The Versatile Development Board for AVR microcontrollers ATmega48/88/168

For those of you here that always involved yourself with the AVR microcontrollers, have you ever wished to build a multipurpose development board that compatible with all type of AVRs microcontrollers, such as ATmega48, 88 or 168? Well, you can simply use this board for testing and debugging embedded programs since it has many built-in peripherals connected to microcontroller. Thus, you can use them without even a further soldering or modification! Ok, I know it sounds unnecessary here, but for those that never ever used any ATmega microcontrollers before, you should know that they have many great features, which as: Easy to adjust I/O, Timers, PWM generators, ADC, RS232, TWI, SPI, Analog Comparator, Osillator, EEPROM etc. The main reasons why you should use these microcontrollers because they’re very versatile, easy to program and having an easy to use interface as well! Since this development board has been specially designed, thus you can apply it to use with ATmega (4kB), Atmega (8kB) or ATmega (16kB). Hope you will enjoy this development board project and until then, see ya! Continue reading

Infra-Red Link and AVR – Would These Two a Good Match?

Have you ever think about by combining the two different things: Infrad-red link and AVR then transform them into a cool stuff? Well, if you haven’t tried it before, you have to test it out today! To cut the long story short, you just going straight to the point… Firstly, you might want to build the prototype in stages. The first stage will contain just the AVR and an infrared detector with some bypass capacitors. Don’t waste your time build the circuit on breadboard, as it wouldn’t work. The breadboard is picking up noise, thus you need to remove the components from the breadboard and solder them to a prototyping board. Now, the circuit will be working. Then, you would need to add a 14.7456 MHz crystal and the two capacitors on the prototype, which this for a more stable oscillator and more robust communication. If you refer to the figure above, you see a complete device. On the left hand side, you will use a 2-pin power connector to power the circuit from an AC adapter rather than the… Continue reading