• 0 Posts
  • 10 Comments
Joined 1 year ago
cake
Cake day: July 2nd, 2023

help-circle


  • Sometimes it’s not about typing.

    In the electronics works the us a serial protocol called SPI Serial Peripheral Interface.

    In schematics we might have a micro controller that connects to several sensors or memory chips on a pair of pins, 1 each for transmit and receive.

    The micro controller is the master and the common nomenclature for the pin names is MISO and MOSI MasterInSlaveOut and MasterOutSlaveIn.

    This overcomes confusion with regard to using things like TXD and RXD.

    Wokeness has now suggested a bunch of alternatives.

    PICO PeripheralInControllerOut and POCI… are the 2 leading alternatives.

    Problem is I now have data sheets and schematics going back to the 1980s

    It’s bullshit to me.

    Words can have more than one meaning. Context and meaning matter.

    I just want design cool electronics.








  • My pending or existing projects.

    A software defined radio server. Lives up top of an antenna mast running off PoE with an RTL tuner connected.

    ADSB receiver, similar to above, but on a fixed frequency.

    The above 2 could be virtualised in theory, but there is an advantage in having the cable to the antenna short and thus the sbcs live up antenna masts in an enclosure.

    MMDVM hotspot for ham radio (this might not count as it HAS TO use the gpio pins on the pi, this can’t be visualised even with a USB port passed through.

    As an audio server that would bitstream 24bit/96kHz to an amp.