-
Notifications
You must be signed in to change notification settings - Fork 2
New issue
Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.
By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.
Already on GitHub? Sign in to your account
Sensor Data help? #12
Comments
The humidity and pressure reading isn't supported yet. The humidity data from BZ-NEXTGEN payload is a big mistake in data formatting from me. I was sending the debug data through the humidity byte, which was displayed in the wrong way on SondeHub. Franek |
Thanks for the quick reply! Rob |
I know the issue with the Si4032 chip is the 625 Hz "granularity", but I wonder if anyone has tried decoding using "odd tone spacing" with direwolf? In the configuration file (direwolf.conf) you can specify the tones. Could I just use the FSK (radio mode 2 or maybe GFSK 3)? Rob |
I don't know anything about the APRS on the Si4032, apart from the overview of how it could be done, I'll do some research on it. The FSK modes in the RS41-NFW are just an implementation of modulation activation in the radio IC. I didn't have any success in writing data to the buffer and sending them using FSK/GFSK. However, the Si4032 doesn't support APRS from the factory, due to the APRS AFSK modulation. In rs41, it is achieved by a fast tone generation by changing the frequencies. In other projects the APRS mode is kind of a hack. Also, I think that the rs41 won't be the most reliable remote weather station. I think that simply using a (quick example) BME280-kind of a sensor connected to a simple MCU (ATmega, stm32) and implementing communication via some kind of a known radio IC (worth mentioning is a superior LoRa on SX12xx chips) would be better. The sensors built into rs41 are built to measure wide ranges of parameters (temp. -100 to 200 °C, 0-1050 hPa are ranges that could be easily achieved with it, humidity is 0-100%RH but it is very inaccurate due to a simple capacitive sensor implementation) but their accuracy isn't the best. Uploading to APRS portals can be implemented with simple iGates (LoRa is used in some projects, too), unless you need an actual radio signal. Regards, |
All that is true, but this is more of an academia activity with already gathered sondes than a real project. At least that is the plan. Rob |
I have several RS41-SGP (F100 chip) sondes with the daughterboard. I would like to read all sensor data and send APRS weather data directly from the Sonde. I understand the APRS mode is not supported yet (and may not be), but my issue is that I don't seem to be able to find where the sensors are read. I believe these are on the same SPI bus as the radio (and EEPROM where supplied)
Reading through the code of V30, I don't see anything about relative humidity or pressure, but I see it reported with BZ-NEXTGEN payload (zanco). I see xdata stuff, but assumed those are sensors connected on the external connector.
Can you point me in the right direction?
Thank you!
Rob Giuliano
KB8RCO
The text was updated successfully, but these errors were encountered: