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ArduCopter User Group

Discussion group for ArduCopter users

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Latest Activity: May 14

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MAVLink Tutorial for Absolute Dummies (Part –I)

Started by Shyam Balasubramanian. Last reply by Asim May 14. 106 Replies

Hi All,I was recently fiddling around the code for a while and decided to create a tutorial out of it so that others may find it useful. If I would have known this knowledge long back, I am sure I…Continue

Tags: Ardupilot, Mega, the, program, to

Motors not spinning fast enough to take off

Started by Charles Harrington. Last reply by Charles Harrington May 13. 6 Replies

I am new to DIY Drones and to this group. So, if this question would be better off posting somewhere else please let me know.  I recently built a 450 frame quad using a Clone Ardupilot 2.8 flight…Continue

heli that is capable of flying 40 min plus : with camera

Started by andrew cutter. Last reply by Robert Raeder May 11. 3 Replies

Looking for spec and what hardware is needed for a helicopter to fly for 40 min or more using a mission planner (agriculture) . Weight ? motor ?  electric vs gas (vibration). Component brands (blades…Continue

I want to know how the "Follow Me" function..

Started by limhwanhee. Last reply by John R May 4. 1 Reply

Where should I look in the "ArduCopter" source code?And I wonder how it works in detail.Continue

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Comment by Doug Adduci on June 7, 2016 at 1:47pm

I think there is a paperclip reset hole on the side of the pixhawk.  That should do it.

Comment by david turner on June 7, 2016 at 12:16pm

Good evening 

Is there a simple way to reset my pixhalk ? 

I purchased one to put in my 650 tarot and used mission planner to set it up, as I am use to this.

Then I read Qground control was better , don't believe everything you read.

So tryed it and don't like it and thought I could just reinstalled program from mission planner.No you can't won't install firmware ,so I want to start all over again from fresh. Is there a way to do this ? Looked and asked intranet without any joy.

Anybody?

Regards Dave

Comment by arttu mahlakaarto on June 7, 2016 at 11:08am

hi, can someone help me with APM 1???

Comment by Cala on June 5, 2016 at 9:50am

Make a cable as Tony describe, I removed the little pins from the connector and change their place

Comment by dongfeng on June 5, 2016 at 9:03am

How do you do!

Comment by Cala on May 29, 2016 at 3:41pm

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.

Comment by Tony Wall on May 29, 2016 at 3:16pm
Comment by Tony Wall on May 29, 2016 at 3:11pm

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?

Comment by Cala on May 29, 2016 at 2:22pm

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. 

Comment by Craig on May 29, 2016 at 1:55pm

TX and RX are always reversed. TX goes to RX and RX goes to TX. That's how serial devices communicate.

 
 
 

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