用的mini的板子,I2C用的原子哥的软件模拟,ACK也收到了,但是读取WHO_AM_I寄存器出来的数据是0x72不是0x68,困扰了几天不是杜邦线的问题,直接插在排母上也是0x72;
又换了块新的GY-87,读出来还是0x72;
翻手册
The reset value is 0x00 for all registers other than the registers below.
 Register 107: 0x40.
 Register 117: 0x68.