Discussion in 'Amateur Radio Software' started by W5GX, Mar 28, 2019.
I'm a glutton for punishment.
Are you using XON/XOFF flow control ?
Only if the USB-TTL board is doing that be default. I built up the interface shown in my previous post on a small breadboard, and it didn't work.
XON/XOFF is done in software, Instead of using Hardware flow control.
No flow control may be your problem.