Useful LED upgrade

Joined
Apr 6, 2015
Messages
418
Reaction score
73
Age
51
WOW! I am feeling so much better about my work benches now.
Nice guitars by the way. I'm an old drummer.
Thanks, I have a little business of building custom guitars made out of antique oil cans.
 
Joined
Nov 1, 2014
Messages
405
Reaction score
45
Location
Houston, Texas
YES...well.. kind of. That is why on same tools I have like 5 of the same. I always know where one of them is :)
LOL, me to... nice cans btw.
 
  • Like
Reactions: macsoft
Joined
Mar 4, 2013
Messages
80
Reaction score
0
Location
Rome, Georgia y'all
I don't know if this will be helpful, but I attached a large mirror to the top of my flight-box. I launch from the top of the box and can see all of the LEDs quite easily reflected in the mirror.
 
Joined
Aug 17, 2014
Messages
297
Reaction score
26
Location
Massachusetts
I've done this in accordance with your diagram and instructions. Something isn't right.
I located mine in the lower half of the shell, so no wiring or plug would be necessary to the top.
LED_s.jpg


I get Red and Green, but no yellow. In addition, the outermost LED on the right in this video is the one I attached to.If you look closely, when the new topside LED flashess Red, that particular LED flashes red as well, but the other two on that side flash yellow.

How sure are you of the LED Pin Diagram (Anode, Red,Green)?

 

N017RW

Premium Pilot
Joined
May 2, 2014
Messages
8,960
Reaction score
3,249
Location
Palm Beach Co.- FL
The ESC on-board diodes are definately common anode.

I also notice that the "the outermost LED on the right " does not illuminate Green either. It seems to be Red or nothing.

Each color string or group of three LEDs is driven by a PNP transistor which is driven by the ESC controller.

The overall problem here is that the on-board LED module segments are configured in series with a single limiting resistor and now this mod would have you [simply] 'piggybacking' addtional LED segments in parallel with each one of them. This of course is not proper design.

As you suspected earlier you're shunting current from one segment or color string and leaking current to the other.

This is a cool idea but this is not the proper way to achieve it.
 
Joined
Apr 6, 2015
Messages
418
Reaction score
73
Age
51
I've done this in accordance with your diagram and instructions. Something isn't right.
I located mine in the lower half of the shell, so no wiring or plug would be necessary to the top.
View attachment 20511

I get Red and Green, but no yellow. In addition, the outermost LED on the right in this video is the one I attached to.If you look closely, when the new topside LED flashess Red, that particular LED flashes red as well, but the other two on that side flash yellow.

How sure are you of the LED Pin Diagram (Anode, Red,Green)?

Hello Bob,
YELLOW is RED+GREEN.
 
Joined
Aug 17, 2014
Messages
297
Reaction score
26
Location
Massachusetts
Not having the schematic, I suspected this might be the case.
I liked the concept so much that I tried it nonetheless.

I now have a hole in my bird, so I'm not giving up that easily.

What makes you think they are in a common anode configuration?
The package pins are individual; it can be used either way, depending on your circuit

Do you happen to have the schematic?
But then we have the limitations of the ml board and what's possible with that...


The ESC on-board diodes are definately common anode.

I also notice that the "the outermost LED on the right " does not illuminate Green either. It seems to be Red or nothing.

Each color string or group of three LEDs is driven by a PNP transistor which is driven by the ESC controller.

The overall problem here is that the on-board LED module segments are configured in series with a single limiting resistor and now this mod would have you [simply] 'piggybacking' addtional LED segments in parallel with each one of them. This of course is not proper design.

As you suspected earlier you're shunting current from one segment or color string and leaking current to the other.

This is a cool idea but this is not the proper way to achieve it.
 

N017RW

Premium Pilot
Joined
May 2, 2014
Messages
8,960
Reaction score
3,249
Location
Palm Beach Co.- FL
Joined
Apr 6, 2015
Messages
418
Reaction score
73
Age
51
Well, now there's a handy bit of info.
Why would i want to make green?
I already have that - the diodes produce red and green.
Therefore, I need to produce yellow from the red and green.
if you have an RGB LED, same as on your drone: the YELLOW color is produced by turning both RED and GREEN LEDs at the same time. You don't need to produce nothing.
Connect the RED and GREEN LED legs to the indicated spots and you will have the yellow color when they both come ON at the same time.
 
Joined
Aug 17, 2014
Messages
297
Reaction score
26
Location
Massachusetts
I know that. I simply misread your post at the outset as you can tell from my reply.
My dyslexia has progressed to entire words, I guess. ;-)


if you have an RGB LED, same as on your drone: the YELLOW color is produced by turning both RED and GREEN LEDs at the same time. You don't need to produce nothing.
Connect the RED and GREEN LED legs to the indicated spots and you will have the yellow color when they both come ON at the same time.
 
  • Like
Reactions: macsoft
Joined
Apr 5, 2015
Messages
221
Reaction score
23
Age
63
I have red/green leds with a common anode on order.
I thought this was a great idea at first but now I'm not so sure.
Maybe I should buy a mirror instead.
or just keep doing the DJI belly crawl haha
the DJI belly crawl. The DJI compass dance. The DJI hand catch stance.
What other moves will my quad be teaching me? haha
 
Joined
Apr 30, 2015
Messages
157
Reaction score
52
Age
43
Location
Cardiff, Wales. UK
I use the palm of my hand under the existing LEDs to see what's going on during calibration.

The one feature I'm surprised to find omitted is a super-bright orientation LED on the front facing panel of the Phantom - maybe slowly strobing, which can only be seen if the craft is facing you. Judging orientation would be much easier than it is at the moment.
 
Joined
Aug 17, 2014
Messages
297
Reaction score
26
Location
Massachusetts
I installed one of these $6 Superwhite LED arrays last summer. It really is extremely bright, and you can see it in everything but the most blinding sun. Do not use the connector that slides over the battery terminals. They never make good contact. Strip the wire ends and solder them to the power on the Main Board. There has been no noticable decrease in flight time.
installed.jpg

Headlight.jpg

http://www.ebay.com/itm/DJI-Phantom...132?pt=LH_DefaultDomain_0&hash=item43c7367a8c

------


I use the palm of my hand under the existing LEDs to see what's going on during calibration.

The one feature I'm surprised to find omitted is a super-bright orientation LED on the front facing panel of the Phantom - maybe slowly strobing, which can only be seen if the craft is facing you. Judging orientation would be much easier than it is at the moment.
 
  • Like
Reactions: cjmwales
Joined
Aug 17, 2014
Messages
297
Reaction score
26
Location
Massachusetts
I have red/green leds with a common anode on order.
I thought this was a great idea at first but now I'm not so sure.
Maybe I should buy a mirror instead.
or just keep doing the DJI belly crawl haha
the DJI belly crawl. The DJI compass dance. The DJI hand catch stance.
What other moves will my quad be teaching me? haha

The "DJI Duck and Cover". I was standing too near my car in an open field when bringing her home. I tried to get a bit too cute and land it right in front of me. Apparently, the metal sent it haywire, and it flew right at my head. dropped the TX and fended it off, but not before it made mincemeat out of my right hand. Fortunately, we both survived.
 

New Threads

Members online

Forum statistics

Threads
140,734
Messages
1,450,314
Members
102,557
Latest member
Quigley01