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Foreo Luna Fofo Protocol

Introduction​

The Foreo Luna Fofo is a Bluetooth LE facial cleansing device with a vibration motor, battery reporting, and skin conductivity sensing.

BLE Profile​

ble_names:
  - "FOFO"
services:
  - uuid: "0000fff0-0000-1000-8000-00805f9b34fb"
    characteristics:
      - uuid: "0000fff1-0000-1000-8000-00805f9b34fb"
        properties: [write]
        role: tx
        description: "Motor control"
      - uuid: "00000a00-0000-1000-8000-00805f9b34fb"
        properties: [notify]
        role: rx
        description: "Battery level (read)"
      - uuid: "00000a05-0000-1000-8000-00805f9b34fb"
        properties: [read, write]
        role: rx/tx
        description: "Skin conductivity"

Commands​

Motor Control (0xfff1)​

01 01 0X

Where X is speed 0x0–0xa.

Battery Level (0x0a00)​

Read or subscribe. Returns 0x64 for 100% (full).

Skin Conductivity (0x0a05)​

Write 0xef to initialize the skin conductivity sensor. Returns 2 bytes; interpretation of the returned values is unknown.

Notes​

  • The skin conductivity sensor return values have not been reverse engineered.

Sources​