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Lesson 47: Improving Sensor Data With a Low Pass Filter

This tutorial covers using the MPU6050 sensor with the Raspberry Pi Pico W to create a stable two-axis tilt meter by implementing a low-pass filter:

• Setup: Connect the MPU6050 to the Raspberry Pi Pico W.

• Concept: Measure tilt using accelerometer data, addressing errors from acceleration.

• Low-Pass Filter: Implement to smooth data using the equation: \(\text{new value} = \text{confidence} \times \text{measurement} + (1 - \text{confidence}) \times \text{old value}\).

• Code: Measure X, Y, Z, filter pitch and roll angles, and display results.

• Homework: Test the low-pass filter and experiment with confidence values.

Video