Difference between revisions of "RDing TEMPer"
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| Line 45: | Line 45: | ||
| GND | | GND | ||
| | | | ||
| | | LED | ||
| Oscillator | | Oscillator | ||
| Oscillator | | Oscillator | ||
Revision as of 02:50, 24 June 2012
The RDing TEMPer is a USB-based temperature logger.
See RDing TEMPer/Info for more details (such as lsusb -vvv output) about the device.
Hardware
- Main chip: Unknown, yet (markings were removed)
- Temperature sensor: Fairchild FM75 (datasheet), I2C slave addres 0x4f
- I2C EEPROM: Unknown, yet (markings were removed), I2C slave addres 0x50
Main chip pinout:
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SCL | SDA | GND | LED | Oscillator | Oscillator | USB D- | USB D+ |
I2C EEPROM pinout:
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
|---|---|---|---|---|---|---|---|
| GND | GND | GND | GND | SDA | SCL | GND | 3.3V |
Photos
Device, front
Device, back
Device, USB
Device, opened
PCB, front
PCB, back
Sensor
Random pads on the side
Main chip, microscope
Sensor, microscope
Protocol
HID-based.