Bluetooth

📋 BLUETOOTH COMMANDS AND PARAMETERS

🔧 DEVICE CONFIGURATION

Command	Parameter	Description	Example
set address	1-255	Sets the device Modbus address	set address 5
set baudrate	2400,4800,9600,19200,38400,57600,115200	Sets the RS485 communication speed	set baudrate 19200

📡 WIFI MANAGEMENT

Command	Description	Result
wifi enable	Activates the WiFi hotspot	SSID: STATOTEST_LASERX, password: statotest2024
wifi disable	Deactivates WiFi	Turns off the WiFi module

📏 MEASUREMENT

Command	Description	Response
stt measure	One-off measurement	MEASURE STARTED + JSON data
stt continuous measure start	Starts continuous measurement (1s interval)	CONTINUOUS MEASURE STARTED
stt continuous measure stop	Stops continuous measurement	CONTINUOUS MEASURE STOPPED

🔴 LASER CONTROL

Command	Description	Response
laser on	Turns on the laser light	LASER ON
laser off	Turns off the laser light	LASER OFF

ℹ️ DEVICE INFORMATION

Command	Description	Example response
fw version	Firmware version	FW version: 1
hw version	Hardware version	HW version: 2
help	Shows the help	Complete list of commands

🔄 SYSTEM COMMANDS

Command	Description	Result
restart	Restarts the device	Immediate ESP32 restart

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📊 MEASUREMENT DATA FORMAT

During a measurement, data is sent in JSON format:

[
  {
    "SensorId": 90,
    "Channel": 0,
    "value": 1.2345,
    "unit": "m",
    "sensor": "laser",
    "type": "displacement"
  },
  {
    "SensorId": 90,
    "Channel": 0,
    "value": 23.5,
    "unit": "C",
    "sensor": "laser",
    "type": "temperature"
  },
  {
    "SensorId": 90,
    "Channel": 0,
    "value": 3.3,
    "unit": "V",
    "sensor": "laser",
    "type": "voltage"
  }
]

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🔗 CONNECTION

• Device name: STATOTEST-LASER-X (where X = the device address)
• Service UUID: 6E400001-B5A3-F393-E0A9-E50E24DCCA9E
• RX Characteristic: 6E400002-B5A3-F393-E0A9-E50E24DCCA9E (for sending commands)
• TX Characteristic: 6E400003-B5A3-F393-E0A9-E50E24DCCA9E (for receiving responses)

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⚠️ NOTES

• All commands are case-sensitive
• Unknown commands return: UNKNOWN COMMAND: [your command]
• Changes to the address and baudrate are saved to the flash memory
• The WiFi hotspot has a timeout of 600 seconds (10 minutes)
• Continuous measurement runs until it is explicitly stopped