ObservAir Operating Manual
Table 5. Serial port settings
3.8.3. Sensor configuration: Serial commands
Commands can be sent over the Serial Monitor to configure the
ObservAir’s various operational settings. Most serial commands share the
same basic format: $cmd$val where ‘cmd’ is the name of command, and
‘val’ is the desired setting value. For example, the command ‘$setFR$100’
sets the sample flowrate to 100ccm. Table 6 documents all available
commands. All settings are saved to the SD card for each mission.
Set mission name (folder name)
Set sample flow rate in ccm
Set measurement period in seconds
Set time zone in hours from GMT
Sync time with internet server (Time
zone must be set, internet must be
accessible and credentials
provisioned)
$setTime$YYYY,MM,
DD,HH,MM,SS
Manually set clock to specified
date/time
Returns all sensor settings
Set the maximum attenuation (ATN)
value, above which alarm is triggered
Reset the attenuation (ATN) to 0
BC, GAS1,
GAS2,
ALERT, OFF
Set the LED to pollutant concentration
display, alerts only, or turn off
Set maximum concentration displayed
by LED button (red)
Set running average size (in seconds)
for the LED concentration display
LED display timeout duration in
minutes. 0 = LED on indefinitely.
Toggle the DLP filter applied to the
pollutant concentration data