HiLetgo GY-521 MPU-6050 MPU6050 3 Axis Accelerometer Gyroscope Module 6 DOF 6-axis Accelerometer Gyroscope Sensor Module 16 Bit AD Converter Data Output IIC I2C for Arduino Small Blue

I needed to apply a major correction to the z acceleration axis- it was reading very nearly twice what it should. (I don't know if the other axes are that bad, yet.)

This newer batch of blue ones does not seem to function correctly out of the box. It looks like others found the same issue and varying attempts to make it work with limited success. It is not worth the time trying to see if you have a bad unit or if you can surgically patch it together to make it function. Looking at the data coming out of mine is not correct. It does not track X or Y axis at all. The values move just sitting still and very between 84 and 89 degrees no matter how it is moved. No idea on the g sensor. Find something else.

Great

This is an amazingly capable (matrix of) sensor(s). It hides a lot of its capability under the covers; it can be used for a variety of tasks (with some creative thinking). At first glance it looks expensive, but it can be used to replace a variety of other sensors (ex: shock sensors, tilt sensors, inclinometer, thermometer etc.), making it a great value for the money.

This Works well, first I thought there is something wrong with this because I couldn't run it stably, later found my mistakes and could figure out, I have not test the accuracy yet, so I will let you know the precision in practice,