Nvk/crowcon xgard bright arrakis 2.5.0 gw (#306)

* making last fixes for Crowcon H2 sensor.

.marketplace/devices/devices.yml

@@ -307,7 +307,7 @@
     - blueprint: gas_sensors/crowcon_xgard_bright_arrakis_mk4
       display_name: Arrakis MK4 IPC Version
       description: Use Enapter Gateway on Arrakis MK4 IPC to integrate Crowcon Xgard Bright.
-      verification_level: ready_for_testing
+      verification_level: verified
 
 - id: crowcon-xgardiq
   display_name: Crowcon XgardIQ

gas_sensors/crowcon_xgard_bright_arrakis_mk4/firmware.lua

@@ -8,6 +8,7 @@ ADDRESS_CONFIG = 'address'
 BAUD_RATE_CONFIG = 'baud_rate'
 
 local CONNECTION = {}
+local SERIAL_OPTIONS = {}
 local TTY
 
 function main()
@@ -41,16 +42,19 @@ function tty_init()
       return nil, 'not_configured'
     else
       CONNECTION = {
-        baudrate = tonumber(baud_rate),
+        read_timeout = 1000,
+        address = tonumber(address),
+      }
+
+      SERIAL_OPTIONS = {
+        baud_rate = tonumber(baud_rate),
         parity = 'N',
-        stop_bits = '2',
+        stop_bits = 2,
         data_bits = 8,
         read_timeout = 1000,
-        address = tonumber(address),
-        port = port,
       }
 
-      TTY = modbusrtu.new(port, CONNECTION)
+      TTY = modbusrtu.new(port, SERIAL_OPTIONS)
 
       if TTY then
         return TTY, nil
@@ -69,7 +73,7 @@ function send_telemetry()
   local connection, err = tty_init()
 
   if connection then
-    local data, result = connection:read_inputs(CONNECTION.address, 1000, 2, CONNECTION.read_timeout)
+    local data, result = connection:read_holdings(CONNECTION.address, 1000, 2, CONNECTION.read_timeout)
 
     if data then
       telemetry['h2_concentration'] = tofloat(data)