Just to remind myself, because I keep having to look this up: you can reset a Pico by setting the USB serial port baud rate to 1200, like so:
`stty -F /dev/ttyACM0 1200`
#pico
@th it's an explicit feature; I think it's a pretty neat idea, using the (effectively pointless) baud rate for OOB signaling.
@th @elb oh, of course it's been done.
https://www.youtube.com/watch?v=ElmhYLk4Pyg
@elb @scruss @phooky turns out that is *not* Hellschreiber, it's a Bélinographe https://fr.wikipedia.org/wiki/B%C3%A9linographe
@th @elb @scruss If you haven't already seen it, the Secret Life of Machines episode about fax machines has a terrific bit (about 5:20 in) about Pantelegraphes, which date to the 1860's.
https://www.youtube.com/watch?v=yuUyt9RG7pk
@phooky @th @elb the SLoM episode is good
The drum + photocell on a lead screw was used in lots of things like photo wires, duplicator 'spark' copiers and drum scanners (into the early 2000s)
Hellschreiber is an analogue dot-matrix printer. It can't send images more than 7px high, so it's mostly text Sync errors make the text go all wavy. The K3NG keyer for Arduino still (I think) has Hellschreiber sending
@th @elb now you have me wondering if there was ever an acoustic coupler for the model 15...