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RDing TEMPer USB-based temperature sensor
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This is a set of example captures of the I2C/USB/other traffic on an
RDing TEMPer USB-based temperature sensor.
The device consists of a Fairchild FM75 temperature sensor, an unknown
I2C EEPROM, and an unknown "main chip" (20 pins) which does USB
(low-speed, HID), among other things.
Details:
http://sigrok.org/wiki/RDing_TEMPer
Data
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The logic analyzer used was a CWAV USBee SX (at 12MHz):
Probe RDing TEMPer
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0 (black) I2C SDA (FM75)
1 (brown) I2C SCL (FM75)
2 (red) OS (FM75)
3 (orange) USB DM (main chip)
4 (yellow) USB DP (main chip)
5 (green) LED (a pin on the main chip)
The sigrok command line used was:
sigrok-cli -d 0:samplerate=12mhz --time <time> \
-p 1=SDA,2=SCL,3=OS,4=DM,5=DP,6=LED -o <file>
(<time> and <file> vary)
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