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VibCrafter

Introduction​

VibCrafter devices use AES-encrypted BLE communication with a challenge-response authentication handshake before accepting text-based commands for dual motor intensity, patterns, heat, and light control.

BLE Profile​

ble_names:
  - "be gentle"
services:
  main:
    uuid: 53300051-0060-4BD4-BBE5-A6920E4C5663
    characteristics:
      tx: 53300052-0060-4BD4-BBE5-A6920E4C5663
      rx: 53300053-0060-4BD4-BBE5-A6920E4C5663

All communication is AES-encrypted using the key jdk#Cra%f5Vib28r.

Authentication​

Authentication must be completed before any control commands are accepted.

  1. Send to Tx: Auth:????????; (replace ???????? with 8 random characters)
  2. Receive from Rx: XXXX:YYYYYY;
  3. Compute SHA256 of YYYYYY
  4. Take the first 4 characters of the uppercase hex digest as ZZZZ
  5. Send to Tx: Auth:ZZZZ;
  6. Receive from Rx: OK;

Commands​

All commands are ASCII strings sent after successful authentication.

Query Commands​

CommandDescription
GetMotor;Query motor state
GetLight;Query light state
GetHeat;Query heat state
GetVer;Query firmware version
Battery;Query battery level

Set Motor Intensity​

MtInt:XXYY;
  • XX — motor 1 intensity: 00–99
  • YY — motor 2 intensity: 00–99

Stop Motors​

MPZZ00000000

Pattern Mode​

Patterns are activated by name via JSON payload. Named patterns include: shockwave, swing, lightning, and others.

Sources​