I am using a Raspberry Pi 3 2016 Model B. I'm trying to use USB TEMPer2 Thermometers to detect the temperature of ice water and the temperature of nearly boiling water. I am not getting the correct temperatures.
pi@raspbypi:~/project $ cat temper-pi.txt http://www.linuxjournal.com/content/temper-pi pi@raspbypi:~/project $ pi@raspbypi:~/project $ lsusb Bus 001 Device 010: ID 0c45:7401 Microdia Bus 001 Device 009: ID 0c45:7401 Microdia Bus 001 Device 008: ID 0c45:7401 Microdia Bus 001 Device 007: ID 0409:0058 NEC Corp. HighSpeed Hub Bus 001 Device 005: ID 0a81:0205 Chesen Electronics Corp. PS/2 Keyboard+Mouse Adapter Bus 001 Device 011: ID 0c45:7401 Microdia Bus 001 Device 006: ID 0c45:7401 Microdia Bus 001 Device 004: ID 0409:0058 NEC Corp. HighSpeed Hub Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. SMSC9512/9514 Fast Ethernet Adapter Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub pi@raspbypi:~/project $ pi@raspbypi:~/project $ lsusb -t /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=dwc_otg/1p, 480M |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/5p, 480M |__ Port 1: Dev 3, If 0, Class=Vendor Specific Class, Driver=smsc95xx, 480M |__ Port 2: Dev 4, If 0, Class=Hub, Driver=hub/4p, 480M |__ Port 1: Dev 6, If 0, Class=Human Interface Device, Driver=, 1.5M |__ Port 1: Dev 6, If 1, Class=Human Interface Device, Driver=, 1.5M |__ Port 4: Dev 11, If 0, Class=Human Interface Device, Driver=, 1.5M |__ Port 4: Dev 11, If 1, Class=Human Interface Device, Driver=, 1.5M |__ Port 3: Dev 5, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M |__ Port 3: Dev 5, If 1, Class=Human Interface Device, Driver=usbhid, 1.5M |__ Port 4: Dev 7, If 0, Class=Hub, Driver=hub/4p, 480M |__ Port 1: Dev 8, If 0, Class=Human Interface Device, Driver=, 1.5M |__ Port 1: Dev 8, If 1, Class=Human Interface Device, Driver=, 1.5M |__ Port 2: Dev 9, If 0, Class=Human Interface Device, Driver=, 1.5M |__ Port 2: Dev 9, If 1, Class=Human Interface Device, Driver=, 1.5M |__ Port 4: Dev 10, If 0, Class=Human Interface Device, Driver=, 1.5M |__ Port 4: Dev 10, If 1, Class=Human Interface Device, Driver=, 1.5M pi@raspbypi:~/project $ pi@raspbypi:~/project/temper-python $ cat take_temps.bash #!/bin/bash while (true) do sudo temper-poll -p sleep 10 done @raspbypi:~/project/temper-python $ ./take_temps.bash Found 5 devices Device #0 (bus 1 - port 4): 25.1°C 77.1°F Device #1 (bus 1 - port 2): 24.1°C 75.3°F Device #2 (bus 1 - port 1): 21.5°C 70.7°F Device #3 (bus 1 - port 4): 23.8°C 74.9°F Device #4 (bus 1 - port 1): 23.2°C 73.8°F Found 5 devices Device #0 (bus 1 - port 4): 25.1°C 77.1°F Device #1 (bus 1 - port 2): 24.1°C 75.3°F Device #2 (bus 1 - port 1): 21.5°C 70.7°F Device #3 (bus 1 - port 4): 23.8°C 74.9°F Device #4 (bus 1 - port 1): 23.2°C 73.8°F Found 5 devices Device #0 (bus 1 - port 4): 25.1°C 77.1°F Device #1 (bus 1 - port 2): 24.1°C 75.4°F Device #2 (bus 1 - port 1): 21.5°C 70.7°F Device #3 (bus 1 - port 4): 23.8°C 74.9°F Device #4 (bus 1 - port 1): 23.2°C 73.8°F Found 5 devices Device #0 (bus 1 - port 4): 25.1°C 77.1°F Device #1 (bus 1 - port 2): 24.1°C 75.4°F Device #2 (bus 1 - port 1): 21.5°C 70.7°F Device #3 (bus 1 - port 4): 23.8°C 74.9°F Device #4 (bus 1 - port 1): 23.2°C 73.8°F Found 5 devices Device #0 (bus 1 - port 4): 25.1°C 77.1°F Device #1 (bus 1 - port 2): 24.2°C 75.5°F Device #2 (bus 1 - port 1): 21.5°C 70.7°F Device #3 (bus 1 - port 4): 23.8°C 74.9°F Device #4 (bus 1 - port 1): 23.2°C 73.8°F Found 5 devices Device #0 (bus 1 - port 4): 25.1°C 77.1°F Device #1 (bus 1 - port 2): 24.2°C 75.5°F Device #2 (bus 1 - port 1): 21.5°C 70.7°F Device #3 (bus 1 - port 4): 23.8°C 74.9°F Device #4 (bus 1 - port 1): 23.2°C 73.8°F ^C Please note the following changes to Raspbian, Jessie I believe... pi@raspbypi:~/project/temper-python $ cat /boot/cmdline.txt dwc_otg.lpm_enable=0 console=serial0,115200 console=tty1 root=/dev/mmcblk0p7 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait quiet splash plymouth.ignore-serial-consoles usbhid.quirks=0x0c45:0x7401:0x4 pi@raspbypi:~/project/temper-python $ cat /etc/udev/rules.d/99- tempsensor.rules SUBSYSTEMS=="usb", ACTION=="add", ATTRS{idVendor}=="0c45", ATTRS{idProduct}=="7401", MODE="666" The above changes allow non non root users to use temper-python and they should prevent problems with the sensors being identified as keyboards? The following is an excerpt out of dmesg: [ 206.199665] usb 1-1.2.1: new low-speed USB device number 14 using dwc_otg [ 206.317607] usb 1-1.2.1: New USB device found, idVendor=0c45, idProduct=7401 [ 206.317619] usb 1-1.2.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 206.317626] usb 1-1.2.1: Product: TEMPer2_M12_V1.3 [ 206.317633] usb 1-1.2.1: Manufacturer: RDing [ 206.409673] usb 1-1.2.4: new low-speed USB device number 15 using dwc_otg [ 206.527634] usb 1-1.2.4: New USB device found, idVendor=0c45, idProduct=7401 [ 206.527645] usb 1-1.2.4: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 206.527653] usb 1-1.2.4: Product: TEMPer2_M12_V1.3 [ 206.527659] usb 1-1.2.4: Manufacturer: RDing I noticed that the Linux Journal article is old and that the sensors I have are likely newer than when the article was written. The seller said Linux compatible, but is that true? _______________________________________________ PLUG mailing list PLUG@lists.pdxlinux.org http://lists.pdxlinux.org/mailman/listinfo/plug
