https://devzone.nordicsemi.com/f/nordic-q-a/18026/nrf51822-and-adxl345-register-addressHi to everyone, i have the mpu6050 code and i have to change it with parameters of adxl345. i have this definitions: #define ADDRESS_WHO_AM_I (0x75U) //!&lt; WHO_AM_I register identifies the device. Expected value is 0x68. static const uint8_t expected_who_am_ien-USTelligent Community 13Mon, 28 Nov 2016 20:08:44 GMThttps://devzone.nordicsemi.com/thread/69488?ContentTypeID=1Mon, 28 Nov 2016 20:08:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:35c2c65d-47f1-423b-8f41-866888e09548Sigurd<p>Hi,</p> <p>Yes, the default device address for ADXL345 is 0x53.</p> <p>The U in 0x53U means that it is an unsigned hexadecimal value. If the ‘U’ is removed then it is a signed hexadecimal value.</p><div style="clear:both;"></div>