AP_Scripting: example script for testing EKF3/DCM switching

libraries/AP_Scripting/examples/AHRS_switch.lua

@@ -0,0 +1,19 @@
+-- switch between DCM and EKF3 on a switch
+
+local scripting_rc1 = rc:find_channel_for_option(300)
+local EKF_TYPE = Parameter()
+if not EKF_TYPE:init('AHRS_EKF_TYPE') then
+  gcs:send_text(6, 'init AHRS_EKF_TYPE failed')
+end
+
+function update()
+   local sw_pos = scripting_rc1:get_aux_switch_pos()
+   if sw_pos == 0 then
+      EKF_TYPE:set(3)
+   else
+      EKF_TYPE:set(0)
+   end
+   return update, 100
+end
+
+return update()