[172] Bresser Weather Center 6-in-1 : help for parameters receiver wrote in language C #3196

[Mike59FR]

Hello,
I would like to develop a receiver in C language (arduino) around the RFM95 chip to receive information from my weather station. My RFM95 receiver works because I receive information from an 868 MHz transmitter. In your opinion, what is the value of each parameter of my program in C language please :
state = radio.setFrequency(868.349); !<-- OK détecté par RTL_433
state = radio.setBitRate(10); is good ?
state = radio.setFrequencyDeviation(5.0); is good ?
state = radio.setRxBandwidth(250.0); is good ?
state = radio.setOutputPower(10.0); is good ?
state = radio.setCurrentLimit(100); is good ?
state = radio.setDataShaping(RADIOLIB_SHAPING_0_5); is good ?

Thanks for your help.
Test_FSK_Modem-Recepteur.ino.txt

In PJ my source program.

[zuckschwerdt]

The Bresser 6-in-1 has a FSK deviation of 12kHz. Bandwidth depends on how precise you match the center frequency and could be as low as 50 kHz I'd say. Bitrate is ~8 kBps.

[Mike59FR]

THANKS.
And may I ask how you got this information.
Good evening (France)

[zuckschwerdt]

There are some sample files in the tests repo https://github.com/merbanan/rtl_433_tests/tree/master/tests/bresser_6in1/01 and you can measure the waveform with e.g. https://triq.org/pdv/