Read 1wire temp sensor on Axon

netman

Hi,
I am trying to detect 1wire temp sensor DS18B20 on my Axon L205 unit with Node-RED OS provided by Unipi.
I tryied enabling EVOK OWBUS to scan sensor, but without success.

I checked i2c bus to see presence of sensor:

unipi@L205-sn57:~$ sudo i2cdetect -y 0
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:          -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- 18 -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- UU -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- UU
70: -- -- -- -- -- -- -- --

unipi@L205-sn57:~$ ls -al /sys/bus/w1/devices/
total 0
drwxr-xr-x 2 root root 0 Jan 14 18:29 .
drwxr-xr-x 4 root root 0 Jan 14 18:22 ..

Here is EVOK config:

[OWBUS_1]
owbus = /dev/i2c-0                              ; Mandatory, scanned bus (--i2c=/dev/i2c-1:ALL or localhost:2122 or 'u' for USB dongle)
interval = 3                                    ; Mandatory, [s] length of sensor reading
scan_interval = 300                             ; Mandatory, [s] How often the scanning is done
EVOK version = 2.3.6

unipi@L205-sn107:~$ sudo lsmod
Module                  Size  Used by
unipi                 110592  6
industrialio           57344  1 unipi
brcmfmac              258048  0
brcmutil               16384  1 brcmfmac
rtc_ds1307             24576  0
rtc_unipi              16384  0
at24                   20480  0

unipi@L205-sn107:~$ sudo ls -la /sys/bus/w1/
ls: cannot access '/sys/bus/w1/': No such file or directory

I tryied to search over forum, but this issue is discuss in context of RasberryPI/Neuron and I am not sure how relevant it is to Axon unit.

Thanks

netman

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