A surprisingly complex project ;-) For another alternative, the ever prolific Geoff Graham and co. have developed an amazingly versatile BASIC interpreter for the Pi Pico:
https://geoffg.net/picomite.html m On Fri, Nov 11, 2022 at 9:06 PM Cameron Kaiser via cctalk < cctalk@classiccmp.org> wrote: > >>> I am looking for a device that sits transparently in an RS-232 serial > line > >>> and upon seeing a particular code go over the serial line ((or > sequence of > >>> codes) will actual a relay (or a transistor). Something with two DB25s > or > >>> DE9s and is configurable to what code will trigger the output? Some > kind of > >>> box? > >> > >> not that it's easy but a raspberry pi could be set up to watch the > serial > >> line. > > > > Or even cheaper, and Arduino uno > > I second the Arduino recommendation. I have a Power Mac G4 with a serial > dongle > that drives an Arduino Nano-based IR blaster. It sends serial commands to > it > and the blaster transmits a signal to the room air conditioner. Should be > easy > to adapt the GPIO pins to a relay. Arduino programming and interfacing is > pretty straightforward. > > > https://oldvcr.blogspot.com/2022/10/ir-controlling-new-air-conditioner-in.html > > -- > ------------------------------------ personal: > http://www.cameronkaiser.com/ -- > Cameron Kaiser * Floodgap Systems * www.floodgap.com * > ckai...@floodgap.com > -- The more corrupt the state, the more numerous the laws. -- Tacitus > --------- > >
