WeMos D1 mini DHT22 shield
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Product detailed description
It is a Shield that you put directly on the WeMos D1 mini.
Includes temperature and humidity sensor DHT22.
The Shield comes with three different sets of pins: long pin - female, standard pin - female and pin - male. We like the long pin female headers the best, because they allow you to plug the board into the breadboard and at the same time the header-females can be on top of the board.
Specifications:
- Resolution: 16
- Humidity measurement range: 0-100% RH
- Temperature measurement range: -40 to +80C
- Humidity measurement accuracy: 2.0% RH
- Accuracy of temperature measurement: 0.5C
- Pins: VDD, DATA, GND
- DATA pin connected to digital pin D4 of WeMos D1 mini
Included in delivery:
- 1pc WeMos D1 mini DHT22 shield
Remark:
- When the shield is mounted on the Wemos D1 mini board, the heating from the ESP8266 module causes distortion of the measured values! For proper measurement, the shield must be connected to the Wemos D1 mini interconnect board and the sensor must be placed at a safe distance from the ESP8266 module.
- This product is not a standalone functional unit and may require professional installation.
- Product images are for illustration purposes only and may sometimes differ from the actual appearance of the item. However, this does not change its basic properties.
- Wemos D1 mini is not included.
Additional parameters
Category: | ESP and WeMos shield modules |
---|---|
Warranty: | 2 years |
Weight: | 0.01 kg |
Shield function: | Sensor |
1,0
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DP
David Prochazka
Koupil jsem dva shieldy DHT22. Po peripetiích s hledáním funkčního pinu (správný pin je D4 a ne D2 jak bylo v popisu) , jsem zjistil, že jeden senzor nefunguje. Další problém byl, že když se deska WeMos D1 mini zapne s připojeným senzorem na pinu D4 tak se senzor nedetekuje. Když se připojí až po zapnutí tak vše funguje. To je, ale u shieldu dost nešťastné.
1
RB
Roman Beneš
Po zakoupení dvou shieldů DHT22 nebyl ani jeden plně funkční. První ukazoval výrazně odlišné hodnoty, druhý vůbec nic. V popisku je pro komunikaci s deskou chybně uveden pin D2, správně má být D4.
P
Deska obsahuje HW bug
Petr
Podle https://github.com/letscontrolit/ESPEasy/issues/2569#issuecomment-688901549 obsahuje deska HW bug - pin D4 je nevhodný a má být použit pin D5.
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