AVR Multimedia Board

October 23, 2011 By Leave a Comment

When I was able to produce a beep tone using a microcontroller for the first time, I was very proud of myself. Later, I learned how to interface an LCD module to a microcontroller. Those were the days when I was just starting to step into the world of microcontrollers and the little accomplishments that I had always drove me to learn and do something better.

I love sound and graphics very much. I love it even better if I make them work with microcontrollers. That is why I said to myself that I want to build a microcontroller with a touchscreen TFT LCD module and an audio driver. That way, I would be able to do a lot of projects that involves sound and graphics. Hence, the AVR Multimedia Board was born.

[Read more...]

Filed Under: Projects Tagged With: , , , , , , , ,

Using Analog Humidity Sensors

March 15, 2011 By 3 Comments

Humidity sensors measure the relative humidity of air. They come in different types – both digital and analog types. The digital types are relatively more expensive than the analog types.  The measured relative humidity by digital humidity sensors are commonly sent out using digital serial interfaces like I2C and SPI. Analog humidity sensors are cheaper and they come in two types – capacitive and resistive humidity sensors.

[Read more...]

Pages: 1 2 3 4 5 6

Filed Under: General Information, Others, Tutorials Tagged With: , ,

Motion Activated Message Display

December 5, 2010 By 6 Comments

Recently, I tested the 0832 LED Matrix Board that I purchased from Sure Electronics. Since I have a simple AVR microcontroller breakout board and a PIR sensor that senses motion, I decided to make something fun using the 0832 LED Matrix Board. [Read more...]

Filed Under: Projects Tagged With: , ,

LPC1343 Breakout Board

November 21, 2010 By 17 Comments

  

The LPC1343 is a low power ARM Cortex M3 microcontroller targeted for embedded applications. It has 32KB of flash memory and 8KB of SRAM. On-chip peripherals include I2c, SPI, UART, Timers, Interrupts, ADC, USB, etc. It includes both UART and USB bootloader. Believe me, the USB bootloader is cool. [Read more...]

Filed Under: Projects Tagged With: , , ,

Sure Electronics Matrix Display Test

November 2, 2010 By 7 Comments

Few weeks ago, I purchased a 32×8 LED matrix board from Sure Electronics. It was a very nice board and I was really excited to use it in one of my projects.

This board is composed of four 8×8 LED matrix modules and HT1632 LED matrix driver. It can be powered by a 5VDC supply and at least three microcontroller pins are needed to control the board.

I tested the board using my 28-pin AVR breakout board and ATmega8 microcontroller. It was not very complicated to use but, to make things easier, I am planning to write my own library for this board.

Here’s the video of the test.

Hey, take a look also at my project about 8×8 LED matrix board using an AVR microcontroller.

[Read more...]

Filed Under: Articles, Trials and Reviews Tagged With: ,