#rtl_433 — Public Fediverse posts

Hi unknown neighbor. Your weather station is my weatherstation thanks to rtl_433. Thank you.

#sdr #rtl_433 #rtl_sdr #radio

me: *pipes rtl_433 output as JSON into a Python script*

Python script: *crashes and exits after an hour due to a network error*

rtl_433: *continues on as if nothing has happened*

Sure, ignoring SIGPIPE is definitely the right course of action here. 🙄

#rtl433 #rtl_433

I'm trying to receive a weather station at 868.3 MHz as well as some heat cost allocators and water meters at 868.95 MHz, both via #rtl_433.

Up until now, I did this using

rtl_433 -f 868.3M -f 868.95 -H 15 -s 250k -Y autolevel -Y magest -M noise -M level

i.e. frequency hopping. But shouldn't I be able to capture both frequencies simultaneously with a higher sample rate? But with "-f 868.3M -s 2M" nothing shows up anymore at all.

Edit: Solved! https://chaos.social/@scy/113068997126643230

#SDR #rtl433

Welp! Turns out the wireless temperature sensor won’t report higher than 140°F due to a sanity check in #rtl_433. Fortunately the wired temperature sensor tracked the temperature all the way up to 164°F today. And it wasn’t even sunny all day!

#solarkiln #solar #homeassistant #esphome #homeautomation #woodworking #sawmill

@derek @selea
Indoors I also use several Aqara #Zigbee sensors and #Zigbee2MQTT to get the data into #HomeAssistant. Placing one of those (indoor) sensors outside wasn’t all that successful.
Now I have a Lacrosse TX141W weather station outside that transmits on 433MHz and use #OpenMqttGateway running on an #Esp32 #LoRa board to receive those messages. There many sensors that are supported by the #rtl_433 and #rtl_433_ESP libraries that can be used.

I've been running #rtl_433 for a few days now, logging all the data, just to see what else I can read, and besides THREE weather stations, I've also found a couple of "TPMS" devices - Tire-pressure monitoring systems. These sensors have been mandatory in all new cars for almost 10 years now, and as it turns out they use the same 433MHz frequency as all these other systems.

Meaning, I can listen to my car's tires reporting their pressure every ~2 minutes, and when the transmissions stop, the car is no longer home!

If this works reliably will depend on your car, as the reporting times change drasically between brands. Some tires seem to have a standby mode that'll report only very spordically when the car's parked, but it seems I got lucky.

Arduino Library Brings rtl_433 to the ESP32 - If you have an RTL-SDR compatible radio there’s an excellent chance you’ve heard o... - https://hackaday.com/2023/01/13/arduino-library-brings-rtl_433-to-the-esp32/ #microcontrollers #wirelesssensors #homeautomation #homehacks #ismband #rtl_433 #mqtt

Connecting Commercial 433 MHz Sensors to MQTT and Home Assistant with RTL-SDR - When [Elixir of Progress] was looking at setting up environmental sensors around t... - https://hackaday.com/2022/12/26/connecting-commercial-433-mhz-sensors-to-mqtt-and-home-assistant-with-rtl-sdr/ #wirelesshacks #homehacks #rtl-sdr #rtl_433 #433mhz

The #rtl_433 run continues and finally found a weather sensor. Weird it didn't show up all night till things warmed up a bit. Maybe dying battery needed some more heat to start to transmit? Have temperature and humidity at least now. Would be interesting to plot all temperature readings from the tire sensors and this wx sensor on a graph over time to see how linked they are. Looks like the tire sensors are all >+7C over the real weather sensor #sdr #wx #rtlsdr

Let rtl_433 run last night to see if I could find a new weather station in the neighborhood since the old one went away. Doesn't look to be any new ones in range though thinking I could use lowest tire temperature I see from TPMS tire readings I can pick up. #sdr #rtl_433 #wx

Tuning into Medical Implants with the RTL-SDR - With a bit of luck, you’ll live your whole life without needing an implanted medic... - https://hackaday.com/2021/07/11/tuning-into-medical-implants-with-the-rtl-sdr/ #software-definedradio #medicalimplant #medicaldevice #medicalhacks #radiohacks #rtl-sdr #rtl_433

Cheap Sensors and an SDR Monitor Conditions in this Filament Drying Farm - We don’t know where [Scott M. Baker] calls home, but it must be a pretty humid place indeed. After... more: https://hackaday.com/2019/09/14/cheap-sensors-and-an-sdr-monitor-conditions-in-this-filament-drying-farm/ #printerfilament #3dprinterhacks #temperature #attiny85 #humidity #pressure #rtl_433 #315mhz #bme280 #sensor #syn115 #ism #sdr