Use gyro and ultrasonic eyes

[josephburnett]

Currently the software cannot use the gyro and ultrasonic eyes at the same time.

OpenCat/OpenCat.ino

Line 55 in 902c319

// you can also activate the following modes (they will disable the gyro to save programming space)

Is this a software limitation (making the compiled code smaller) or a hardware limitation (not enough registers)? I am interested in improving the code to have both working at the same time.

[borntoleave]

ATmega328P only has 32 KB flash and 2 KB SRAM. The added features and UI eventually filled up the programming space (Flash), making it difficult to run two large modules simultaneously. The 64Kb I2C EEPROM used for saving behaviors data is also filled up. You can comment out the IR_PIN and disable the Neopixels in the Ultrasonic sensor to save space for the Gyro.

We are moving to OpenCatESP32, where the computational resources are more abundant.