Add thermostat Stelpro SMT402AD and new code for ST218 (#3341)

lib/extension/homeassistant.js

@@ -964,7 +964,11 @@ const mapping = {
     ],
     '316GLEDRF': [cfg.light_brightness],
     'LVS-ZB500D': [cfg.light_brightness],
-    'ST218': [],
+    'ST218': [
+        cfg.thermostat(5, 30, 'occupied_heating_setpoint', 0.5),
+        cfg.sensor_local_temperature,
+        cfg.lock_keypad_lockout,
+    ],
     'E1525/E1745': [cfg.binary_sensor_occupancy, cfg.sensor_battery],
     'ZYCT-202': [cfg.sensor_action],
     'GR-ZB01-W': [cfg.cover_position],
@@ -1363,6 +1367,11 @@ const mapping = {
         cfg.sensor_local_temperature,
         cfg.lock_keypad_lockout,
     ],
+    'SMT402AD': [
+        cfg.thermostat(5, 30, 'occupied_heating_setpoint', 0.5),
+        cfg.sensor_local_temperature,
+        cfg.lock_keypad_lockout,
+    ],
     '046677551780': [cfg.light_brightness],
     '798.15': [cfg.light_brightness],
     '12126': [cfg.switch],