Add initial support for Senssun scale

README.md

@@ -54,6 +54,7 @@ This custom component for [Home Assistant](https://www.home-assistant.io) passiv
 - Ruuvitag
 - Sensirion
 - SensorPush
+- Senssun (Scale)
 - SmartDry
 - Switchbot
 - Teltonika

custom_components/ble_monitor/ble_parser/__init__.py

@@ -38,6 +38,7 @@
 from .ruuvitag import parse_ruuvitag
 from .sensirion import parse_sensirion
 from .sensorpush import parse_sensorpush
+from .senssun import parse_senssun
 from .smartdry import parse_smartdry
 from .switchbot import parse_switchbot
 from .teltonika import parse_teltonika
@@ -422,6 +423,10 @@ def parse_advertisement(
                         # Laica
                         sensor_data = parse_laica(self, man_spec_data, mac)
                         break
+                    elif comp_id == 0x0100 and data_len == 0x14:
+                        # Senssun IF_B7
+                        sensor_data = parse_senssun(self, man_spec_data, mac)
+                        break
 
                     # Filter on part of the UUID16
                     elif man_spec_data[2] == 0xC0 and data_len == 0x10:

custom_components/ble_monitor/ble_parser/senssun.py

@@ -0,0 +1,50 @@
+"""Parser for Senssun Scale BLE advertisements"""
+
+import logging
+from struct import unpack
+
+from .helpers import to_mac, to_unformatted_mac
+
+_LOGGER = logging.getLogger(__name__)
+
+
+def read_stable(ctr1):
+    """Parse Stable"""
+    return int((ctr1 & 0xA0) == 0xA0)
+
+def parse_senssun(self, data: bytes, mac: str):
+    """Parser for Senssun Scales."""
+    xvalue = data[13:19]
+
+    (division, weight, impedance, ctr1) = unpack(">bhhb", xvalue)
+    result = {
+        "type": "Senssun Smart Scale",
+        "firmware": "Senssun",
+        "mac": to_unformatted_mac(mac),
+        "data": True,
+        "impedance": impedance,
+        "weight": weight / 100.0,
+        "stabilized": read_stable(ctr1),
+    }
+
+    # Check for duplicate messages
+    packet_id = xvalue.hex()
+    try:
+        prev_packet = self.lpacket_ids[mac]
+    except KeyError:
+        # start with empty first packet
+        prev_packet = None
+    if prev_packet == packet_id:
+        # only process new messages
+        if self.filter_duplicates is True:
+            return None
+    self.lpacket_ids[mac] = packet_id
+    if prev_packet is None:
+        if self.filter_duplicates is True:
+            # ignore first message after a restart
+            return None
+
+    result.update({
+            "packet": packet_id,
+    })
+    return result

custom_components/ble_monitor/const.py

@@ -1975,6 +1975,7 @@ class BLEMonitorBinarySensorEntityDescription(
     'K6 Sensor Beacon'        : [["temperature", "humidity", "acceleration", "voltage", "battery", "rssi"], [], []],
     'DSL-C08'                 : [["battery", "rssi", "voltage"], [], ["lock", "childlock"]],
     'SmartDry cloth dryer'    : [["temperature", "humidity", "voltage", "battery", "shake", "rssi"], [], ["switch"]],
+    'Senssun Smart Scale'     : [["rssi"], ["weight", "impedance"], []],
 }
 
 # Sensor manufacturer dictionary
@@ -2111,6 +2112,7 @@ class BLEMonitorBinarySensorEntityDescription(
     'Laica Smart Scale'       : 'Laica',
     'K6 Sensor Beacon'        : 'KKM',
     'SmartDry cloth dryer'    : 'SmartDry',
+    'Senssun Smart Scale'       : 'Senssun',
 }
 
 

custom_components/ble_monitor/test/test_senssun_parser.py

@@ -0,0 +1,28 @@
+"""The tests for the Senssun ble_parser."""
+
+import datetime
+
+from ble_monitor.ble_parser import BleParser
+
+
+class TestSenssun:
+    """Tests for the Senssun parser"""
+
+    def test_Senssun_IF_B7(self):
+        """Test Senssun parser for IF_B7."""
+        data_string = "043E2B0201030033B3C1937A181F020106060949465F423714FF0001020311187A93C1B333021A4500B4A1AB61C5"
+        data = bytes(bytearray.fromhex(data_string))
+
+        # pylint: disable=unused-variable
+        ble_parser = BleParser()
+        sensor_msg, tracker_msg = ble_parser.parse_raw_data(data)
+
+        assert sensor_msg["firmware"] == "Senssun"
+        assert sensor_msg["type"] == "Senssun Smart Scale"
+        assert sensor_msg["mac"] == "187A93C1B333"
+        assert sensor_msg["packet"] == "021a4500b4a1"
+        assert sensor_msg["data"]
+        assert sensor_msg["weight"] == 67.25
+        assert sensor_msg["stabilized"] == 1
+        assert sensor_msg["impedance"] == 180
+        assert sensor_msg["rssi"] == -59

docs/_devices/Senssun_Smart_Scale.md

@@ -0,0 +1,17 @@
+---
+manufacturer: Senssun
+name: Senssun Smart Scale
+model: IF_B7
+image: IF_B7.jpg
+physical_description:
+broadcasted_properties:
+  - weight
+  - impedance
+  - rssi
+broadcasted_property_notes:
+broadcast_rate:
+active_scan:
+encryption_key:
+custom_firmware:
+notes:
+---

docs/config_params.md

@@ -123,7 +123,7 @@ Data from sensors with other addresses will be ignored. Default value: True
 
    **Report unknown sensors**
 
-   (`Off`, `Acconeer`, `Air Mentor`, `Amazfit`, `ATC`, `BlueMaestro`, `Blustream`, `Brifit`, `BTHome`, `Chef iQ`, `Govee`, `Grundfos`, `HolyIOT`, `Hormann`, `HHCC`, `iNode`, `iBeacon`, `Jinou`, `Kegtron`, `Mi Scale`, `Mi Band`,`Mikrotik`, `Oras`, `Qingping`, `Relsib`, `rbaron`, `Ruuvitag`, `Sensirion`, `SensorPush`, `SmartDry`, `Switchbot`, `Teltonika`, `Thermoplus`, `Xiaogui`, `Xiaomi`, `Other` or `False`)(Optional) This option is needed primarily for those who want to request an implementation of device support that is not in the list of [supported sensors](devices). If you set this parameter to one of the sensor brands, then the component will log all messages from unknown devices of the specified brand to the Home Assistant log (`logger` component must be enabled at info level, see for instructions the [FAQ](faq#my-sensor-from-the-xiaomi-ecosystem-is-not-in-the-list-of-supported-ones-how-to-request-implementation)). Using a sensor brand might not catch all BLE advertisements.
+   (`Off`, `Acconeer`, `Air Mentor`, `Amazfit`, `ATC`, `BlueMaestro`, `Blustream`, `Brifit`, `BTHome`, `Chef iQ`, `Govee`, `Grundfos`, `HolyIOT`, `Hormann`, `HHCC`, `iNode`, `iBeacon`, `Jinou`, `Kegtron`, `Mi Scale`, `Mi Band`,`Mikrotik`, `Oras`, `Qingping`, `Relsib`, `rbaron`, `Ruuvitag`, `Sensirion`, `SensorPush`, `Senssun`, `SmartDry`, `Switchbot`, `Teltonika`, `Thermoplus`, `Xiaogui`, `Xiaomi`, `Other` or `False`)(Optional) This option is needed primarily for those who want to request an implementation of device support that is not in the list of [supported sensors](devices). If you set this parameter to one of the sensor brands, then the component will log all messages from unknown devices of the specified brand to the Home Assistant log (`logger` component must be enabled at info level, see for instructions the [FAQ](faq#my-sensor-from-the-xiaomi-ecosystem-is-not-in-the-list-of-supported-ones-how-to-request-implementation)). Using a sensor brand might not catch all BLE advertisements.
 
    If you can't find the advertisements in this way, you can set this option to `Other`, which will result is all BLE advertisements being logged. You can also enable this option at device level. **Attention!** Enabling this option can lead to huge output to the Home Assistant log, especially when set to `Other`, do not enable it if you do not need it! If you know the MAC address of the sensor, its advised to set this option at device level. Details in the [FAQ](faq#my-sensor-from-the-xiaomi-ecosystem-is-not-in-the-list-of-supported-ones-how-to-request-implementation). Default value: `Off`
 

info.md

@@ -55,6 +55,7 @@ This custom component for [Home Assistant](https://www.home-assistant.io) passiv
 - Ruuvitag
 - Sensirion
 - SensorPush
+- Senssun
 - SmartDry
 - Switchbot
 - Teltonika