Hello,
I’ve been trying to get the Maestro micro module to control 3 servo motors for a few hours. I have it connected to a Toradex Ixora on the UART2 port, which should be RS232. I have linux on this PC. I have connected Rx to Tx and Gnd. I also have the power supply pulled from this PC 5VDC/6A. I try to send the command
echo -ne ‘\xAA’ > /dev/apalis-uart2
to Maestro, but every time the red LED comes on. The setting on the Toradex is
stty -F /dev/apalis-uart2 9600 cs8 -parenb -cstopb -crtscts
Settings on Control center is UART, fixed baud rate 9600 and disabled CRC. At the same time as this connection I have the Maestro connected via USB to a Win PC to the Control Center where I can control everything without any problem, but as soon as I send a command from the Toradex to the UART and the red LED comes on, I see Serial signal error in Windows. I have tried everything but I am not able to control the module via UART. The only thing I can think of is that the TTL and 232 logic would not be compatible, but in theory it should work no?
Here in a datasheet at chapter 3.11 for Toradex PC is about UART, I am not sure about a logic:
And here is about TTL logics:
Thanks a lot in advance