Blog Archives
Posted on 01 Jun 2008
This is an AVR ATMEGA8 based development board. This board consists of necessary components such as a LCD display,LEDs, RS-232 port, push buttons, relays, switches etc. It is ideal as a board for development your AVR projects.[more]
Posted on 01 Jun 2008
The Bob-clock is a wall-clock which uses 60 multi-color LEDs arranged in a circle to represent the small and big arm of an analog clock. If desired, it can also display the seconds with a third color. The image above shows the Bob-clock as it currently looks.The blue light signifies the hour-hand, while the red one is the minutes, so the image above the time is about 10 minutes to 4.[more]
Posted on 21 May 2008
Hat Hack is a personal light-show to wear after dark. The project drives two 21×10 dot displays each made from 6 LED modules. Control is provided by an AVR ATMEGA32L microcontroller.The software is written in C on the WinAVR environment. [more]
Posted on 19 May 2008
This is AVR-based Robot Hardware.The main processor board hosts the processor itself, a buffer stage for driving the infra-red emitters in the eyes, and a second stage amplifier which boosts the signals the eye receives with its photodiodes. Otherwise, the rest of the board is given over to connectors to which the other boards interface.[more]
Posted on 18 May 2008
An AVR controller can be used as a counter, although it is a bit more involved than with a PIC. The reason is that a PIC (at least the 16F84) has an asynchronous counter input. This input will handle frequencies up to app. 40 MHz. AVR’s have a synchronous counter input which is sampled with the clock frequency, so it cannot measure frequencies over half the clock frequency. So, when using a 4 MHz clock, input frequencies must be lower than 2 MHz. Use 40% of the clock frequency to be on the safe side.[more]
