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    • T

      Adding MCP23017 on i2c
      Official EVOK API • i2c mcp2308 • • tradlost.se

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      @tradlost.se Basically yes, but since I do not know much about your board it is hard to tell.

    • H

      Is there I2C communication for L203 model?
      UniPi Neuron Series • i2c l203 neuron pi • • HarishKumar

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      @HarishKumar The internal communication is little bit modified Modbus, I suggest you to use the TCP Modbus: https://github.com/UniPiTechnology/neuron_tcp_modbus_overlay

      The map of the TCP Modbus registers can be found at http://downloads.unipi.technology

    • F

      Mervis is slow
      Mervis • mervis i2c slow • • FransSleddens

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      @tomas_hora,

      I have one 1-wire temp -meter and 2 external I2C relay-cards (emorelay-boven and emorelay-beneden).
      These relay-cards and the unipi card are supplied by separate adapters, so the grounds are not coupled.
      Can this have influence on the speed?

      if in the program 2 relays are switched at the same time (each relay on a separate relay card), i can see that they are switched one after the other. at least 0.5 sec after each other.

      I would be nice if all relays could be switched in 100ms.

      I use the older mervis runtime (version 2.5) on a Rasberry Pi B+, is the last runtime faster or is there no difference is speeds.

      Kind regards,

      Frans.