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    LoRa (433 old) LoRa V1.1

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    • S
      s1y99
      last edited by s1y99

      weiß jemand wie man ein neues V1.1 LoRa Modul so jumpert
      das es mit dem alten Modul kompatibel ist, der Support schweigt sich aus und hat scheinbar auch keine Ahnung

      felmueF 1 Reply Last reply Reply Quote 0
      • felmueF
        felmue @s1y99
        last edited by felmue

        Hello @s1y99

        reading your other post, I think you already figured that out yourself. It's not possible to jumper LoRa V1.1 so the same GPIOs are used as it were for the older LoRa module.

        Both LoRa modules use the same GPIOs for MOSI (23), MISO (19) and SCK (18). However RST and IRQ cannot be jumpered the same; CS/NSS can be jumpered the same.

        LoRa (433 old): RST(26), IRQ (36), CS/NSS (5)
        LoRa V1.1: RST(25/13), IRQ (35/34), CS/NSS (0, 15, 12, 5)

        Note: GPIO numbers above are for an M5Core (Basic).

        Please also see schematics here and here.

        Just curious. What is preventing you from modifying your firmware to use the GPIOs of the newer LoRa module?

        Thanks
        Felix

        GPIO translation table M5Stack / M5Core2
        Information about various M5Stack products.
        Code examples

        1 Reply Last reply Reply Quote 0
        • S
          s1y99
          last edited by

          Very simple, the firmware is available as a binary file and is not open source. I'm sorry, but your answer is not helpful. How do I have to jumper the V1.1 board so that it works like the old one? I've already seen the graphics, but they're a confusing mess.

          felmueF 1 Reply Last reply Reply Quote 0
          • felmueF
            felmue @s1y99
            last edited by

            Hello @s1y99

            I am confused. Your own firmware, the one you write for your M5Core (which talks to the LoRa module), is closed source? How come? Are you not writing your own firmware?

            I already wrote that it is not possible to jumper LoRa V1.1 the same as the older one, please see my previous post.

            MOSI, MISO, SCK and CS/NSS can be setup to use the same GPIOs, however RST and IRQ cannot be jumpered to be the same.

            So in conclusion: If for whatever reason the firmware running on M5Core (controlling the LoRa module) cannot be modified then it is not possible to substitute the older LoRa module with the new one.

            Thanks
            Felix

            GPIO translation table M5Stack / M5Core2
            Information about various M5Stack products.
            Code examples

            1 Reply Last reply Reply Quote 0
            • S
              s1y99
              last edited by

              Okay, at least that's a clear statement. Then I'll convert the old modules to an SMA connector. The software is called APRSCube, by the way, and it was a good advertisement for M5Stack modules...
              Thank you very much.

              felmueF 1 Reply Last reply Reply Quote 0
              • felmueF
                felmue @s1y99
                last edited by

                Hello @s1y99

                ok, now I understand - thank you for clarifying about the closed source M5Core firmware.

                BTW: for RST and IRQ you could set no jumper and then solder a wire each to the desired GPIO on the M5Stack bus connector.

                Thanks
                Felix

                GPIO translation table M5Stack / M5Core2
                Information about various M5Stack products.
                Code examples

                1 Reply Last reply Reply Quote 0
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