Kategorien
Feuchtigkeitsensor DTH 22
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Specification
- 3 to 5V power and I/O
- 2.5mA max current use during conversion (while requesting data)
- Good for 0-100% humidity readings 2-5% accuracy
- Temp Range -40 to 80°C
- No more than 0.5 Hz sampling rate (once every 2 seconds)
- Body size 27mm x 59mm x 13.5mm
- 4 pins, 0.1" spacing
- Weight: 2.4g
- 1 - VCC
- 2 - Data (use 10k Pull-Up resisitor!)
- 3 - n.c.
- 4 - Ground
Wiring
(left to right facing grid ,and pins looking down)
Although it uses a single-wire to send data it is not Dallas One Wire compatible! Needs one pin per sensor. See Adafruit example code