Communicating With a Pro-Lite LED Display, Cable Construction and. LED Display, Cable Construction and Protocol. Lite unit and the female DB9 to your serial. The MultiWii Serial Protocol (MSP) is the de-facto standard to interact with a MultiWii flight controller (FC). Its implementation contains a list of the most common.
I had a Pro-Lite display that I had picked up cheap without any communication cable, or any software, lying around in my shop. Iperf For Windows 7 64-bit there. At least I had the remote, but it was slow and I never thought I would actually use it like that.
It was high time that I got around to making a cable and looking into the protocol, so I thought that I would share my findings here. My goal was to be able to update the sign from Processing and thereby be able to use it interactively in some way. It was a two step process, first I needed a cable, secondly I needed the protocol.
Researching on the interwebs, I was able to find (as we all are) all the information I needed and now I will share this information in one location here, at our first and favourite 'how-to' stop. Identify your Telephone Cable First you need to identify whether your phone wire is straight-through or crossover. Mine was straight-through. You do this by holding the cable end to end, tip to tip, and seeing if the colours line up or not. If they line up, you are holding a crossover cable, otherwise it is straight-through. You can make your cable either way, just reverse the connections from mine if you are using a crossover cable. Communication Wire Construction Cut one end off of your telephone extension, expose enough wire to work with, and strip the four ends.
Crimp-connect the pins that came with your DB9 connector onto each of the exposed wires. If you are using a straight-through cable, connect the green wire to pin 3 of the DB9. The red wire will go to pin 2, and the black wire will go to pin 5. Xtracks 3 20 Msts Launcher. If you are using a cross-over cable, then you will be connecting green to pin 2, red to pin 3, and yellow to pin 5.
A little hint for construction if you are unsure is to connect the pins directly to the male port (on your computer or an extension) to test until you are satisfied that you have it right. Connecting the wrong way should not damage anything, but snapping them into the female connector makes it trickier to change around if you have the pin-out wrong. Next thing we need to do is to plug it into the computer. Attach the RJ12 (telephone adapter) to the Pro-Lite unit and the female DB9 to your serial port. Make sure that you set the signs baud-rate to the same as the serial port. The baud-rate I am using is 9600. Set the rest to 8 bits, No Parity, 1 Stop Bit, and No Flow Control You do this on the message board using the remote control.