Matek H743-Slim LED NeoPixel Not working [Solved]

MrNams · December 7, 2021, 4:03am

Hello @rmackay9
I have connected “Panda RC WS2812 LED” to MatekH743-Slim,there are 4 LED strip each having 4LED and all of them connected in series, so you can consider it as Single 16 LED strip.
It was working perfect with iNav but now i switched from iNav to Ardupilot and LED stopped working.

I have installed " LED_roll.lua and other lua script but only 2 leds work.

geofrancis · December 7, 2021, 1:40pm

have you followed the setup for them
https://ardupilot.org/copter/docs/common-serial-led-neopixel.html

MrNams · December 7, 2021, 1:46pm

Yes, i followed https://ardupilot.org/copter/docs/common-serial-led-neopixel.html

geofrancis · December 7, 2021, 2:02pm

the led pin is connected to servo output 13 according to Flight Controller H743-SLIM – Matek Systems

SERVO13_FUNCTION 120

MrNams · December 7, 2021, 2:03pm

Correct, These are settings I made
SERVO13_FUNCTION=120 // NeoPixel1
NTF_LED_TYPES= 256 // NeoPixel
https://ardupilot.org/copter/docs/common-serial-led-neopixel.html?highlight=neopixel

github.com

ArduPilot/ardupilot/blob/master/libraries/AP_Scripting/examples/LED_roll.lua

--[[
Script to control LED strips based on the roll of the aircraft. This is an example to demonstrate
the LED interface for WS2812 LEDs
--]]

--[[
for this demo we will use a single strip with 30 LEDs
--]]
local num_leds = 30

--[[
 use SERVOn_FUNCTION 94 for LED. We can control up to 16 separate strips of LEDs
 by putting them on different channels
--]]
local chan = SRV_Channels:find_channel(94)

if not chan then
    gcs:send_text(6, "LEDs: channel not set")
    return
end

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geofrancis · December 7, 2021, 2:05pm

have you tried just setting it as a notification led without the lua to get it working first ?
https://ardupilot.org/copter/docs/common-ntf-devices.html#common-ntf-devices

MrNams · December 7, 2021, 2:09pm

No, let me try with those options and update here,thanks

MrNams · December 9, 2021, 6:01am

Unfortunately Nothing worked for me

MrNams · December 11, 2021, 3:02pm

Sorry, I found one of my LED was broken thats why other serially connected LEDs did not work, now every LED work but not Flashing, how to make them Flashing when flying.

geofrancis · December 11, 2021, 3:02pm

Thats what the scripts are for.

geofrancis · December 11, 2021, 3:54pm

is it changing colours as a status led? if it is then electrically its working, you now need the lua scripts to get it to flash etc.

MrNams · December 11, 2021, 4:36pm

Yes, color are changing as per status, but i want it should flash when leave ground and fly

geofrancis · December 11, 2021, 5:45pm

you will have to use lua to do that. i dont think there is a led setup program anywhere like they have on betaflight/cleanflight.

MrNams · December 11, 2021, 5:54pm

You are right, i tried lua script but none of script flash LEDs, any option.

MrNams · December 11, 2021, 6:05pm

This was solution for only one LED being worked.