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    Posts made by Threestars

    • Arduino + RS-485 + Ethernet + Radio

      Dear associates!
      I ask to help me with the solution of a task:
      I try to realize a gateway on basis of Arduino UNO, which is possible to connect sensors on RS-485 and RFM69 radio interfaces.
      The Arduino is required to be connected in local network.
      For this I plan to connect MAX485 module with AltSoftSerial library according to the following scheme:
      D8 -> RO,
      D9 -> DI,
      D10 -> not used,
      D2 -> RE/DE.
      At the same time I plan to put the Ethernet W5100 module which standard scheme:
      D13 -> SCK,
      D12 -> MISO/SO,
      D11 -> MOSI/SI,
      D10 -> SS/CS.
      And the RFM69 module with the adjusted scheme:
      D7 -> DIOO,
      A2 -> MISO,
      A1 -> MOSI,
      A0 -> SCK,
      D6 -> NSS.
      I'm not sure for 100% that Arduino will be able to support all these modules at the same time.
      But that most of all concerns me, this simultaneous use of pin D10 - MAX485 and W5100 modules.
      What I can make in this situation? Whether modules will work or what changes it will be required to make?

      posted in Hardware
      Threestars
      Threestars
    • RE: RFID Card reader - Wiegand

      @AWI
      Dear AWI, thank you very much, I will try!😃

      posted in My Project
      Threestars
      Threestars
    • RE: RFID Card reader - Wiegand

      @AWI
      Dear AWI,
      I can ask you to print out the sketch CardDB.h /.cpp? I'm afraid it isn't rather skilled to write independently it. Thank You.

      posted in My Project
      Threestars
      Threestars
    • RE: RFID Card reader - Wiegand

      @AWI
      Dear AWI! Good work!
      I used ready solutions of control of access in the practice.
      Now I study Arduino and want to try to repeat your experiment.
      I have a question to you: tell please what contains in the CardDB.h file?
      As for the reader, for activation of the beeper and a led you use transistor assemblies in addition? Connecting +5 volts on them with Arduino, as on the scheme, for example:
      0_1480168494166_5-12V.png

      posted in My Project
      Threestars
      Threestars