Tero's Arduino Blog

Using Arduino with Ada

Alarm Clock using Arduino, DS1307, buzzer, and LCD

Writing this article took somewhat longer than usual, since the scope expanded on the way. Originally, I planned to only show how to use a buzzer, but then I decided to add a DS1307 real-time clock chip to it. And of course, you need a LCD display for showing the …


Temperature measurement with DS18B20 and one-wire protocol

Required parts:

  • Arduino UNO or Duemilanove
  • DS18B20 temperature sensor
  • Some jumper wires
  • About 5K ohm resistor (4.7Kohm or 4.99Kohm is ok)

I had a couple of extra DS18B20 temperature sensors lying around, so I was interested in communicating with them using Arduino.

DS18B20 uses 1-wire protocol for communication …


Remote-controlled robot using XBees and Ada

As a continuation from my motor shield article, I put my motor shield and Arduino combination on wheels and added a wireless shield to go with them.

Building the device

Required parts:


Running a Motor with Motorshield and Pulse Width Modulation (PWM)

Required parts:

Optional parts:


Using a motor from Arduino is somewhat complex since you cannot directly connect the motor to the pins Arduino. Instead …


Recovering IBM Thinkpad T42 BIOS password with AVR-Ada and Arduino

My father had forgotten the BIOS password of his IBM Thinkpad T42 laptop and I promised to take a look at it.

It turns out that there is a relatively easy way to recover the password.

However, I didn't have parts described in the instructions, so instead I used Arduino …


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