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Topic: Jeelab Dimmer plug (Read 1 time) previous topic - next topic

mist29

Hi,

On the Jeelab web page it says that their dimmer plug with the PCA9635 IC works at 3.3V.
What confuse me a bit is the PCA9635 data sheets says the chip works in the range from 2.3V-5.5V.
Based on the data sheet I would expect to be able to connect the dimmer plug directly to the 5V Arduino I2C.

Does anyone have experience with connecting the Jeelab dimmer plug directly to the Arduino?

Thanks,
Michael

graynomad

Quote
works at 3.3V.

What's the actual wording, maybe they mean "as well as 5v".

Can you point to the data sheet?

Are there other chips in the board that do only work at 3v3?

If not I'd say you are good to go with 5v.

______
Rob
Rob Gray aka the GRAYnomad www.robgray.com

CrossRoads

Schematic
http://jeelabs.net/attachments/68/jlpcb-079.pdf
Use with 5V, no problem.
Don't forget pullup resistors on SCL/SDA lines.
Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

mist29

Thanks for your help. I'll get a couple, and give it a try.

-Michael

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