Build Motion Controlled Uncanny Eyes on TFT Displays with Teensy 4.1 + MPU6050 IMU

Build gyro controlled eyes—true motion controlled / movement controlled eyes—with an uncanny eyes setup powered by a Teensy 4.1 IMU. We integrate MPU6050 Teensy 4.1 using the MPU6050 (GY-521) over I2C IMU and drive 2 TFT displays. The project features round TFT display panels: 240x240 TFT GC9A01 and ST7789 (Teensy GC9A01, Teensy ST7789). Inspired by Adafruit uncanny eyes, this Teensy uncanny eyes build runs on Teensy 4.1 end-to-end. The eyes are responding to or mimicking the motion detected by the IMU - they move when the IMU moves.

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Chapter:
0:00 intro
0:14 parts list
0:36 use uncanny library and gyro
1:14 the mpu-6050 gyroscope and accelerometer
1:35 mpu-6050 wiring to Teensy 4.1
1:57 the GC9A01 round display
2:25 GC9A01 display wiring
2:47 decoupling capacitors
3:22 the uncannyeye library
3:48 the uncannyeye code
4:20 adjust uncannyeyes to be larger
5:15 upload large dragon eyes
5:51 the goat eyes + others
6:30 add a gyroscope + accelerometer
8:01 the IMU header tab addition
9:06 the IMU header code
9:23 another IMU uncannyeyes demo

We cover IMU sensor fusion with a complementary filter, gyro bias correction, drift correction, and real time IMU gaze control. Perfect for animatronic eyes, robot eyes, and cosplay animatronics—including MPU6050 calibration on Arduino Teensy. A hands-on STEAM project start to finish.