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 …
[more]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 …
[more]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:
- Arduino UNO or Duemilanove
- SeeedStudio Motor Shield
- Arduino Wireless shield
- XBee Explorer USB
- Two XBee Series 2 devices …
Running a Motor with Motorshield and Pulse Width Modulation (PWM)
Required parts:
- Arduino UNO or Duemilanove
- SeeedStudio Motor Shield
- A motor - like this
Optional parts:
- Crimp connector housing (Pololu product 1901)
- Male Crimp Pins (Pololu product 1931)
- Soldering equipment
Setup
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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