On 2013-04-07 04:30, Julian Brooks wrote: ...
Also got a voltage transformer that works with i2c as the rpi is 3.5v and sensors 5v.
You can use the 5V from the GPIO header on the pi. From the schematic pin 2 is 5V. Ground is on pin 6. Pin 3 is the i2c data and pin 5 is the clock. Pullup resistors are already installed on those lines.
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We have 2 sensors so we need to figure out how to set the 7bit addresses. Also that the data bit width is 8 - so I'm confused as to what the 35 bytes are and where they come from?
You can't set the addresses. The only way to have two devices with the same address would be to gate the clock using another GPIO pin to control a chip like the CD4051 analog multiplexer so that only one of the sensors receives the clock signal.
Martin _______________________________________________ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
