2 ## This file is part of the libsigrokdecode project.
4 ## Copyright (C) 2014 Johannes Roemer <jroemer@physik.uni-wuerzburg.de>
6 ## This program is free software; you can redistribute it and/or modify
7 ## it under the terms of the GNU General Public License as published by
8 ## the Free Software Foundation; either version 2 of the License, or
9 ## (at your option) any later version.
11 ## This program is distributed in the hope that it will be useful,
12 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 ## GNU General Public License for more details.
16 ## You should have received a copy of the GNU General Public License
17 ## along with this program; if not, write to the Free Software
18 ## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 This decoder handles the proprietary single wire communication protocol used by
23 the AM230x series of digital humidity and temperature sensors.
26 A sample rate of at least 200 kHz is recommended to properly detect all the
27 elements of the protocol.
30 The DHT11 digital humidity and temperature sensor uses the same single wire
31 protocol with a different encoding of the measured values. Therefore the option
32 'dht11' must be used to properly decode the communication of a DHT11 device.