Difference between revisions of "RDing TEMPer"

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== Resources ==
== Resources ==


* Protocol / device / software info: [https://relavak.wordpress.com/2009/10/17/temper-temperature-sensor-linux-driver/ 1], [http://search.cpan.org/~msulland/Device-USB-PCSensor-HidTEMPer-0.0201/lib/Device/USB/PCSensor/HidTEMPer/TEMPer/Internal.pm 2], [https://github.com/edorfaus/TEMPered/wiki/1130%3A660C 3], [http://www.circuitdb.com/articles/20 4], [http://www.linuxjournal.com/article/10809 5], [http://www.rjl.com.au/marketplace/Articles_show.asp?a=47 6], [https://github.com/search?langOverride=&q=temper&repo=&start_value=1&type=Repositories 7]
* [https://relavak.wordpress.com/2009/10/17/temper-temperature-sensor-linux-driver/ Relavak Labs: TEMPer Temperature Sensor Linux Driver] (libusb software)
* [http://www.linuxjournal.com/article/10809?page=0,0 LinuxJournal: Hack and / - Temper Temper] (article about Device::USB::PCSensor::HidTEMPer perl module)
* [http://www.polarnight.co.uk/blog/temper-usb-temperature-sensor-inside/ Polarnight blog: TEMPer USB Temperature Sensor – Inside!] (a teardown of an older TEMPer version)
* [https://wwwx.cs.unc.edu/~hays/archives/2010/03/entry_25.php bil: Software to support the TEMPer USB thermistor] (blog post)
* [http://blog.jonathangazeley.com/2009/10/nagios-plugin-for-temper-usb-thermometer/ Jonathan Gazeley: Nagios plugin for TEMPer USB thermometer] (also: [http://www.jonathangazeley.com/wp-content/uploads/2009/10/TEMPer2.c TEMPer2.c], code for the USB-to-serial version)
* [http://err.no/personal/blog/tech/2008-07-22-10-17_kernel_patches_TEMPer_thermometer.html Tollef Fog Heen's blog: Kernel patches and the TEMPer USB thermometer] (also: [http://err.no/src/TEMPer.c TEMPer.c])
* [http://www.no-feature.com/2008/01/taking-advantage-of-your-temper-device.html No Feature Left behind: Taking advantage of your TEMPer 1.0 USB device] (C#, .NET)
* [http://search.cpan.org/dist/Device-USB-PCSensor-HidTEMPer/ Device::USB::PCSensor::HidTEMPer] (Perl)
* [http://bailey.st/blog/2012/04/12/dirt-cheap-usb-temperature-sensor-with-python-sms-alerting-system/ Eclectic Security: Dirt cheap USB Temperature Sensor with python SMS alerting system]
* [http://www.circuitdb.com/articles/20 CircuitDB: Cheap temperature logging]
* [http://www.rjl.com.au/marketplace/Articles_show.asp?a=47 RJL: Using Cacti to measure temperatures]
* Github: [https://github.com/edorfaus/TEMPered TEMPered]

Revision as of 23:55, 25 June 2012

RDing TEMPer

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

I2C, USB, LED
I2C/USB closeup
  • Main chip: Unknown, yet (markings were removed)
  • Temperature sensor: Fairchild FM75 (datasheet), I2C slave address 0x4f
  • I2C EEPROM: Unknown, yet (markings were removed), I2C slave address 0x50
  • Oscillator: 6MHz

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 5V/high 5V/high 5V/high 5V/high GND 5V/high 3.3V Oscillator Oscillator 5V/high USB D- USB D+ LED (5V) 5V 3.3V 3.3V

I2C EEPROM pinout:

1 2 3 4 5 6 7 8
GND GND GND GND SDA SCL GND 3.3V

See these example sigrok captures for the I2C, USB, and LED traffic going on while the device is queried from the PC (see also screenshots on the right-hand side).

Example usage: 

$ sigrok-cli -i rding_temper_i2c_usb_led_sensor_5s.sr -a i2c:sda=0:scl=1
i2c: "START" 
i2c: "ADDRESS READ" "0x4f" 
i2c: "ACK" 
i2c: "DATA READ" "0x1d" 
i2c: "ACK" 
i2c: "DATA READ" "0x80" 
i2c: "ACK" 
i2c: "STOP" 

$ sigrok-cli -i rding_temper_i2c_usb_led_sensor_5s.sr -a usb:dm=3:dp=4:signalling=low-speed
usb: "SYNC INVALID!" "001001001100100" 
usb: "SYNC INVALID!" "000000000000110000000111111100100000000010001" 
usb: "SYNC INVALID!" "0000000000011100000011000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000111111001000101111" 
usb: "SYNC INVALID!" "000000000000001001000010011" 
usb: "OUT DEV 47 EP 0" "00000001100001111111010000001001" 
usb: "DATA1 00 00 00 00 00 00 00 00 " "000000011101001000000000000000000000000000000000000000000000000000000000000000001111110100101111" 
usb: "SYNC INVALID!" "00000000101001011" 
usb: "OUT DEV 47 EP 0" "00000001100001111111010000001001" 
usb: "DATA0 00 00 00 00 00 00 00 00 " "000000011100001100000000000000000000000000000000000000000000000000000000000000001111110100101111" 
usb: "SYNC INVALID!" "00000000101001011" 
usb: "IN DEV 47 EP 0" "00000001100101101111010000001001" 
usb: "DATA1 " "00000001110100100000000000000000" 
usb: "ACK " "0000000101001011"

Photos

  • Device, front

  • Device, back

  • Device, USB

  • Device, opened

  • PCB, front

  • PCB, back

  • Sensor, EEPROM

  • Random pads on the side

  • Main chip, microscope

  • Sensor, microscope

Protocol

HID-based.

Resources

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