I need to use the serial transmitter to test some specific UART commands. Here is the issue –
- I downloaded the pololu serial transmitter v1.3 from your website
- I try to connect this to the 12-channel USB servo controller (command port as well as TTL port)
- The transmitter programmer gives an error – unable to open port COM3 (COM4)
I am able to use the servo board correctly using the “maestro control center”. Please help.