Omron BLE Home Assistant Integration (hass-omron)

A custom integration for Home Assistant to connect and poll data directly from Omron Bluetooth Low Energy (BLE) blood pressure monitors.

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🐞 Found a bug? Let us know via an Issue.
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Supported Models

Model	Global Model	Type	Verified
HEM-6232T	BP6350/RS7 Intelli IT	Wrist	✅
HEM-7142T2	BP7150/M2 Intelli IT	Upper Arm	✅
HEM-7151T	BP5250/M3 Comfort	Upper Arm	✅
HEM-7320T	BP7450/M7 Intelli IT	Upper Arm	✅
HEM-7322T	BP786/M6 Intelli IT	Upper Arm	✅
HEM-7343T	BP5450/Platinum Series	Upper Arm	✅

Note

Other Omron BLE devices might work by selecting a similar model during > setup, but have not been formally tested. If your device does not work, please share the debug logs

⚠️ Warning: Conflict with Official App

Omron blood pressure monitors only support one paired device at a time. If you have already paired your monitor with the official Omron Connect smartphone app, you must unpair/forget the device from your phone's Bluetooth settings before connecting it to Home Assistant. Using both simultaneously is not supported by the hardware.

Installation

1. HACS: Add this repository (eigger/hass-omron) to HACS as a custom repository, or Manual: Copy the custom_components/omron directory into your Home Assistant custom_components folder.
2. Restart Home Assistant.

⚠️ Important Notice

• It is strongly recommended to use a Bluetooth proxy instead of a built-in Bluetooth adapter.
  Bluetooth proxies generally offer more stable connections and better range, especially in environments with multiple BLE devices.

Tip

For hardware recommendations, refer to Great ESP32 Board for an ESPHome Bluetooth Proxy.

• When using a Bluetooth proxy, it is strongly recommended to keep the scan interval at its default value.
  Changing these values may cause issues with Bluetooth data transmission.

• bluetooth_proxy: must always have active: true.

  Example (recommended configuration with default values):

  esp32_ble_tracker:
    scan_parameters:
      active: true
  
  bluetooth_proxy:
    active: true

Pairing & Configuration

Device setup and pairing are done entirely through the Home Assistant UI.

1. Enter Pairing Mode:
   • On your Omron blood pressure monitor, press and hold the Bluetooth button (or the respective connection button depending on your model) for 3-5 seconds.
   • The display should show a blinking -P- symbol. This means the device is ready to pair.
2. Add Integration:
   • In Home Assistant, go to Settings > Devices & Services.
   • Home Assistant should automatically discover the "Omron" device via Bluetooth. Click Configure.
   • If it wasn't auto-discovered, click Add Integration and search for "Omron".
3. Select Your Model:
   • Select your exact Omron model from the dropdown list.
4. Finalize Pairing:
   • Make sure -P- is still blinking on the monitor.
   • Click Submit in Home Assistant.
   • HA will securely perform the pairing sequence (programming its pairing key or performing OS-level bonding).
   • The monitor screen will display an [OK] symbol when successful.

How It Works

• The integration actively polls the blood pressure monitor in the background.
• Whenever you take a measurement, the device stores it in its internal EEPROM memory.
• As long as the device is in range, Home Assistant will periodically connect via Bluetooth (every 5 minutes by default) and download the latest unread records.
• HA creates automatically updated sensor entities for:
  • Systolic Blood Pressure (mmHg)
  • Diastolic Blood Pressure (mmHg)
  • Heart Rate / Pulse (bpm)
  • Pulse Pressure (mmHg)
  • Estimated Mean Arterial Pressure (mmHg)
  • Shock Index (ratio)
  • Rate Pressure Product (mmHg*bpm)
  • Blood Pressure Category (ACC/AHA)
  • Measurement Timestamp
  • RSSI / Signal Strength (diagnostic)
  • Last Poll Duration (diagnostic)
• Binary & Diagnostic Sensors (Status from the last measurement):
  • Cuff Fit: On indicates the cuff was not wrapped correctly (improper fit).
  • Body Movement: On indicates that movement was detected during the measurement.
  • Irregular Pulse: On indicates that an irregular heart rhythm was detected.
  • Improper Position: On indicates the device was not at heart level (wrist models).
  • Battery: On when the device's batteries should be replaced.
  • Connection: On while Home Assistant is actively communicating with the monitor.

Blood Pressure Categories (ACC/AHA)

The Blood Pressure Category sensor classifies readings according to the ACC/AHA 2017 Guidelines. If a measurement's systolic and diastolic values fall into different categories, the higher (more severe) category is assigned.

Category	Systolic (mmHg)		Diastolic (mmHg)
Normal	< 120	and	< 80
Elevated	120 – 129	and	< 80
Hypertension Stage 1	130 – 139	or	80 – 89
Hypertension Stage 2	≥ 140	or	≥ 90
Hypertensive Crisis	> 180	or	> 120

Device note (text entity)

• Each integration entry exposes a Text entity (Device nickname) under Configuration for a free-form note. It does not change the Device Registry name, entity IDs, or integration options; Home Assistant restores the last value like other restore-state entities.

User names (multi-user models) & last values

• Some Omron models store two (or more) user profiles on the cuff. After you choose such a model, the setup flow asks for a display name per profile (defaults: user1, user2, …). Those names are used in sensor labels and in the internal sensor key (slug), so they replace the old _user1 / _user2-style suffix in entity_ids when you customize them.
• Single-user models do not show this step.
• Changing a name later under Configure re-creates sensors for that profile slot (new entity_id, new long-term statistics for those entities).
• Last value after restart: non-diagnostic measurement sensors restore their last recorded state from Home Assistant so they can show the previous reading when the cuff is off or not yet polled. The Connection binary sensor still reflects whether a poll connection is active. Stale readings are possible if the device has not synced—use the connection sensor and timestamps as context.

Troubleshooting

• Pairing failed: Could not enter key programming mode: Make sure the device is actively showing the blinking -P- before clicking Submit. If it timed out and turned off, hold the button on the device to trigger -P- again.
• Connection terminated by peer: BLE interference or weak signal. Try moving the device closer to your Home Assistant Bluetooth adapter or use a USB extension cable for your BLE dongle.
• Sensor values not updating: The device turns off its Bluetooth radio to save battery. It turns on briefly after a measurement. Ensure you have taken a new measurement after pairing to test the sync.
• Data doesn't show up after changing batteries: Changing batteries may reset the internal clock on the device. Re-pairing or syncing time (via the app, then re-pairing to HA) might be necessary on older models.

References

• omblepy (userx14)