Discussions

I'm looking for a small board (Rpi-size) that will run Dronekit AND has 4 real hardware serial ports.

I don't want to use USB->RS-232 converters, or bit-bang the pins.  I need 4 real, hardware UARTS. 

And it would be a bonus if the RS-232 ports were 5V tolerant.

Does such a board exist?