Avoiding wireless connections - EmonTX serial RPiZero solution

Hardware
11

I have a couple of Pi Zero WH (wireless & header pins) that I could use; but looking at the amazing work @borpin did in the thread linked to above EmonTX to Rpi - Direct Serial Connection (specifically posts from Mar 24 onwards) I am happy that I could make a reasonable stab at the physical aspects of the project, but the software / coding is daunting…

  1. I can find the emonHub interfaces section within my emonPi, but is there another one within the emonTx web interface, or just this change only need doing on the emonPi?

  2. Is Glyn’s “1. EmonHubTx3eInterfacer” or “2. EmonHubSerialInterfacer” best in this situation?

  3. For the PiZero header pins > emonTx UART; I see that @borpin used
    5.0 vDC > 5V (red)
    GND > GND (black)
    TxD > Tx (blue)
    RxD > Rx (green)

  4. @pb66 wrote “you can simply add a chip reset wire and use avrdude with rpi-avrdude as described in the rfm2pi wikis”. Hmmm, no idea where to start with this one :smile:

  5. Continuing to read the other thread … and I am now officially lost. Too much talk of avrdude, hex, Pio & rfm2pi. Where do you guys all learn how to do all of this? #impressed :sunglasses:

Off to grab a cold beer.

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