of downloading

If you had flashing the TP-Link MR3020 firmware to OpenWRT and now you want to restore it to the original state, here is a guide on how to make it. With this guide you will able to changing between original firmware to different version OpenWRT firmware.

This is a guide on how to flash TP-Link TL-MR3020 N Router with OpenWRT.
 
TL-MR3020 N Router Specification
  • CPU Atheros AR9330
  • RAM 32MB
  • NAND 4MB
  • Dimensions 74mm x 67mm x 22mm
  • Power consumption 1.25W Max.
Sunday, 09 December 2012 13:56

Simplest and Cheapest Arduino

Here we use a ATTiny85 (can be ATTiny45, ATTiny44) to make an Arduino just for US3.00, so we name it as Tiny Arduino.
 
Tiny Arduino have only eight pins as shown in figure above, Pin4 is ground (Gnd), Pin8 is 5V (Vcc), Pin1 is Reset, Pin2 and Pin3 originally used to connecting the Crystal. In order to utilize all the IO, the internal oscillator (RC Oscillator) is used to replace the external clock which require a crystal. Therefore the Tiny Arduino is now come with five IO. Below shows the Arduino IO functions.
  • There are five IO, each IO can be Input or Output
  • Among the five IO, two of the IO can perform as PWM
  • Among the five IO, three of the IO can perform as Analog Input
I2C may require to extend the features of Tiny Arduino.