Tobi’s Corner

Bilder vom TU-Ball am 24.01.2007 Read the rest of this entry »

Here you can see my IKEA Storm Lamp Mod using the powerRGB circuit and the tinyRGB firmware.

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Do you want to listen to MP3 on your radio? But yout radio doesn’t have a AUX IN or any other Input? Then audioFM can help you. audioFM takes audio signals from a headphone plug and converts it into radio UKW FM signals. Read the rest of this entry »

powerRGB is the extension of tinyRGB to drive high power LED’s. For this project I used a 3 x 1W common Anode RGB LED.

Q1 to Q3 are N-Channel HEXFet Mosfet’s with logic level drive and a RDSon at about 50mOhms. R1 to R3 are at about 2k2, R4 to R6 at about 15k and R7 to R9 depend on the LED used and VCC. If you use FET’s with higher RDSon you have to consider RDS in your calculation!

Rx = (Vcc-Vf)/Im - RDSon

[Vcc: Volatge of power supply, Vf: Vorward Voltage of the Diode, Im: Max current of LED]

The software for the AVR is the same as for tinyRGB.

So here you can find the current testing version of my module. It can be used to display some text but it has still some bugs Read the rest of this entry »