AP_Scripting: example to check battery cycle count

libraries/AP_Scripting/examples/smbus-check-cycles.lua

@@ -0,0 +1,21 @@
+-- This script checks SMBus battery cycle count
+
+local warning_cycles = 100
+local battery_instance = 0
+
+function update()
+  if not arming:is_armed() then -- only run check when disarmed
+    local cycle_count = battery:get_cycle_count(battery_instance)
+    if cycle_count then
+      if cycle_count >= warning_cycles then
+        gcs:send_text(0, string.format("Battery needs replacing (%d cycles)", cycle_count))
+      end
+    else
+      gcs:send_text(0, "failed to get battery cycles")
+    end
+  end
+
+  return update, 15000 -- check again in 15 seconds
+end
+
+return update(), 15000 -- first message may be displayed 15 seconds after start-up