boards/feather-nrf52840-sense: use generic lsm6dsxx

[MrKevinWeiss]

Contribution description

This will help handle multiple board variants such as rev B and C.

Testing procedure

Test on both variants with SAUL.

I ran on both the blue and black boards:

$ BOARD=feather-nrf52840-sense make -C examples/saul flash-only term
make: Entering directory '/home/weiss/repos/RIOT/examples/saul'
stty -F /dev/ttyACM0 raw ispeed 1200 ospeed 1200 cs8 -cstopb ignpar eol 255 eof 255
sleep 3
[INFO] uf2conv.py not found - fetching it from GitHub now
CC= CFLAGS= make -C /home/weiss/repos/RIOT/dist/tools/uf2
[INFO] uf2conv.py successfully fetched!
/home/weiss/repos/RIOT/dist/tools/uf2/uf2conv.py -f 0xADA52840 /home/weiss/repos/RIOT/examples/saul/bin/feather-nrf52840-sense/saul_example.hex --base 0x1000
Converted to uf2, output size: 66560, start address: 0x1000
Flashing /media/weiss/FTHRSNSBOOT (nRF52840-Feather-Sense)
Wrote 66560 bytes to /media/weiss/FTHRSNSBOOT/NEW.UF2
sleep 2
/home/weiss/repos/RIOT/dist/tools/pyterm/pyterm -p "/dev/ttyACM0" -b "115200"  
Twisted not available, please install it if you want to use pyterm's JSON capabilities
2024-04-02 11:19:13,689 # Connect to serial port /dev/ttyACM0
Welcome to pyterm!
Type '/exit' to exit.
2024-04-02 11:19:14,695 # ersion: 2024.04-devel-589-g99daa-pr/feathersaul)
2024-04-02 11:19:14,696 # Welcome to RIOT!
2024-04-02 11:19:14,697 # 
2024-04-02 11:19:14,699 # Type `help` for help, type `saul` to see all SAUL devices
2024-04-02 11:19:14,700 # 
> saul read 12
2024-04-02 11:19:16,471 # saul read 12
2024-04-02 11:19:16,474 # Reading from #12 (lsm6dsxx|SENSE_TEMP)
2024-04-02 11:19:16,475 # Data:           19.62 °C
> 2024-04-02 11:19:18,190 # Exiting Pyterm
make: *** [/home/weiss/repos/RIOT/examples/saul/../../Makefile.include:873: term] Interrupt

weiss@mobiweiss:~/repos/RIOT$ BOARD=feather-nrf52840-sense make -C examples/saul flash-only term
make: Entering directory '/home/weiss/repos/RIOT/examples/saul'
stty -F /dev/ttyACM0 raw ispeed 1200 ospeed 1200 cs8 -cstopb ignpar eol 255 eof 255
sleep 3
[INFO] uf2conv.py not found - fetching it from GitHub now
CC= CFLAGS= make -C /home/weiss/repos/RIOT/dist/tools/uf2
[INFO] uf2conv.py successfully fetched!
/home/weiss/repos/RIOT/dist/tools/uf2/uf2conv.py -f 0xADA52840 /home/weiss/repos/RIOT/examples/saul/bin/feather-nrf52840-sense/saul_example.hex --base 0x1000
Converted to uf2, output size: 66560, start address: 0x1000
Flashing /media/weiss/FTHRSNSBOOT (nRF52840-Feather-Sense)
Wrote 66560 bytes to /media/weiss/FTHRSNSBOOT/NEW.UF2
sleep 2
/home/weiss/repos/RIOT/dist/tools/pyterm/pyterm -p "/dev/ttyACM0" -b "115200"  
Twisted not available, please install it if you want to use pyterm's JSON capabilities
2024-04-02 11:19:32,438 # Connect to serial port /dev/ttyACM0
^[[AWelcome to pyterm!
Type '/exit' to exit.
saul read 122024-04-02 11:19:33,443 # ersion: 2024.04-devel-589-g99daa-pr/feathersaul)
2024-04-02 11:19:33,444 # Welcome to RIOT!
2024-04-02 11:19:33,444 # 
2024-04-02 11:19:33,446 # Type `help` for help, type `saul` to see all SAUL devices
2024-04-02 11:19:33,447 # 
saul read 12
2024-04-02 11:19:37,639 # saul read 12
2024-04-02 11:19:37,642 # Reading from #12 (lsm6dsxx|SENSE_TEMP)
2024-04-02 11:19:37,643 # Data:           19.79 °C

Issues/PRs references

Follow-up of #20504

[mguetschow]

Thanks, LGTM! Successfully tested on a rev B feather sense.

Did you also encounter a 5-degree offset between the temperature reported by the dedicated temp sensor (sht3x1) and lsm6dsxx? Definitely within the +/- 15 degrees offset that was indicated in the datasheet, but still surprising at normal room temperature... 🤔

> saul read all
(...)
2024-04-02 11:32:44,184 # Reading from #12 (lsm6dsxx|SENSE_TEMP)
2024-04-02 11:32:44,185 # Data:           13.93 °C
2024-04-02 11:32:44,185 # 
2024-04-02 11:32:44,186 # Reading from #13 (sht3x1|SENSE_TEMP)
2024-04-02 11:32:44,186 # Data:           19.33 °C

[mguetschow]

Oh, and for further reference:

2024-04-02 11:36:07,314 # Reading from #3 (NRF_TEMP|SENSE_TEMP)
2024-04-02 11:36:07,315 # Data:           16.50 °C
2024-04-02 11:36:07,323 # Reading from #7 (bmp280|SENSE_TEMP)
2024-04-02 11:36:07,323 # Data:           19.68 °C

[riot-ci]

Murdock results

✔️ PASSED

99daaec boards/feather-nrf52840-sense: use generic lsm6dsxx

Success	Failures	Total	Runtime
564	0	564	04m:03s

Artifacts

• Documentation preview

[MrKevinWeiss]

It wasn't soo bad for me the lsm6dsxx was the same for both types of boards (around 21) but the bmp was 24 or so... Better than getting an initialize error I suppose.