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Tool/software:
I have been trying to get a package from the RF Link Transmitter - 434MHz - WRL-10534, an RF remote, and a Screw on TPMS sensor. So far I am not able to receive any packages from any of these devices I know it modulation format and the base frequency of the devices from using the RTL_433 and a SDR dongle, and I know that the board is receiving signals from the devices by looking at the Continuous RX Mode in Smart RF Studios but I am not able to receive the packaged data. Is there a software that I can use to locate the Baud rate or Channel spacing for any of these devices? I tried using packet sniffer but haven't been able to get any data.
Hi,
What modulation is the device using? Is it transmitting at exactly 434 MHz? Do you know the preamble and sync word being transmitted?
For TMPS: See an an example e2e.ti.com/.../cc1101-receiving-tpms-data-packets-from-atmel-ata5754-and-or-nxp-freescale-fxth871xd
For the RF Remote it's ASK-OOK Modulated and it is at 433.92 MHz / (the information is on the back of the remote) no preamble or sync word
I was able to pick up the signal and transmit it using and Arduino board and this code
https://www.instructables.com/Decoding-and-sending-433MHz-RF-codes-with-Arduino-/
But still not able to pick up any signal from the CC1101
For The Screw on TPMS It is 433.875 - 434 MHz but centered at 433.925 MHz it is in FSK modulation from What I got from the RTL_433 with a preamble of 0x55555's and a sync word of 0xdd33 The code for the RTL_433 is here
https://github.com/merbanan/rtl_433/blob/master/src/devices/tpms_jansite_solar.c
I also found some settings to input into the Register View found here
https://www.hackster.io/jsmsolns/arduino-tpms-tyre-pressure-display-b6e544#cad
But was still not able to find any packages
At this point I feel like my CC1101L Module might be broken as I can see the Spikes in Continuous RX but not receive anything from Packet RX