I purchased the GPS to FTDI cable but I need to know the orientation of the cable on the FTDI end. The adapter cable has a GPS plug on one end and open pins on the other with 3 black and 1 red cable. What colors/pins go to the FTDI cable?
Any help or diagrams would be appreciated.
I edit this post to confirm that the shown diagram here is correct. DO NOT reverse TX/RX from this schema. The message is indeed confusing.
So : use this chema AS IS. It works.
Exactly, Different from even what is pictured on the DIY Store site. I've already read the wiki page and it explains the FTDI to strait pins but without knowing the pinout on the GPS connector end, I'm a little leary about just plugging in black to red. I ordered the cable to get my GPS going not smoke it.
I would still like to confim with someone if possible?..... Anyone?
FYI on the latest batch of FTDI to GPS cables from DIY Drones Store:
You are absolutely correct! Our cables are wrong =X! We just looked at our stock and they are all like this. Thank you for e-mailing us about this. We have had them in stock this way since the new year.
The cable will not fry your board because the Voltage and Ground are in the correct position. However the RX and TX are flipped in your version so you would not be able to read/upload any data.
We are trying to figure out how we are going to handle this as a bunch of these cables went out. It's funny that on one else has e-mailed me about their cable. I'll keep you posted as to what we will do.
Sorry for any inconvenience this may have caused you and thank you once again!
The pins readily (maybe too readily) slide out of the header. You can grab the affected Tx & Rx pins on the FTDI end with needle nose pliers, push it back out of the header, then grab it on the other side to pull it the rest of the way out. Swap the Tx & Rx lines. Push the pin back into the header.
(Don't grab the wire with pliers and pull on that, else you'll find yourself re-soldering the wires to the pin.)
I just ended up soldering pins on my MTK GPS and used the FTDI cable as shown on the Wiki page bypassing the bad FTDI to GPS cable. I got my GPS updated after some trial and error and everything seems to be operating as it should.
The GPS comes with a stubby cable that's not good for anything, so I built my own FTDI adapter out of it, using pinouts found on DIYDrones/Sparkfun. Cut the GPS cable in half and you can build two. :)
This is about all your going to find: