Woohoo! Thanks for confirming the code @ognqn.chikov and also thanks to @jburhenn for providing the edits. Way to go!
-B
Here is the code also for DHT22. Sorry that I have remove it, but I split the code for every sensor in separate files.
import cayenne.client as cayenne
import time
import Adafruit_DHT
time.sleep(60) #Sleep to allow wireless to connect before starting MQTT
MQTT_USERNAME = "YOUR_USERNAME"
MQTT_PASSWORD = "YOUR_PASSWORD"
MQTT_CLIENT_ID = "YOUR_CLIENDID"
client = cayenne.CayenneMQTTClient()
client.begin(MQTT_USERNAME, MQTT_PASSWORD, MQTT_CLIENT_ID)
timestamp = 0
while True:
client.loop()
if (time.time() > timestamp + 5):
humidity11, temp11 = Adafruit_DHT.read_retry(11, 18) #11 is the sensor type, 18 is the GPIO pin number that DATA wire is connected to
humidity22, temp22 = Adafruit_DHT.read_retry(22, 19) #22 is the sensor type, 19 is the GPIO pin number that DATA wire is connected to
if temp11 is not None:
client.virtualWrite(1, temp11, cayenne.TYPE_TEMPERATURE, cayenne.UNIT_CELSIUS)
if humidity11 is not None:
client.virtualWrite(2, humidity11, cayenne.TYPE_RELATIVE_HUMIDITY, cayenne.UNIT_PERCENT)
if temp22 is not None:
client.virtualWrite(3, temp22, cayenne.TYPE_TEMPERATURE, cayenne.UNIT_CELSIUS)
if humidity22 is not None:
client.virtualWrite(4, humidity22, cayenne.TYPE_RELATIVE_HUMIDITY, cayenne.UNIT_PERCENT)
timestamp = time.time()
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Thank you, very much.
In Monday I will test for sure that is working with DHT22! Stay tuned 
I just tried running the script…with my DHT22…i got the following error message:
Yes I have a mistake! Sorry! I put one more space than needed! Sorry.
Can you try with this code:
import cayenne.client as cayenne
import time
import Adafruit_DHT
time.sleep(60) #Sleep to allow wireless to connect before starting MQTT
MQTT_USERNAME = "YOUR_USERNAME"
MQTT_PASSWORD = "YOUR_PASSWORD"
MQTT_CLIENT_ID = "YOUR_CLIENDID"
client = cayenne.CayenneMQTTClient()
client.begin(MQTT_USERNAME, MQTT_PASSWORD, MQTT_CLIENT_ID)
timestamp = 0
while True:
client.loop()
if (time.time() > timestamp + 5):
humidity11, temp11 = Adafruit_DHT.read_retry(11, 18) #11 is the sensor type, 18 is the GPIO pin number that DATA wire is connected to
humidity22, temp22 = Adafruit_DHT.read_retry(22, 19) #22 is the sensor type, 19 is the GPIO pin number that DATA wire is connected to
if temp11 is not None:
client.virtualWrite(1, temp11, cayenne.TYPE_TEMPERATURE, cayenne.UNIT_CELSIUS)
if humidity11 is not None:
client.virtualWrite(2, humidity11, cayenne.TYPE_RELATIVE_HUMIDITY, cayenne.UNIT_PERCENT)
if temp22 is not None:
client.virtualWrite(3, temp22, cayenne.TYPE_TEMPERATURE, cayenne.UNIT_CELSIUS)
if humidity22 is not None:
client.virtualWrite(4, humidity22, cayenne.TYPE_RELATIVE_HUMIDITY, cayenne.UNIT_PERCENT)
timestamp = time.time()
Also when you copy it, sometimes some more spaces are added. I use pycharm just for indentation verification.
No need to be sorry, you`re doing a great service to the community…
with the new script i get this error message:
I start the command with sudo python3
I was able to get rid of the error message using
sudo pip install cayenne-mqtt
The DHT22 seam to be Online but there are no widgets in the menu
Can you try sudo pip3 install cayenne-mqtt
and then run the file with sudo python3 filename.py
Yes, I need to research about this message. It is ok to receive messages but with measurements of the sensor, not this one
sudo pip3 install cayenne-mqtt
gives me the following error message:
As it turns out, i’ve got some spare time at this moment…if you need someone for troubleshooting, keep the sugestions coming
You properly connected the DHT22 sensor and edit the code for the GPIO wire?
I will investigate this error and try to give you suggestions. Les’t get back to the empty dashboard to try send data using python2 (sudo python) command. Because I run my code using python3
This is the Script I`m using…
import cayenne.client as cayenne
import time
import Adafruit_DHT
time.sleep(60) #Sleep to allow wireless to connect before starting MQTT
MQTT_USERNAME = "e4c4f330-c845-11e6-bd19-2daeb3a13a46"
MQTT_PASSWORD = "4471f03b7f4cd13453a6d95724dbbe92ee409efc"
MQTT_CLIENT_ID = "4c88c740-0706-11e7-a905-f3d1e6fb8dd5"
client = cayenne.CayenneMQTTClient()
client.begin(MQTT_USERNAME, MQTT_PASSWORD, MQTT_CLIENT_ID)
timestamp = 0
while True:
client.loop()
if (time.time() > timestamp + 5):
# humidity11, temp11 = Adafruit_DHT.read_retry(11, 18) #11 is the sensor type, 18 is the GPIO pin number that DATA wire is connected to
humidity22, temp22 = Adafruit_DHT.read_retry(22, 26) #22 is the sensor type, 19 is the GPIO pin number that DATA wire is connected to
# if temp11 is not None:
# client.virtualWrite(1, temp11, cayenne.TYPE_TEMPERATURE, cayenne.UNIT_CELSIUS)
# if humidity11 is not None:
# client.virtualWrite(2, humidity11, cayenne.TYPE_RELATIVE_HUMIDITY, cayenne.UNIT_PERCENT)
if temp22 is not None:
client.virtualWrite(3, temp22, cayenne.TYPE_TEMPERATURE, cayenne.UNIT_CELSIUS)
if humidity22 is not None:
client.virtualWrite(4, humidity22, cayenne.TYPE_RELATIVE_HUMIDITY, cayenne.UNIT_PERCENT)
timestamp = time.time()
The DHT is connected to 3,3V, GPIO 26 & GND…
I going to take a picture… ~5min
When I try to run my code with sudo python myfile.py I get the same error as you:
Traceback (most recent call last):
File "dht11.py", line 1, in <module>
import cayenne.client as cayenne
ImportError: No module named cayenne.client
I think that it is because I install cayenne-mqtt using python3.
Can you run sudo apt-get install python3-pip
We have Liftoff!
sudo python2 /home/pi/python/tempsensor.py
Seams to work, but unfortunatly i get some Reading-error.
but this might be because of the 3-4Meter Cable I`m using.
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sudo apt-get install python3-pip
is already installed
