DHT11, DHT22 and BBMagic METEO can measure temperature and humidity. BBMagic METEO can also measure voltage on two analog inputs and read state of four digital inputs. Lets compare sensors parameters:
Temperature
| Parameter |
BBM METEO |
DHT22 AM2302 |
DHT11 |
|
| Operating range |
-40 to +125 |
-40 to +80 |
0 to +50 |
*C |
| Accuracy |
+/-0,3 |
+/-0,5 |
+/-1 |
*C |
| Resolution |
0,04 |
0,1 |
1 |
*C |
| Repeatability |
+/-0,1 |
+/-0,2 |
+/-1 |
*C |
Relative humidity
| Parameter |
BBM METEO |
DHT22 AM2302 |
DHT11 |
|
| Measurement Range in 20*C |
0 to 100 |
0 to 100 |
20 to 90 |
%RH |
| Typical accuracy |
+/-3 |
+/-2 |
+/-4 |
%RH |
| Maximum error in full range |
+/-4,5 |
+/-5,0 |
+/-5,0 |
%RH |
| Resolution |
1 |
0,1 |
1 |
%RH |
| Repeatability |
+/-0,1 |
+/-1,0 |
+/-1,0 |
%RH |
| Long Term Drift |
+/-0,25 |
+/-0,5 |
+/-1,0 |
%RH/year |
Other parameters
| Parameter |
BBM METEO |
DHT22 AM2302 |
DHT11 |
|
| Communication |
Bluetooth Low Energy |
one wire digital bus |
one wire digital bus |
|
| Power supply |
2,1 – 3,6 |
3,3 – 5,5 |
3-5,5 |
V |
All BBMagic METEO parameters are here: Welcome to BBMagic METEO
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Data transferring period configurationRead more
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