srbpavel/labjack_switch_board

labjack_switch_board:: T4 [ just notes to remember how i set labjack to measure and publish various data ]

analog input: battery voltage --> do not forget voltage divider !!!
digital input: one_wire dallas temperature sensors --> multiple pins reading (no race conditions)
not yet - wheatstone bridge

MACHINE:

LJM installer
$tar -zvxf labjack_ljm_software_2019_07_16_x86_64.tar.gz
#./labjack_ljm_installer.run
$whereis labjack_kipling labjack_kipling: /usr/local/bin/labjack_kipling
be sure to turn off kipling and not run it when active registers in matrix
LJM python
#pip3 install labjack-ljm
#pip3 show labjack-ljm
ain -> input cheat sheet
db15
digital-io / flexible-io
digital-io / one_wire
app_notes / one_wire
techexplorations tutorial: Data acquisition and automation with LabJack
labjack/ljm
labjack/constants
one_wire
maxim_integrated DS18B20 --> pdf
guide to 1-Wire communication guide 1_wire

two one_wire ds pins --> in through the back door when waitin for db15

db15

DEMO mode: no HW required

config_demo.py: 
 LABJACK_MODEL = 'ANY'
 LABJACK_PROTOCOL = 'UDP'
 LABJACK_NAME = '-2'

>>> ljm.openS("ANY", "UDP", "-2")

$python3 -i t4_battery.py --config t4_battery_config_demo.py --task False

CRON: close T4 handler connection

#default
# --task True
*/5 * * * * /usr/bin/python3 /home/conan/soft/labjack_switch_board/t4_battery.py --config /home/conan/soft/labjack_switch_board/t4_battery_config_first.py --task True 1>/home/conan/soft/labjack_switch_board/1_cron_battery_first.log 2>/home/conan/soft/labjack_switch_board/2_cron_battery_first.log

# create TS file for watchdog_observer 
# --task False
*/5 * * * * /usr/bin/python3 /home/conan/soft/labjack_switch_board/t4_ds.py --config /home/conan/soft/labjack_switch_board/t4_ds_config_pin_14.py --task False 1>/home/conan/soft/labjack_switch_board/1_cron_ds_14.log 2>/home/conan/soft/labjack_switch_board/2_cron_ds_14.log

TERMINAL: keep T4 handler connection open [ for example fast data measuring every 5sec just for 15minutes ]

$python3 -i t4_battery.py --config /home/conan/soft/labjack_switch_board/t4_battery_config.py --task True

OBSERVER:

$python3 observer.py --config t4_ds_config_pin_8.py --task False
CONFIG_FILE: t4_ds_config_pin_8.py
START observer: 2021-10-19 08:48:43.262275 /home/conan/soft/labjack_switch_board/requests
ACTUAL_FILES: []

created: 2021-10-19 08:50:01.755565 >>> /home/conan/soft/labjack_switch_board/requests/1634626201752948016_8
 procces: ds_sensor_8
created: 2021-10-19 08:50:06.578097 >>> /home/conan/soft/labjack_switch_board/requests/1634626201766960053_14
 procces: ds_sensor_14
  deleted: 2021-10-19 08:50:12.159307 >>> /home/conan/soft/labjack_switch_board/requests/1634626201752948016_8
  deleted: 2021-10-19 08:50:12.159440 >>> /home/conan/soft/labjack_switch_board/requests/1634626201766960053_14

SYSTEMD: todo

positive temperature
negative temperature
battery
2x CRON job's at the same time, dqPIN 8 waitting for pin 14 to finish and free T4

srbpavel / labjack_switch_board

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