Category: Electronics

Relays and Arduino

Here I will try to show how to connect a relay to an arduino, with a TIP102 transistor....

Green Energy

After using various wall wart adapters to power my different arduino projects, I decided to try something new. Instead of the normal 230V, I wanted a solar panel,...

Using millis()

Example on how to use millis() to turn led’s on and off at diffrent times, without using delay() [youtube]http://www.youtube.com/watch?v=jL83h8_jbhg[/youtube]...

WiFi Tank

This post will be updated along with the progress on the tank A short intro to what this is [youtube]http://www.youtube.com/watch?v=a2YMYmYldQM[/youtube]...

Servo with external power

If you want to use a servo with your arduino, you can be lucky that it will use little enough power to be driven by...

Voltage Dividers and Arduino

For my WiFiTank I wanted to get a readout of the battery voltage. But the battery is a 9.6V and the charger for it charges...

Seeeduino Mega and WiShield 2.0

I have had my Seeeduino Mega and WiShield 2.0 laying around for some time, wanting to use them together. The problem with that is just...

433MHz RF Communication

For this project I used two Arduino Duemilanove, a 433MHz RF kit, and six short wires to connect it together. To send a message, I...

Thermister to Celcius

Played a bit around with my arduino and a temperature brick from Seeed Studio, and had to convert the reading on the analog pin to degrees in Celsius....