1 Wire UniPi Sensor Temp Humidity DHT22/AM2302

baue
Posts: 5
Joined: Wed Jul 13, 2016 10:52 am

1 Wire UniPi Sensor Temp Humidity DHT22/AM2302

Postby baue » Fri Aug 26, 2016 5:59 pm

Hallo,
the temperature sensor DS18B20 works fine with the Evok software and UniPi. Also the calling with jsonrpclib works.
I put the sensor DHT22/AM2302 on the 1 Wire port how in http://unipi.technology/wiki/1Wire_topology with 4.9 kOhm
pull up on Vdd.
I can not calling the sensor + the sensor address isn't in the evok websurface.
Thanks for a helping hint.

With best regards

u. baue
tomas_hora
Site Admin
Posts: 298
Joined: Wed Oct 29, 2014 9:56 am

Re: 1 Wire UniPi Sensor Temp Humidity DHT22/AM2302

Postby tomas_hora » Mon Aug 29, 2016 7:36 am

The thing is that this sensor does not communicate over the 1-Wire bus...
baue
Posts: 5
Joined: Wed Jul 13, 2016 10:52 am

Re: 1 Wire UniPi Sensor Temp Humidity DHT22/AM2302

Postby baue » Mon Aug 29, 2016 4:55 pm

in the technical specification is the statement:
"Output signal | digital signal via 1-wire bus" ...
what is correct ?
Is the sentence of the next page the solution ?
"1-wire bus is used for communication between MCU and AM2302. (Our 1-bus is specially designed, it's different from Maxim/Dallas 1-wire bus,
so it's incompatible with Dallas 1-wire bus.)"
Which temperature and humidity sensor works with the UniPi API ?

With best regards
u. baue

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