Can UART or FTDI serial work with communication in only one direction? Answered
Can UART or FTDI serial work with communication in only one direction? or no? Or is there no universal protocol (as in UART only defines the type of connection, not what data is sent though it) I am building a quadcopter and was thinking of using one of the 2 audio channels to send serial data down one of the spare channels, and the other channel is just connected to a microphone to 'listen' to the noise of the props.
I have 2 major concerns with this method: Will the frequency response and bandwidth of the audio channels be high enough to carry a 115200 bauds signal, or at the very least a 9200 baud signal? and the original question; do I need a 2-way connection for information from the UBLOX GPS or multiwii output? If yes, then i guess the only way to get telemetry is to get one of those 900MHz transmitters, yet another board that I will have to deal with.