AP_Scripting: applets: add Hexsoon LEDs script

libraries/AP_Scripting/applets/Hexsoon LEDs.lua

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+-- Hexsoon EDU 450 LED script
+-- LEDs will be fixed colour when disarmed, when armed LEDs will also strobe
+
+--[[ INSTRUCTIONS:
+LEDs have two servo headers, plug into AUX 5 and 6 on cube.
+Note white is ground, black and brown are signal
+black into AUX 5 and brown into AUX 6
+Other aux pins could be used but 5 and 6 make best use of the available groups
+    BRD_PWM_COUNT must be 6
+Aux 5 and 6 are servo outs 13 and 14
+    SERVO13_FUNCITON 132 Profi LED Clock
+    SERVO14_FUNCTION 94 Script 1
+setup scripting:
+    SCR_ENABLE 1
+    SCR_HEAP_SIZE 88032
+Reboot
+Use MP config tab -> MAVFtp to place this script in 'APM/scripts' folder
+Reboot
+Check messages tab should see:
+LEDs strip left: chan=14
+RCOut: PWM:1-12 ProfiLED:13-14
+Note that 1-12 might not be PWM, all than matters is: ProfiLED:13-14
+If not check for scripting error messages.
+LEDs should now work!, if not try swapping AUX 5 and 6, either by physically swapping or by swapping the servo functions and rebooting
+To get colours to match either change the ordering in "local led_map ="  below or swap headers round on the LED distribution board
+If using 6 les add two extra colours to "local led_map =" e.g:  "local led_map = {red, red, red, green, green, green}"
+--]]
+
+-- helper colours, red, green, blue values from 0 to 255
+local red   = {255, 0,   0}
+local green = {0,   255, 0}
+local blue =  {0,   0,   255}
+
+-- led map giving the colour for the LEDs plugged in
+local led_map = {red, red, green, green}
+
+-- number of ms to strobe white, can be 0 for no strobe
+-- strobe only active when armed
+local strobe_on_time = 100
+
+-- number of ms to hold colour set in led_map
+local colour_map_time = 900
+
+local led_chan = assert(SRV_Channels:find_channel(94),"LED: channel not set") + 1
+gcs:send_text(6, "LED strip: chan=" .. tostring(led_chan))
+assert(serialLED:set_num_profiled(led_chan, 8),"Failed LED setup")
+
+local timer = false
+function update_LEDs()
+  local armed = arming:is_armed()
+  if armed and timer and strobe_on_time > 0 then
+    timer = false
+    -- all white
+    serialLED:set_RGB(led_chan, -1, 255, 255, 255)
+    serialLED:send(led_chan)
+    return update_LEDs, strobe_on_time
+  else
+    timer = armed
+    for led_num = 1,#led_map do
+      -- each LED module has two LEDs, set both to colour map colour
+      serialLED:set_RGB(led_chan, ((led_num-1)*2)+0, led_map[led_num][1], led_map[led_num][2], led_map[led_num][3])
+      serialLED:set_RGB(led_chan, ((led_num-1)*2)+1, led_map[led_num][1], led_map[led_num][2], led_map[led_num][3])
+    end
+    serialLED:send(led_chan)
+    return update_LEDs, colour_map_time
+  end
+end
+
+return update_LEDs()

libraries/AP_Scripting/applets/Hexsoon LEDs.md

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+# Hexsoon EDU 450 LED script
+LEDs will be fixed colour when disarmed, when armed LEDs will also strobe
+
+# INSTRUCTIONS
+LEDs have two servo headers, plug into AUX 5 and 6 on cube.
+
+Note white is ground, black and brown are signal
+
+black into AUX 5 and brown into AUX 6
+
+Other aux pins could be used but 5 and 6 make best use of the available groups
+    BRD_PWM_COUNT must be 6
+
+Aux 5 and 6 are servo outs 13 and 14
+```
+SERVO13_FUNCITON 132 (Profi LED Clock)
+SERVO14_FUNCTION 94 (Script 1)
+```
+
+-setup scripting:
+```
+SCR_ENABLE 1
+SCR_HEAP_SIZE 88032
+```
+- Reboot
+
+- Use MP config tab -> MAVFtp to place this script in 'APM/scripts' folder
+
+- Reboot
+
+- Check messages tab should see:
+```
+LEDs strip left: chan=14
+RCOut: PWM:1-12 ProfiLED:13-14
+```
+
+Note that 1-12 might not be PWM, all than matters is: ProfiLED:13-14
+
+If not check for scripting error messages.
+
+LEDs should now work!, if not try swapping AUX 5 and 6, either by physically swapping or by swapping the servo functions and rebooting
+
+To get colours to match either change the ordering in "local led_map ="  below or swap headers round on the LED distribution board
+
+If using 6 les add two extra colours to "local led_map =" e.g:  "local led_map = {red, red, red, green, green, green}"