LibrePilot Forum
General Category => General Discussion => Topic started by: anthropo on September 15, 2016, 10:04:24 am
-
Hello,
If you cut a trace and run a couple of wires the tail light can even be made to flash the revo flight mode, arming status, etc. It's actually a ws2811 led strip.
Can you tell me more about this trace please ?
Thank you
-
The connections are labeled on the led circuit board, vcc, gnd, dat. That dat one is the one you connect to in the wiki LED instructions at https://librepilot.atlassian.net/wiki/display/LPDOC/Setup+WS281x+Led
As shipped from the factory the led dat is connected to the pdb stm8 processor so the lights can be controlled using a spare accessory channel. If you cut the trace to dat and jumper it to one of the outputs shown in the wiki above it'll blink the status instead of being a solid color.
Remember, this only works if you've upgraded the racer 250 to a revo. The firmware for the stock CC3d board doesn't support leds.
-
The connections are labeled on the led circuit board, vcc, gnd, dat. That dat one is the one you connect to in the wiki LED instructions at https://librepilot.atlassian.net/wiki/display/LPDOC/Setup+WS281x+Led
As shipped from the factory the led dat is connected to the pdb stm8 processor so the lights can be controlled using a spare accessory channel. If you cut the trace to dat and jumper it to one of the outputs shown in the wiki above it'll blink the status instead of being a solid color.
Remember, this only works if you've upgraded the racer 250 to a revo. The firmware for the stock CC3d board doesn't support leds.
hwh,
Can you post the link to the vendor for that LED Strip
-
It's probably made by eachine, they're available on BG as spare parts. http://www.banggood.com/Eachine-Racer-250-Drone-Spare-Part-Tail-LED-Light-Bar-Red-Light-p-1017958.html
-
Thank you
-
Sorry but i certainly misunderstood.
I have unsoldered DAT from the main board to the tail led strip. Connected it to the flexi-io pin 3, activated led_strip in settings. But i have nearly the same behavior : When i put power on the racer, led strip just takes a new color, and keeps it till i re-power. More, only half lights.
What did i miss ?
-
I'd try using one of the extra servo out ports like 5 or 6. If it's a full size revo the connector pins should be easier to connect to than the flexi-io port. And if it's a "cc3d-mini-revo" the flexi-io port doesn't have pins 3 and 4 on it so the servo outs are the only choice.
I put the stock cc3d that doesn't support LEDs back on my Racer 250 so I can't run any tests.
edit: another thought, did you put tape or something under the unsoldered tab to make sure it's not touching the main board?