Difference between revisions of "Protocol decoder:Am230x"

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(Created page with "{{Infobox protocol decoder | id = am230x | name = AM230x/DHTxx | description = Aosong AM230x/DHTxx humidity/temperature sensor protocol | status...")
 
(rht03 and renaming info)
 
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{{Infobox protocol decoder
{{Infobox protocol decoder
| id              = am230x
| id              = am230x
| name            = AM230x/DHTxx
| name            = AM230x/DHTxx/RHTxx
| description    = Aosong AM230x/DHTxx humidity/temperature sensor protocol
| description    = Aosong AM230x/DHTxx/RHTxx humidity/temperature sensor protocol
| status          = supported
| status          = supported
| license        = GPLv2+
| license        = GPLv2+
Line 10: Line 10:
| output          = am230x
| output          = am230x
| probes          = SDA
| probes          = SDA
| optional_probes =  
| optional_probes = —
| options        = device
}}
}}


The '''am230x''' protocol decoder decodes the [http://www.aosong.com/en/products/index.asp?classid=313&name=Humidity%20&%20temp%20Sensor/OEM Aosong AM2301/AM2302/AM2303/DHT11] temperature and humidity sensor single-wire protocol.
The '''am230x''' protocol decoder decodes the [http://www.aosong.com/en/products/index.asp?classid=313&name=Humidity%20&%20temp%20Sensor/OEM Aosong AM230x/DHT11] temperature and humidity sensor single-wire protocol.


== Hardware ==
== Hardware ==
See the [http://sigrok.org/gitweb/?p=sigrok-dumps.git;a=tree;f=am230x am230x] directory for example capture files.
=== Models ===
{| border="0" style="font-size: smaller" class="alternategrey sortable sigroktable"
|-
!Model
!Microcontroller
!Temperature
!Humidity
!Datasheet
|-
| [http://www.aosong.com/en/products/details.asp?id=110 Aosong AM2301]
| Unknown SOIC-10
| ?
| ?
| [http://meteobox.tk/files/AM2301.pdf PDF]
|-
| [http://www.aosong.com/en/products/details.asp?id=117 Aosong AM2302]
| [http://www.st.com/web/catalog/mmc/FM141/SC1244/SS1010/LN754/PF215113 ST STM8S103F3] (8S103F3P6), SOIC-20
| analog
| analog
| [http://www.adafruit.com/datasheets/Digital%20humidity%20and%20temperature%20sensor%20AM2302.pdf PDF]
|-
| Aosong AM2303
| [http://www.st.com/web/catalog/mmc/FM141/SC1244/SS1010/LN754/PF215113 ST STM8S103F3] (8S103F3P6), SOIC-20
| [http://www.maximintegrated.com/en/products/analog/sensors-and-sensor-interface/DS18B20.html Dallas DS18B20]
| analog
| [http://www.aosong.com/asp_bin/Products/en/AM2303.pdf PDF]
|-
| [http://aosong.com/en/products/details.asp?id=121 Aosong AM2305]
| ?
| ?
| ?
| [http://www.aosong.com/asp_bin/Products/en/AM2305.pdf PDF]
|-
| [http://aosong.com/en/products/details.asp?id=115 Aosong AM2306]
| ?
| ?
| ?
| [http://www.aosong.com/asp_bin/Products/en/AM2306.pdf PDF]
|-
| Aosong AM2320
| ?
| ?
| ?
| ?
|-
| Aosong AM2321
| ?
| ?
| ?
| ?
|-
| Aosong AM2322
| ?
| ?
| ?
| ?
|-
| Aosong DHT11
| Unknown SOIC-14
| analog
| analog
| [http://akizukidenshi.com/download/ds/aosong/DHT11.pdf PDF]
|-
| RTH03
| ?
| ?
| ?
| https://www.sparkfun.com/products/10167
|}
These parts are often renamed or rebadged.
=== Aosong AM2301 ===
<gallery>
File:Aosong am2301 top.jpg|<small>Device, top</small>
File:Aosong am2301 bottom.jpg|<small>Device, bottom</small>
File:Am2301 pcb open.jpg|<small>Device PCB, open</small>
File:Am2301 pcb top.jpg|<small>Device PCB, top</small>
File:Am2301 pcb bottom.jpg|<small>Device PCB, bottom</small>
</gallery>
=== Aosong AM2302 ===
<gallery>
File:Aosong am2302 top.jpg|<small>Device, top</small>
File:Aosong am2302 bottom.jpg|<small>Device, bottom</small>
File:Aosong am2302 pcb top.jpg|<small>PCB, top</small>
File:Aosong am2302 pcb bottom.jpg|<small>PCB, bottom</small>
File:Aosong am2302 microcontroller.jpg|<small>STM8S103F3 </small>
File:Aosong am2302 sensor back.jpg|<small>Sensor</small>
File:Aosong am2302 debris.jpg|<small>Debris</small>
</gallery>
=== Aosong AM2303 ===


<gallery>
<gallery>
File:Aosong am2301 top.jpg|<small>AM2301, top</small>
File:Aosong am2303 top.jpg|<small>Device, top</small>
File:Aosong am2301 bottom.jpg|<small>AM2301, bottom</small>
File:Aosong am2303 bottom.jpg|<small>Device, bottom</small>
File:Aosong dht11 top.jpg|<small>DHT11, top</small>
File:Aosong am2303 pcb top.jpg|<small>PCB, top</small>
File:Aosong dht11 bottom.jpg|<small>DHT11, bottom</small>
File:Aosong am2303 pcb bottom.jpg|<small>PCB, bottom</small>
File:Aosong am2303 sensor.jpg|<small>DS18B20</small>
File:Aosong am2303 debris.jpg|<small>Debris</small>
</gallery>
</gallery>


See the [http://sigrok.org/gitweb/?p=sigrok-dumps.git;a=tree;f=am230x am230x] directory for example capture files.
=== Aosong DHT11 ===
 
<gallery>
File:Aosong dht11 top.jpg|<small>Device, top</small>
File:Aosong dht11 bottom.jpg|<small>Device, bottom</small>
File:Dht11 pcb open.jpg|<small>Device PCB, open</small>
File:Dht11 pcb top.jpg|<small>Device PCB, top</small>
File:Dht11 pcb bottom.jpg|<small>Device PCB, bottom</small>
</gallery>


== Protocol ==
== Protocol ==
Line 34: Line 146:
== Resources ==
== Resources ==


* [http://www.aosong.com/en/home/index.asp Aosong] (vendor website)
* [http://www.aosong.com/en/home/index.asp Aosong website]
** [http://www.aosong.com/en/products/details.asp?id=110 AM2301] ([http://meteobox.tk/files/AM2301.pdf datasheet])
** [http://www.aosong.com/en/products/details.asp?id=117 AM2302] ([http://www.adafruit.com/datasheets/Digital%20humidity%20and%20temperature%20sensor%20AM2302.pdf datasheet])
** AM2303 ([http://www.aosong.com/asp_bin/Products/en/AM2303.pdf datasheet]
** [http://www.aosong.com/en/products/details.asp?id=109 DHT11] ([http://akizukidenshi.com/download/ds/aosong/DHT11.pdf datasheet])
* [https://learn.adafruit.com/dht/ Adafruit: DHT sensor tutorial]
* [https://learn.adafruit.com/dht/ Adafruit: DHT sensor tutorial]
** [https://github.com/adafruit/DHT-sensor-library GitHub: Adafruit DHT-sensor-library]
** [https://github.com/adafruit/DHT-sensor-library GitHub: Adafruit DHT-sensor-library]
* [http://playground.arduino.cc/Main/DHTLib arduino.cc: DHTLib]
* [http://playground.arduino.cc/Main/DHTLib arduino.cc: DHTLib] Contains a mapping of common renames


[[Category:Protocol decoder]]
[[Category:Protocol decoder]]

Latest revision as of 21:36, 30 May 2015

am230x
Aosong dht11 top.jpg
Name AM230x/DHTxx/RHTxx
Description Aosong AM230x/DHTxx/RHTxx humidity/temperature sensor protocol
Status supported
License GPLv2+
Source code decoders/am230x
Input logic
Output am230x
Probes SDA
Optional probes —
Options device

The am230x protocol decoder decodes the Aosong AM230x/DHT11 temperature and humidity sensor single-wire protocol.

Hardware

See the am230x directory for example capture files.

Models

Model Microcontroller Temperature Humidity Datasheet
Aosong AM2301 Unknown SOIC-10 ? ? PDF
Aosong AM2302 ST STM8S103F3 (8S103F3P6), SOIC-20 analog analog PDF
Aosong AM2303 ST STM8S103F3 (8S103F3P6), SOIC-20 Dallas DS18B20 analog PDF
Aosong AM2305 ? ? ? PDF
Aosong AM2306 ? ? ? PDF
Aosong AM2320 ? ? ? ?
Aosong AM2321 ? ? ? ?
Aosong AM2322 ? ? ? ?
Aosong DHT11 Unknown SOIC-14 analog analog PDF
RTH03 ? ? ? https://www.sparkfun.com/products/10167

These parts are often renamed or rebadged.

Aosong AM2301

  • Device, top

  • Device, bottom

  • Device PCB, open

  • Device PCB, top

  • Device PCB, bottom

Aosong AM2302

  • Device, top

  • Device, bottom

  • PCB, top

  • PCB, bottom

  • STM8S103F3

  • Sensor

  • Debris

Aosong AM2303

  • Device, top

  • Device, bottom

  • PCB, top

  • PCB, bottom

  • DS18B20

  • Debris

Aosong DHT11

  • Device, top

  • Device, bottom

  • Device PCB, open

  • Device PCB, top

  • Device PCB, bottom

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

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