Wednesday, September 25, 2013

IKEA DIODER led strip arduino hack

To my surprise it was really easy to hack IKEA DIODER and connect it to an arduino. The only thing that needed to be done is removing the old microcontroller and solder there wires to control the RGB colours and one for +5 v and GROUND.


Connect the power and ground to the arduino +5v and GND. The wires for controlling the control the colours  to pin 3, 5 and 6 and use the code from Adafruit http://learn.adafruit.com/rgb-led-strips/example-code to test.



Other Dioder hacks
ANOTHER IKEA DIODER HACK
A “real” Ikea Dioder hack

Happy hacking
Marcus




Monday, September 2, 2013

Electric Imp solar powered temperature logger.

The Electric imp is a small chip for connecting things to the internet. Programming the imp is done through their cloud IDE using squirrel.


The first hack I did with the imp was a solar powered temperature logger using a TMP36 sensor and send the data to ThingSpeak

Hardware

Parts

Optional 


Connect the pin9 on the imp to the middle pin on the TMP36 sensor.


Code

To calculate the temperature from the voltage is Temp °C = (voltage - 0.5) * 100 and to transform the analog value from pin9 to voltage is V = supplyVoltage * hardware.pin9.read() / 65535.0.


ThingSpeak graph




Happy hacking
Marcus