Example 41: MPU6050 Gyroscope

Experiment Overview

MPU6050 is a 6-axis motion sensor (3-axis accelerometer + 3-axis gyroscope) that communicates via I2C. It can detect tilt angle, motion direction, vibration, and more. FastBee includes built-in MPU6050 driver in Standard / Full firmware.

Note: This feature requires FASTBEE_ENABLE_I2C_SENSORS=1; disabled by default in Lite firmware.

Hardware Wiring

Board Label	GPIO Pin	Connected Device
SDA	GPIO21	MPU6050 SDA
SCL	GPIO22	MPU6050 SCL

MPU6050 I2C address: AD0 to GND = 0x68, AD0 to VCC = 0x69.

JSON Configuration Example

{
  "peripherals": [
    {
      "id": "mpu6050_01",
      "name": "MPU6050 Gyroscope",
      "type": 38,
      "enabled": false,
      "pins": [21, 22],
      "params": {
        "category": "mpu6050",
        "i2cAddress": "0x68"
      }
    }
  ]
}

Data Channels

Channel	Field Name	Unit	Description
0	accelX	m/s²	X-axis acceleration
1	accelY	m/s²	Y-axis acceleration
2	accelZ	m/s²	Z-axis acceleration
3	temperature	°C	Chip temperature

Peripheral Execution Linkage

Scenario: Tilt Detection (Timer Trigger)

Feature: Periodically read MPU6050 acceleration data to detect device tilt

Web UI Configuration Steps

Step 1: Create Rule

1. Click Peripheral Config in the left menu → Switch to Peripheral Execution tab
2. Click New Rule button
3. Fill in basic configuration:
   • Rule Name: Tilt Detection
   • Report Data: ✅ Enabled
   • Enable: ✅ Enabled

Step 2: Configure Trigger (Timer Trigger)

1. Click Add Trigger button

2. Fill in trigger configuration:

   Field	Value	Description
   Trigger Type	Select Timer Trigger	Periodic collection
   Timer Mode	Select Fixed Interval	Millisecond interval
   Interval	500	500ms

Step 3: Configure Action (Sensor Read)

1. Click Add Action button

2. Fill in:

   • Action Type: Select Sensor Read
   • Target Peripheral: Select mpu6050_01
   • Data Field: accelX (X-axis acceleration)

3. Click Save button

MPU6050 Data Channels

Channel	Field Name	Unit	Description
0	accelX	m/s²	X-axis acceleration
1	accelY	m/s²	Y-axis acceleration
2	accelZ	m/s²	Z-axis acceleration
3	temperature	°C	Chip temperature

Notes

1. Firmware Version: Use Standard / Full firmware, or enable FASTBEE_ENABLE_I2C_SENSORS in custom build
2. Calibration: Place the sensor at rest for zero-point calibration on first use
3. Mounting Direction: Sensor mounting orientation determines axis correspondence
4. Sampling Rate: 100-500ms sampling interval recommended for motion detection
5. I2C Sharing: Can share the same I2C bus with BMP280 and other devices