On 07/19/2012 09:26 AM, Anton Hergenröder wrote: > Thank you very much! > The trick with the pull-up resistors did it!
You're welcome. > I didn't find any hint on this in the sensor board specs :( > But seems to be a matter of course with this I2C chips... Yes, I know... I discovered that trick when I worked on MDA300CA sensorboard around 2 years ago asking development team. Unfortunately this sensorboard isn't well supported; also its driver is not completed. Best of luck. Cheers, Francesco -- Francesco Ficarola Department of Computer, Control and Management Engineering Sapienza, University of Rome Via Ariosto 25, room B112 00185, Rome Phone: (+39) 0677274119 Skype: francesco.ficarola DIS email: ficarola_at_dis.uniroma1_dot_it Nexse email: francesco.ficarola_at_nexse_dot_com Home email: francesco.ficarola_at_gmail_dot_com GPG KeyID: 0xDBA99D92 > On 14.07.2012 09:28, Francesco Ficarola wrote: >> On 07/13/2012 02:13 PM, Anton Hergenröder wrote: >>> Does anyone successfully use the MDA300CA Sensorboard >>> with TinyOS 2.1.1 and UOIT driver implimentation from tinyos-contrib? >>> >>> I'm trying to use the ADCs of the MDA300CA but get no SUCCESS doing >>> Read.read(). >>> Platform: MICAz >> Hi, >> >> you need to enable I2C bus connecting a 10KOhm pullup resistor between >> pins VCC and DATA, and another one between pins VCC and CLK of your >> MDA300CA sensorboards. >> >> Look at these pictures: >> http://i45.tinypic.com/295y52c.png >> http://i47.tinypic.com/wvbibn.jpg >> >> Cheers, >> Francesco >> > >
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