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ArduCopter User Group

Discussion group for ArduCopter users

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Latest Activity: Jul 13

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SBus on APM

Started by Damo. Last reply by William Jul 13. 5 Replies

Hi,Does anyone know if this works or if there is newer firmware. From reading the comments there are issues ?…Continue

Capstone Search and Rescue Project. Help Needed to Finish!

Started by Talha A.. Last reply by Greg Bjorg Jul 7. 48 Replies

I had initially raised this question in Arducopter 2.x group yesterday but since no one replied and I really need help, I am posting this question in the Arducopter User Group.Here is the situation:I…Continue

Tags: EKF, APM, Compass, GPS

Runcam 2 Remote Trigger Hack

Started by Doug Adduci. Last reply by Lubin Kerhuel May 25. 7 Replies

Hi all.  I purchased a new Runcam 2 for my Flamewheel 450 quad only to discover that there is no way to run a remote shutter trigger.  Nothing came up on forum searches so I came up with one myself. …Continue

Maximum number of Lidar for Object Avoidance

Started by xemone. Last reply by Mateusz Sadowski May 15. 1 Reply

Hi all,I'm setting up my PX4-based quad with ST VL53L0X Lidar sensors (I currently have three) and I noticed that line #24 of the current Rangefinder library (here:…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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