This repository contains AURIOL H13726 / Ventus W155 weather stations radio transmissions decoder application for Raspberry Pi. Application obtains data through a 433.92 MHz RF wireless receiver module (AUREL RX-4MM5++/F, simple chinese XY-MK-5V or other similar) connected to GPIO pin, decodes this data, prints it to stdout and saves in SQLite database.
doc- additional documentationreader- decoder applicationscripts- some scripts to makeauriol-readerwork continuously and start after rebootwww- some examples of primitive web pages showing data received byauriol-reader
- This project uses Wiring Pi library (http://wiringpi.com/) so it should be installed first.
- Secondly the
libsqlite3-devpackage is required. - Clone this repository,
cdintoreaderdirectory, executemakeand project should compile.
- connect receiver module output signal to Raspberry GPIO27
- execute application with root privileges:
sudo ./auriol-reader - observe decoded data on standard output and in
/var/local/auriol-db.sl3database
- If different GPIO pin must be used check how pins are numbered in Wiring Pi (http://wiringpi.com/pins/) and modify constant
RECIEVE_PINinreader/auriol-reader.csource code file (e.g. GPIO27 is pin 2 in Wiring Pi). - If nothing is visible on
stdoutthat means decoder cannot recognize incoming impulses and some calibration might be needed - please checkreader/auriol-reader.cfor constantsSYNCHRO_LENGTH,SEPARATOR_LENGTH,ZERO_LENGTH,ONE_LENGTH,LENGTHS_MARGIN. Setting these constants to proper values is critical for the decoder to be able to recognize data in incoming transmissions from weather station instruments. Note thatauriol-readerconsumes 100% CPU (because of constantly polling GPIO pin connected to receiver hardware) and running other process with heavy CPU usage will result in slower GPIO polling so the decoder simply won't recognize data for given constants configuration. You may also want to tweak these values on newer, faster Raspberry Pi models (faster than my own Model B Revision 2.0).