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Wio-sx1262 rpi4 problems with signal #81

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opened 2026-10-27 09:32:08 +01:00 by adam · 2 comments
adam commented 2026-10-27 09:32:08 +01:00
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Hello
I'm running in to a problem with my SX1262. The noise floor seems to be at -120dbm and pings fail all the time. I got a sucess here an there but mostly it fails (RSSi=0), i bought a new radio but it is exactley the same and I even tried a few antennas. It does detect nodes (all of them seems to be in range of -113db to -115db except my client that is next to it is seen as -37db). I tried different sertings but no luck.
Frequency 869.618 MHz
Spreading Factor 8
Bandwidth 62.5 kHz
TX Power 22 dBm
Coding Rate 4/8
Preamble Length 17 symbols

I also tried pullups on the spi line but nothing works.

Hello I'm running in to a problem with my SX1262. The noise floor seems to be at -120dbm and pings fail all the time. I got a sucess here an there but mostly it fails (RSSi=0), i bought a new radio but it is exactley the same and I even tried a few antennas. It does detect nodes (all of them seems to be in range of -113db to -115db except my client that is next to it is seen as -37db). I tried different sertings but no luck. Frequency 869.618 MHz Spreading Factor 8 Bandwidth 62.5 kHz TX Power 22 dBm Coding Rate 4/8 Preamble Length 17 symbols I also tried pullups on the spi line but nothing works. <!-- github-sync-id:4304559243 -->
adam closed this issue 2026-10-27 09:32:08 +01:00
adam commented 2026-10-27 09:32:09 +01:00
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I just saw this in the logs
[RX] CRC error #1 - RSSI=-120dBm, SNR=-12.8dB, SignalRSSI=-127dBm, Length=134, NoiseFloor=-120.1dBm, DeviceErrors=0x0000, IRQ=0x0042, RawData=11070168185bc3bcdc7831705933a29acc6d86c5950555339285c73b0555239214b471df9e5e007400f4cfe769a62ecd41047c903978b14a5d87b15453394bf36474b0b2afd907b309d05cd1b91fa2c57c561d9a891f2c43ab578c4b1756931feaa8ed7d71b6ea30a3a7f6970692aee2d0022a64fd0048552d56412d6861316d705f76616369

I just saw this in the logs `[RX] CRC error #1 - RSSI=-120dBm, SNR=-12.8dB, SignalRSSI=-127dBm, Length=134, NoiseFloor=-120.1dBm, DeviceErrors=0x0000, IRQ=0x0042, RawData=11070168185bc3bcdc7831705933a29acc6d86c5950555339285c73b0555239214b471df9e5e007400f4cfe769a62ecd41047c903978b14a5d87b15453394bf36474b0b2afd907b309d05cd1b91fa2c57c561d9a891f2c43ab578c4b1756931feaa8ed7d71b6ea30a3a7f6970692aee2d0022a64fd0048552d56412d6861316d705f76616369` <!-- github-comment-id:4291282745 -->
adam commented 2026-10-27 09:32:10 +01:00
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I solved the issue. It was a hardware problem. I needed to define rxen_pin and connect it to WIO-SX1262 to RF_SW pin. I'm sorry for opening an issue, but I found barely any info for this board.

Here is my working config for Seedstudio WIO-SX1262:
sx1262: bus_id: 0 busy_pin: 23 cs_id: 0 cs_pin: 21 irq_pin: 26 is_waveshare: False reset_pin: 22 rxen_pin: 20 rxled_pin: -1 txen_pin: -1 txled_pin: -1 use_dio3_tcxo: true dio3_tcxo_voltage: 1.8 use_dio2_rf: true

Thank you for you work!

I solved the issue. It was a hardware problem. I needed to define rxen_pin and connect it to WIO-SX1262 to RF_SW pin. I'm sorry for opening an issue, but I found barely any info for this board. Here is my working config for Seedstudio WIO-SX1262: `sx1262: bus_id: 0 busy_pin: 23 cs_id: 0 cs_pin: 21 irq_pin: 26 is_waveshare: False reset_pin: 22 rxen_pin: 20 rxled_pin: -1 txen_pin: -1 txled_pin: -1 use_dio3_tcxo: true dio3_tcxo_voltage: 1.8 use_dio2_rf: true` Thank you for you work! <!-- github-comment-id:4298057437 -->
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Reference: adam/pyMC_Repeater#81