Not Reading Temp Sensor

[jhaltd]

I've tried adding a DHT22 sensor to my Raspberry Pi, but I can't get Hivetool to recognize / read it. I've enabled the sensor in Settings, selected DHT22, specified GPIO 4 (I've tried a dozen GPIOs actually), set intercept to 0 and slope to 1. When I click reread I get: Temp F, Humidity%, Dew F, Temp C, null null null null

When I use the example.py script from Adafruit to read the sensor I get: Last valid input: 2020-04-29 15:30:40.326392 Temperature: 21.8 C Humidity: 19.5 %

So the sensor is obviously working. What am I doing wrong with Hivetool?

[rcrum003]

Hivetool or HiveControl? Do you have the hivetool interface board or are you hard wiring the sensor?

Ryan

On Apr 29, 2020, at 5:03 PM, jhaltd notifications@github.com wrote:

 I've tried adding a DHT22 sensor to my Raspberry Pi, but I can't get Hivetool to recognize / read it. I've enabled the sensor in Settings, selected DHT22, specified GPIO 4 (I've tried a dozen GPIOs actually), set intercept to 0 and slope to 1. When I click reread I get: Temp F, Humidity%, Dew F, Temp C, null null null null

When I use the example.py script from Adafruit to read the sensor I get: Last valid input: 2020-04-29 15:30:40.326392 Temperature: 21.8 C Humidity: 19.5 %

So the sensor is obviously working. What am I doing wrong with Hivetool?

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[jhaltd]

Hivecontrol, my mistake. I am hard wiring the DHT22 to my raspberry pi.

[rcrum003]

Which pins do are you plugged into and which model raspberry pi do you have

On Apr 29, 2020, at 8:49 PM, jhaltd notifications@github.com wrote:

 Hivecontrol, my mistake. I am hard wiring the DHT22 to my raspberry pi.

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[jhaltd]

I'm testing on a 3 B, but my goal is to deploy it on a Zero W. The DHT22 is currently plugged into pin #2 (+), pin #6 (-) and pin #7 / GPIO4 (out).

[jhaltd]

In addition the DHT22 not working it appears as though the WXUnderground lookup isn't working either:

##########################################################

Starting HiveControl Current Conditions Collection

########################################################## Getting Latest Configurations

We are registered, so do the needful..... --- Syncing Local Hive Config with hivecontrol.org --- HiveControl Version was 104 ########################################################## --- WEIGHT CHECK DISABLED---

########################################################## --- GETTING HIVE TEMP --- Calculated: TEMPF=null, TEMPC=null, HUMI=null

########################################################## --- Counting Bee Flights --- IN=0, OUT=0

########################################################## --- Getting Ambient Weather --- % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0 Warning: Transient problem: HTTP error Will retry in 1 seconds. 5 retries Warning: left. 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0 Warning: Transient problem: HTTP error Will retry in 2 seconds. 4 retries Warning: left. 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0 Warning: Transient problem: HTTP error Will retry in 4 seconds. 3 retries Warning: left. 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0 Warning: Transient problem: HTTP error Will retry in 8 seconds. 2 retries Warning: left. 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0 Warning: Transient problem: HTTP error Will retry in 16 seconds. 1 retries Warning: left. 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0 (standard_in) 1: syntax error /home/HiveControl/scripts/weather/wxunderground/getwxxml.sh: line 72: [: : integer expression expected (standard_in) 1: syntax error /home/HiveControl/scripts/weather/wxunderground/getwxxml.sh: line 75: [: : integer expression expected (standard_in) 1: syntax error /home/HiveControl/scripts/weather/wxunderground/getwxxml.sh: line 78: [: : integer expression expected (standard_in) 1: syntax error /home/HiveControl/scripts/weather/wxunderground/getwxxml.sh: line 81: [: : integer expression expected (standard_in) 1: syntax error /home/HiveControl/scripts/weather/wxunderground/getwxxml.sh: line 84: [: : integer expression expected (standard_in) 1: syntax error /home/HiveControl/scripts/weather/wxunderground/getwxxml.sh: line 87: [: : integer expression expected (standard_in) 1: syntax error /home/HiveControl/scripts/weather/wxunderground/getwxxml.sh: line 90: [: : integer expression expected (standard_in) 1: syntax error /home/HiveControl/scripts/weather/wxunderground/getwxxml.sh: line 93: [: : integer expression expected (standard_in) 1: syntax error (standard_in) 1: syntax error KPASAINT4,'', null ,null,0,null,'null','0','null','null','null','null','null','null','0','0','null','null','null','null','0','0','0'

########################################################## Calculated LUX = 0

########################################################## --- Getting Air Quality --- AIR: 2020-04-30 18:02:15,92, 19, 0.90, 1.62, 1.62

########################################################## --- Storing in the Database ---

--- Sharing with hivecontrol.org --- Successfully Posted to HiveControl.org ########################################################## Script Completed ##########################################################

I've tried the following stations KPAWAYNE5, KPAHAVER17, KPANEWTO35, KTTN, KUKT, KPAWAYNE100

[jhaltd]

Issue #59 (https://github.com/rcrum003/HiveControl/issues/59), that was opened in 2018 and is now closed is exactly the same thing. DHT22 works fine from command line using Adafruit, but times out with polled by HiveControl. Is this still an open issue?

[jhaltd]

When I run the Adafruit example.py I get:

Last valid input: 2020-05-01 00:32:48.313297 Temperature: 21.7 C Humidity: 9.9 %

When I run /home/HiveControl/software/DHTXXD/DHTXXD -g4 I get:

0 21.7 58.9

So both are getting the same temperature, but the humidity is wildly different.

Finally, when I run /home/HiveControl/scripts/system/currconditions.sh I get: --- GETTING HIVE TEMP --- Calculated: TEMPF=null, TEMPC=null, HUMI=null

Of course, that's the one that matters because it's populating the data in HiveControl.

[rcrum003]

Our code was designed for users who have the HiveTool Interface board. The issue with your setup is that I need to go research what GPIO you should use to connect to your sensor. This is because you are not using the interface board. Also, the adafruit humidity looks more wrong, unless you live in a very arid environment. Give us a few days to get back to you man.

[rcrum003]

First thing - I think you should move PIN 2 to PIN 1 - Using 3V instead of 5V. That may be causing an issue

[rcrum003]

Second, if you are plugged into PIN 4 on the actual raspberry PI, then you should specify "7" in the HiveControl Instruments Page - See http://wiringpi.com/pins/ was the original PI library we used and we get to the naming convention.

The DHT script will translate WiringPI -> BCM pin numbers.

[jhaltd]

Awesome that worked! Maybe a note on that screen, or in the Wiki, to say use Pin number instead of GPIO. Thanks for your help.