Adjustement Temperature wemos + DTH22 Topic is solved

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Qcvictor
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Adjustement Temperature wemos + DTH22

Post by Qcvictor »

I use wemos D1 mini with her dht22 shield, everything work as expected, but position shield just above the ESP give me 3 degre offset, so I want use the adjustment for operate correction, unfortunately when I apply this adjustment nothing happen!
simonrg
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Re: Adjustement Temperature wemos + DTH22

Post by simonrg »

You don't say which ESP8266 firmware you are using on your Wemos D1 Mini.

Assuming you are using the ESPeasy firmware, then under Devices / DHT22 edit - in the formula box enter:
if 3 degrees too high then:

Code: Select all

%value%-3.0
if 3 degrees too low then:

Code: Select all

%value%+3.0
I have just got 4 DHT22 sensors, I have attached them to one Wemos D1 Mini and I am sending all 4 values back to Domoticz, just playing with offsets to understand how accurate / reproducible the measurements are.

ESPeasy is well documented here: http://www.esp8266.nu/index.php/HumiditySensor
Raspberry Pi 2 B - 2A@5V PSU - Raspbian + Domoticz + RFXtrx(89), LightwaveRF House(dimmers, sockets, wireless/mood switches), Owl CM113, 4 LaCross Temp / Humidity Sensors, 4 Siemens PIR, Smappee, Solaredge, ESP8266
Qcvictor
Posts: 22
Joined: Wednesday 08 April 2015 3:13
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Re: Adjustement Temperature wemos + DTH22

Post by Qcvictor »

many tanks simonrg, exactly what I looking for :mrgreen: you are right ESP Easy R78
My offset : -3.5 for temperature and + 5 for humidity, did you have something similar?
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