DIY Digital Thermometer 2

Few months ago, I published my first DIY digital thermometer. However, like any simple projects/prototypes,  that project needs some improvements. Previously, I used a voltage regulator that has a 100mA rating. Though it was able to source current to the whole circuit, it gets too hot easily. Another problem with that was that the voltage regulator was very close to the sensor. Since the voltage regulator heated up easily, it always affected the temperature reading of the digital thermometer.

To solve those problems, I came up with a second version of digital thermometer.

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Simple 8×8 LED Matrix Board using AVR

I am featuring here a simple project that uses an 8×8 LED matrix and an AVR microcontroller. It is fun to have something like this. Using this, you can make flashing texts, scrolling texts, or any sort of animations that involves texts or graphics.

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DIY Digital Thermometer

This project is a digital thermometer that uses a microcontroller with analog-to-digital capability, an analog temperature sensor, and some seven-segment displays. The circuit is pretty simple and it can be powered by a 9-volt battery which makes it very portable.

Please continue to read as I go a bit deeper to the details of what builds this easy project.

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8-pin AVR based Mood Lamp

I got a sample of a RGB LED (Red Green Blue Light Emitting Diode). So, I decided to make something fun out of it. Using an 8-pin AVR microcontroller, ATtiny45, I made a simple prototype to control the RGB LED using PWM or Pulse Width Modulation. [Read more...]

All-in-One AVR Development Tool

If you are an AVR fan, you must be familiar with most of Atmel’s AVR development  tools: STK500, AVR Studio, AVRISP, AVR TJAGICE, AVR JTAGICE mkII, AVRISP mkII, STK600, etc. But there is one Atmel AVR development tool that provides ISP programming, High Voltage Programming, and debugging which comes in small form, beautiful box, and cheap price. 

The development tool that I am talking about is the AVR Dragon.

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