SDR and Acurite Tower Sensor battery error

[Gazza]

I have been having a play with the RTL-SDR stuff and have got it working with a FOWH3080 clone. When testing I found I could also read the data from another Acurite Tower Sensor I have so have included that into my sensor map.

What I have noticed is the the low battery detection logic for the Tower Sensor in sdr.py doesn't work, it always displays data for a low battery.

I tested the sensor with a low battery (~2.5V) and confirmed that I got a low icon on the console and that with a good battery (~3.5V) the icon goes away.

Testing sdr.py from the command line shows that rtl_433 is giving the correct results for a low and good battery but the parsed output is always a 1.

Can anyone point me in the right direction to fix this please.


Gary

-------------------------
Low battery - Vbat~2.5V

pi@GazPiB1:~ $ sudo PYTHONPATH=/usr/share/weewx python /usr/share/weewx/user/sdr.py --cmd="rtl_433 -q -U -F json -R 40"

out: ['{
"time" : "2018-07-21 01:53:56",
"model" : "Acurite tower sensor",
"id" : 13009,
"sensor_id" : 13009,
"channel" : "A",
"temperature_C" : 15.000,
"humidity" : 16,
"battery_low" : 1
}\n'


parsed: {
'temperature.32D1.AcuriteTowerPacket': 15.0,
'dateTime': 1532138036,
'status.32D1.AcuriteTowerPacket': None,
'humidity.32D1.AcuriteTowerPacket': 16.0,
'battery.32D1.AcuriteTowerPacket': 1,
'channel.32D1.AcuriteTowerPacket': 'A',
'usUnits': 16
}
----------------------------------------
Good battery - Vbat~3.5V

pi@GazPiB1:~ $ sudo PYTHONPATH=/usr/share/weewx python /usr/share/weewx/user/sdr.py --cmd="rtl_433 -q -U -F json -R 40"

out: ['{
"time" : "2018-07-21 01:52:24",
"model" : "Acurite tower sensor",
"id" : 13009,
"sensor_id" : 13009,
"channel" : "A",
"temperature_C" : 15.600,
"humidity" : 16,
"battery_low" : 0
}\n'


parsed: {
'temperature.32D1.AcuriteTowerPacket': 15.6,
'dateTime': 1532137944,
'status.32D1.AcuriteTowerPacket': None,
'humidity.32D1.AcuriteTowerPacket': 16.0,
'battery.32D1.AcuriteTowerPacket': 1,
'channel.32D1.AcuriteTowerPacket': 'A',
'usUnits': 16
}
---------------------------------------

[mwall]

On Saturday, July 21, 2018 at 12:42:26 AM UTC-4, Gazza wrote:

I have been having a play with the RTL-SDR stuff and have got it working with a FOWH3080 clone. When testing I found I could also read the data from another Acurite Tower Sensor I have so have included that into my sensor map.

What I have noticed is the the low battery detection logic for the Tower Sensor in sdr.py doesn't work, it always displays data for a low battery.

please try weewx-sdr v0.43.  that should fix the battery indicator for tower sensors.  it should also fix the battery indicator for acurite lightning sensors.

m 

[Gazza]

On Saturday, July 21, 2018 at 7:46:27 PM UTC+10, mwall wrote:

please try weewx-sdr v0.43.  that should fix the battery indicator for tower sensors.  it should also fix the battery indicator for acurite lightning sensors.

m 

Hi Mathew

I have installed the new version and the response in the parsed output has changed to "none" but the data displayed in the Seasons skin is still showing Low.

pi@GazPiB1:~ $ sudo PYTHONPATH=/usr/share/weewx python /usr/share/weewx/user/sdr.py --cmd="rtl_433 -q -U -F json -R 40"
out: ['{

"time" : "2018-07-21 10:23:43",

"model" : "Acurite tower sensor",
"id" : 13009,
"sensor_id" : 13009,
"channel" : "A",

"temperature_C" : 1.900,

"humidity" : 16,
"battery_low" : 0
}\n'


parsed: {

'temperature.32D1.AcuriteTowerPacket': 1.9,
'dateTime': 1532168623,
'status.32D1.AcuriteTowerPacket': None,
'humidity.32D1.AcuriteTowerPacket': 16.0,
'battery.32D1.AcuriteTowerPacket': None,

'channel.32D1.AcuriteTowerPacket': 'A',
'usUnits': 16
 

Gary

[mwall]

On Saturday, July 21, 2018 at 6:44:58 AM UTC-4, Gazza wrote:

Hi Mathew

I have installed the new version and the response in the parsed output has changed to "none" but the data displayed in the Seasons skin is still showing Low.

try v0.44.  looks like rtl_433 is now using 'battery_low' not 'battery' for the identifier in json output for the acurite tower sensor.  but it uses 'battery' everywhere else, and 'OK' or 'LOW' not 0 or 1.

m 

[Gazza]

Version 0.44 now works OK, thanks for that.


Gary