A&D Weight Scale

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A&D Weight Scale is a body weight scale from A&D Medical.

Use the TAnDWeightScale component to communicate with the A&D Weight Scale.

Demo Location

You can find the sample projects for the A&D Weight Scale in the following IoT demo directories after installing the component:

  • Start | Programs | Embarcadero RAD Studio Berlin | Samples and then navigate to:
    • Delphi: Internet of Things\Object Pascal\Thing Connect\ANDConnect
    • C++: Internet of Things\CPP\Thing Connect\ANDConnect

Supported Services

The A&D Weight Scale component supports the following Bluetooth LE services and characteristics:

Service Characteristic Property Event Read Subscribe Write

Battery Service

Battery Level

BatteryLevel OnBatteryLevelUpdate
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Device Information Firmware Revision String FirmwareRevision OnFirmwareRevisionUpdate
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Hardware Revision String HardwareRevision OnHardwareRevisionUpdate
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IEEE 11073-20601 Regulatory Certification Data List IEEERegulatory OnIEEERegulatoryUpdate
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Manufacturer Name String ManufacturerName OnManufacturerNameUpdate
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Model Number String ModelNumber OnModelNumberUpdate
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Serial Number String SerialNumber OnSerialNumberUpdate
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Software Revision String SoftwareRevision OnSoftwareRevisionUpdate
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System ID SystemID OnSystemIDUpdate
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A&D Weight Scale component supports the following custom services:

Service Property Event Read Subscribe Write Description
Custom Service 1 OnAnDConnectWeightMeasurementUpdate
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Returns the TWeightScaleMeasurement data for the weight measurement.
AnDConnectWeightScaleFeature OnAnDConnectWeightScaleFeatureUpdate
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Returns the TWeightScaleFeature data for the feature characteristics.
DateTime OnDateTimeUpdate
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Date Time characteristic.
Custom Service 2 AnDCustomCommandStatus OnAnDCustomCommandStatusUpdate
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Returns the TAnDScaleCommandService data for the custom command and response characteristics.

Custom Data Types

The A&D Weight Scale defines its custom data types in the following unit:

  • Iot.Device.AnDWeightScaleTypes

Custom Weight Scale Measurement Data

The TWeightScaleMeasurement record type contains the custom data as a weight scale measurement characteristic.

  • Value: Raw array of bytes received from the device.
  • MeasurementUnitFlag: Specifies the unit system of the measurement.
    • 0: Kilograms. International system.
    • 1: Pounds. Imperial system.
  • WeightMeasurement: Returns the value of the weight measurement.
  • TimeStampPresentFlag: Indicates whether the TimeStamp value is present or not.
    • 0: Not present
    • 1: Present
  • TimeStamp: Returns the time value with type TDateTime.

Custom Weight Scale Feature Data

The TWeightScaleFeature record type contains the custom features that are supported by the weight scale.

  • Value: Raw array of bytes received from the device.
  • TimeStampSupported: Indicates whether TimeStamp is supported.
    • 0: Not supported.
    • 1: Supported.
  • MultipleUsersSupported: Indicates whether multiple users are supported.
    • 0: Not supported.
    • 1: Supported.
  • BMISupported: Indicates whether BMI data is supported.
    • 0: Not supported.
    • 1: Supported.

Custom Command Service Data

The TAnDScaleCommandService record type contains the command to send to the A&D Weight Scale for the custom services.

  • Value: Raw array of bytes to be sent to the device.
  • CommandType: Type of the command: ReadCommand, WriteCommand, ResponseAtPeripheralOnly.
  • CommandID: Returns the command to handle device setting and status:
    • 1: Set time.
    • 3: Disconnect.
    • 4: Read set time date.
    • 16: Unpair.
    • 17: Unit change.
    • 18 Delete all memory.
    • 19 Set gravity acceleration.
    • 166: Set buffer size.
    • 219: Read device settings.
    • 225: Send buffer data request.
  • WeigthUnit: Unit system set by the constructor.
    • 00: Kilograms.
    • 01: Pounds.
  • GravityAcceleration: Gravity acceleration value set by the constructor.
  • BufferSize: Returns the buffer size.
  • TimeStamp: Time value that was set by the constructor.
  • ReadDeviceSettingsResponse: Returns a TAnDScaleDeviceSettingsResponse record type with the response data.
    • GravityAcceleration: Gravity acceleration value. Valid range is from 9744 to 9999.
    • MeasurementUnit: Measurement unit value set on the device:
      • 00: Kilograms.
      • 01: Pounds.
    • BufferAvailability:
      • 00: No buffer available.
      • 01: Buffer available.
    • CurrentBufferNumber: Current buffer number of the device. Valid range is from 0 to 90.
    • SumOfMeasurements: Total number of measurements.

Device Details

  • Device: A&D Weight Scale
  • Model: UC-352BLE
  • Firmware: CWSP008_110
  • Technology: Bluetooth LE

Known Issues

  • A&D Weight Scale device cannot be paired to a Windows machine. If the target platform of your application is 32-bit Windows or 64-bit Windows, it cannot be paired to the A&D Weight Scale.

See Also