diff --git a/core/config/devices/lywsd03/lywsd03atc1441.jpg b/core/config/devices/lywsd03/lywsd03atc1441.jpg
new file mode 100644
index 0000000..8de49ef
Binary files /dev/null and b/core/config/devices/lywsd03/lywsd03atc1441.jpg differ
diff --git a/core/config/devices/lywsd03/lywsd03atc1441.json b/core/config/devices/lywsd03/lywsd03atc1441.json
new file mode 100644
index 0000000..234a8ce
--- /dev/null
+++ b/core/config/devices/lywsd03/lywsd03atc1441.json
@@ -0,0 +1,93 @@
+{
+    "lywsd03atc1441": {
+        "name": "Xiaomi Lywsd03 atc1441",
+        "groupe" : "Température",
+		"configuration" : {
+			"needsrefresh" : 0,
+			"name" : "lywsd03atc1441",
+			"battery_type" : "1x3V CR2032",
+			"xiaomi" : 1,
+			"delay" : 900,
+			"cancontrol" : 0
+		},
+        "commands": [
+			{
+                "name": "Température",
+                "type": "info",
+                "subtype": "numeric",
+                "display": {
+                    "icon": "<i class=\"fas fa-thermometer-empty\"><\/i>",
+					"generic_type": "DONT"
+                },
+                "isVisible": 1,
+                "isHistorized": 0,
+                "unite": "°C",
+                "logicalId": "temperature",
+				"template": {
+					"dashboard": "line",
+					"mobile": "line"
+				}
+            },
+			{
+                "name": "Humidité",
+                "type": "info",
+                "subtype": "numeric",
+                "display": {
+					"icon": "<i class=\"fas fa-tint\"><\/i>",
+					"generic_type": "DONT"
+				},
+                "isVisible": 1,
+                "isHistorized": 0,
+                "unite": "%",
+                "logicalId": "moisture",
+				"template": {
+					"dashboard": "line",
+					"mobile": "line"
+				}
+            },
+			{
+                "name": "Batterie",
+                "type": "info",
+                "subtype": "numeric",
+                "display": {
+					"icon": "<i class=\"fas fa-battery-full\"><\/i>",
+					"generic_type": "DONT"
+				},
+                "isVisible": 0,
+                "isHistorized": 0,
+                "unite": "%",
+                "logicalId": "battery",
+				"template": {
+					"dashboard": "line",
+					"mobile": "line"
+				}
+            },
+            {
+                "name": "Refresh",
+                "type": "action",
+                "subtype": "other",
+                "display": {
+                    "generic_type": "GENERIC"
+                },
+                "isVisible": 1,
+                "isHistorized": 0,
+                "unite": "",
+                "logicalId": "refresh"
+            }
+        ],
+		"compatibility": [
+            {
+                "manufacturer": "Xiaomi",
+                "name": "Température Humidité",
+				"doc": "",
+				"type": "Capteurs",
+				"battery_type": "1x3V CR2032",
+				"ref" : "",
+				"comlink": "",
+				"remark": "Capteurs de Température Humidité avec écran (Lywsd03)",
+				"inclusion" : "Mode inclusion, le module doit avoir été flashé avec le framework atc1441 ATC_MiThermometer pour fonctionner.",
+				"imglink": "xiaomiht"
+            }
+        ]
+    }
+}
diff --git a/resources/blead/devices/lywsd03atc1441.py b/resources/blead/devices/lywsd03atc1441.py
new file mode 100755
index 0000000..9f18eb5
--- /dev/null
+++ b/resources/blead/devices/lywsd03atc1441.py
@@ -0,0 +1,80 @@
+# coding: utf-8
+from bluepy import btle
+import time
+import logging
+import globals
+import struct
+from multiconnect import Connector
+from notification import Notification
+
+class Lywsd03Atc1441():
+	def __init__(self):
+		self.name = 'lywsd03atc1441'
+		self.ignoreRepeat = False
+
+	def isvalid(self,name,manuf='',data='',mac=''):
+		if name.lower() in [self.name]:
+			return True
+		if data.lower().startswith("1a18") and (mac.lower().startswith("a4:c1:38")):
+			#broadcasted advertising data from custom firmware
+			# https://github.com/atc1441/ATC_MiThermometer#advertising-format-of-the-custom-firmware
+			return True
+
+	def parse(self,data,mac,name,manuf):
+		action={}
+		action['present'] = 1
+		# broadcasted advertising data from custom firmware
+		# https://github.com/atc1441/ATC_MiThermometer#advertising-format-of-the-custom-firmware
+		# Also compatible with the recommended custom firmware made by pvvx
+		# At https://github.com/pvvx/ATC_MiThermometer > atc1441 mode
+		logging.debug("Lywsd03Atc1441 PARSE data: %s for %s " % (data, len(data)) )
+		if (data.lower().startswith("1a18") and len(data) == 30):
+			received = data[16:]
+			logging.debug('Lywsd03Atc1441 PARSE received: %s' % received )
+			temp = int.from_bytes(bytearray.fromhex(received[0:4]), byteorder='big', signed=True) / 10.0
+			logging.debug('Lywsd03Atc1441------ Advertising Data=> Temp: ' + str(temp))
+			action['temperature'] = temp
+			hum = int(received[4:6],16)
+			logging.debug('Lywsd03Atc1441------ Advertising Data=> Moist: ' + str(hum))
+			action['moisture'] = hum
+			batt = int(received[6:8],16)
+			logging.debug('Lywsd03Atc1441------ Advertising Data=> Batt: ' + str(batt))
+			action['battery'] = batt
+		return action
+
+	def read(self,mac):
+		result={}
+		try:
+			conn = Connector(mac)
+			conn.connect()
+			if not conn.isconnected:
+				conn.connect()
+				if not conn.isconnected:
+					return
+			batt = bytearray(conn.readCharacteristic('0x3a'))
+			battery = batt[0]
+			conn.writeCharacteristic('0x38','0100',response=True)
+			conn.writeCharacteristic('0x46','f40100',response=True)
+			notification = Notification(conn,Lywsd03)
+			notification.subscribe(10)
+			result['battery'] = battery
+			result['id'] = mac
+			logging.debug('Lywsd03Atc1441------'+str(result))
+			return result
+		except Exception as e:
+			logging.error(str(e))
+		return result
+
+	def handlenotification(self,conn,handle,data,action={}):
+		result={}
+		if hex(handle) == '0x36':
+			received = bytearray(data)
+			temperature = float(received[1] * 256 + received[0]) / 100
+			moisture = received[2]
+			result['moisture'] = moisture
+			result['temperature'] = temperature
+			result['id'] = conn.mac
+			result['source'] = globals.daemonname
+			globals.JEEDOM_COM.add_changes('devices::'+conn.mac,result)
+
+globals.COMPATIBILITY.append(Lywsd03Atc1441)
\ No newline at end of file