Protocol decoder:am230x
Revision as of 14:55, 12 October 2014 by Uwe Hermann (talk | contribs) (Created page with "{{Infobox protocol decoder | id = am230x | name = AM230x/DHTxx | description = Aosong AM230x/DHTxx humidity/temperature sensor protocol | status...")
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| Name | AM230x/DHTxx |
|---|---|
| Description | Aosong AM230x/DHTxx humidity/temperature sensor protocol |
| Status | supported |
| License | GPLv2+ |
| Source code | decoders/am230x |
| Input | logic |
| Output | am230x |
| Probes | SDA |
The am230x protocol decoder decodes the Aosong AM2301/AM2302/AM2303/DHT11 temperature and humidity sensor single-wire protocol.
Hardware
AM2301, top
AM2301, bottom
DHT11, top
DHT11, bottom
See the am230x directory for example capture files.
Protocol
A custom single-wire protocol (not to be confused with the Dallas 1-Wire protocol!) is used to get the measured values from the sensor.
The actual payload consists of a humidity value, a temperature value, and a checksum.
Resources
- Aosong (vendor website)
- Adafruit: DHT sensor tutorial
- arduino.cc: DHTLib