UART
Define voltage, baud rate and flow control.
Appareils et modes de connexion
Spécification, connexions et conseils d’implémentation de Appareils et modes de connexion.
USB CDC
Treat reads as a continuous byte stream.
Bluetooth serial
Handle disconnect, fragmentation and reconnect.
TCP serial bridge
Preserve protocol bytes without added text.
Integration principle
Keep handshake, parser, subscription and PTT lease state per port; moving or transmitting equipment must retain a manual stop path.