【NanoPi NEO2 开发板试用体验】测试I2C接口读取MPU6050

今天找到了一个GY521小板子，上面有MPU6050芯片，包含了陀螺仪与加速器。 运行npi-config命令检查“Advanced Options”的I2C0设置是否“enabled", 连接GY521与Neo2， GY521*VCC —— Neo2*Pin1:SYS_3.3V GY521*GND —— Neo2*Pin6:GND GY521*SCL —— Neo2*Pin5:I2C0_SCL GY521*SDA —— Neo2*Pin3:I2C0_SDA 因要在python中使用I2C接口，安装smbus2

sudo pip3 install smbus2

程序文件mpu6050_demo.py如下：

#!/usr/bin/python3



import smbus2

import time  



 

bus = smbus2.SMBus(0)

bus.write_byte_data(0x68, 0x6b, 0)



while True:

    gyro_data = bus.read_i2c_block_data(0x68, 0x43, 6)

    accel_data = bus.read_i2c_block_data(0x68, 0x3b, 6)



    gyro_x = ((gyro_data << 8) + gyro_data)

    gyro_y = ((gyro_data << 8) + gyro_data)

    gyro_z = ((gyro_data << 8) + gyro_data)



    accel_x = ((accel_data << 8) + accel_data)

    accel_y = ((accel_data << 8) + accel_data)

    accel_z = ((accel_data << 8) + accel_data)

    print('gyro: x=%05d, y=%05d, z=%05d \t\t accel: x=%05d, y=%05d, z=%05d'%(gyro_x,gyro_y,gyro_z,accel_x,accel_y,accel_z))

    time.sleep(1)

执行mpu6050_demo.py

sudo python3 mpu6050_demo.py

可读取到陀螺仪与加速器的数值：

sudo pip3 install smbus2

#!/usr/bin/python3



import smbus2

import time  



 

bus = smbus2.SMBus(0)

bus.write_byte_data(0x68, 0x6b, 0)



while True:

    gyro_data = bus.read_i2c_block_data(0x68, 0x43, 6)

    accel_data = bus.read_i2c_block_data(0x68, 0x3b, 6)



    gyro_x = ((gyro_data << 8) + gyro_data)

    gyro_y = ((gyro_data << 8) + gyro_data)

    gyro_z = ((gyro_data << 8) + gyro_data)



    accel_x = ((accel_data << 8) + accel_data)

    accel_y = ((accel_data << 8) + accel_data)

    accel_z = ((accel_data << 8) + accel_data)

    print('gyro: x=%05d, y=%05d, z=%05d \t\t accel: x=%05d, y=%05d, z=%05d'%(gyro_x,gyro_y,gyro_z,accel_x,accel_y,accel_z))

    time.sleep(1)

sudo python3 mpu6050_demo.py