Thank you very much! The trick with the pull-up resistors did it! 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...
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 > -- Dipl.-Inform. Anton Hergenröder Institut für Telematik, KIT Tel +49 721 608 46394 Zirkel 2, D-76131 Karlsruhe Fax +49 721 608 46789 http://telematics.tm.kit.edu Geb. 20.50, Raum 106 _______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
