I waiting for STM (ARM0) and usbC and meybe better power (step-up-down from 1-12V?) I can emergency use any AA, 18650, 12V from my car, solar panel etc. And meybe integrated sound cable for baofeng/quansheng (K1<->USBA) USBA as powerbank and Packet radio or http://reticulum.network

stil without terminal , brew and cc

You ask about sendin morse code trought wifi using normal wifi card/modem? Interesting idea. Meybe exist any root usb dongle wifi card. But I dont know any models.

RFID have small distance yes BT and RFID is ok but wifi im more popular and long working distance

Normal talk in unices system can do that.

Irc have exange data between server and minimalize data trafic.

still irc is better, but meybe in future

There was also `write` [0]. It would literally parse /etc/utmp [1] to find out which terminal the recepient user was logged on, then it would open that terminal and write(2) the message to it. Ah, wonderful user isolation.

[0] https://man.cat-v.org/unix-6th/1/write

[1] https://man.cat-v.org/unix-6th/5/utmp

I still use posix write [1] if there is an incident and i want to talk to the other admins that all try to fix sth. Quite fünf AS the younger ones are always Quote puzzled and feel caught...

[1] https://manpages.org/write

not + -

https://www.youtube.com/watch?v=yCLb2eItDyE 10km in wifi, usualy 100m not 10m

> How to send a message when the wifi devices only pass each other for a few or a few tens of seconds for example.

I took that to mean pretty close.