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    Topics created by pikim

    • pikim

      (SOLVED) Sensebender Gateway and HomeAssistant: where does the battery level come from?
      Development • • pikim  

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      No one has replied

    • pikim

      Sensebender Gateway (SAMD21)
      Development • • pikim  

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      pikim

      Just for completeness: the right way to do this is to add the json under ~/.platformio/boards and the other files as described in https://community.platformio.org/t/how-use-a-same-chip-but-with-different-environment/18082/4
    • pikim

      RPi gateway options
      Development • • pikim  

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      pikim

      OK, now I understand what you meant. And I was talking about immediately building an all-in-one gateway with W5100, RS485, NRF24 and RFM69. That would require 2 SPIs and 2 USARTs. Taking that into account the ATmega324PB would be a perfect match. And, indeed, I wanted to build it step-by-step and only wire the according MCU pins to pinheads to extend it later. The big downside of the ATmega324PB is the 5V voltage level @ 16MHz and the limited memory. I compiled the sketch from the all-in-one gateway and came up with about 95% flash usage. So there's not much space left for the future. And I think 16MHz would make sense for the gateway and 8MHz could be a bit slow. 12MHz@5V would be in spec, but 12MHz is quite uncommon.
    • pikim

      MySensors @ Raspberry Pi without gateway
      Hardware • • pikim  

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      ejlane

      I'm not really familiar with FHEM, but as far as the MySensors side, you still need the gateway software running. However, this code can run directly on a Raspberry Pi, at least with a radio network for the MySensors transport. I haven't ever used RS485 myself, but I would think it would be similar. At least the code itself has sections for dealing with running on Linux, which is what is used when running it on the RPi, so I think you're good. https://github.com/mysensors/MySensors/blob/master/hal/transport/RS485/MyTransportRS485.cpp The gateway code runs as a systemctl service, so it can easily run in parallel with most things, so probably wouldn't conflict with FHEM on the same device. Oh yeah, and in case you haven't found it, there's this page: https://www.mysensors.org/build/rs485
    • pikim

      Support CAN transceiver benefits
      Feature Requests • • pikim  

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      pikim

      OK, thanks. I'll have a look at it.