Technical FAQ
Hardware, electronics, and software specifications
Q:What microcontroller does Fabrica use?
A:
Fabrica is built around the Raspberry Pi Pico 2W, which features the powerful RP2040 chip and built-in Wi-Fi.
Q:Why use a PCA9685 driver?
A:
The PCA9685 allows us to control up to 16 servo motors using only two pins on the Pico (via I2C). It also provides a dedicated power input for the motors, protecting the Pico from high-current spikes.
Q:Can I use SG90 servos instead of MG90S?
A:
Yes, but it's not recommended. SG90 servos have plastic gears that can strip under the load of folding heavy fabrics. MG90S servos have metal gears and are much more durable.
Q:What programming language is used?
A:
The control software is written in MicroPython, making it easy for beginners to understand and modify while still providing excellent performance.