Discussion group for ArduCopter users
Building Possibly My Last Multicopter
I left the hobby in 2022 after the crash of my Tarot Ironman due to a propeller blade separation resulting in complete destruction of the aircraft. Since then I have been flying an old DJI MAvic Pro that I bought used from a photographer who wanted to upgrade. Anyway, recently l've thought about wanting to build one more multicopter. I enjoyed the challenges of building one plus the satisfaction of flying something I built. So I decided to once again embark on a build project. My needs…
Read more…
Comments
hi, can someone help me with APM 1???
Make a cable as Tony describe, I removed the little pins from the connector and change their place
How do you do!
Yes, that the correct position, mine is working now like that. Another thing that don't sound right is a red wire in SCL and a black one in vcc.
20160530_001508%5B1%5D.jpg
The connection cable provided with the GPS is straight, no cross-over of TX/RX (just the whole connector is up/down), but as the motherboard of the GPS (I opened it) is not labelled we don't know that the RX goes to RX as Cala suggests. The only documentation is on the PixFalcon side, so the GPS obviously has TX and RX pins the other way around as Craig says, else it wouldn't work. Both of you are right, no mistake has been made by the Holybro manufacturer besides not documenting the PixFalcon peripherals (shame because the rest of the docs and web site are nice and clean).
On the GPS side we have then, from left to right:
1 = GND (pin 6 on FC)
2 = TX (RX on FC)
3 = RX (TX on FC)
4 = VCC +5V
5 = SDA
6 = SCL (red, pin 1 on FC)
Sound right?
Yes, but labels were reverse in pixfalcon vs gps, rx with Rx and Tx with Tx, the easier way is if this guys stamped the board as many do, they have lot of space.
TX and RX are always reversed. TX goes to RX and RX goes to TX. That's how serial devices communicate.
Finally I found the gps in Gervais post, reverse Tx and Rx and works :D http://www.rcgroups.com/forums/showthread.php?t=2576614 in Pixfalcon they are reversed :(
No GPS, the green light work, horrible that any stamped references, any documentation, bad product. :(
-
2
-
3
-
4
-
5
-
6
of 87 Next