R2D2 - motorized

thingiverse

I'm building a custom R2D2 robot using a RaspberryPi Zero W and small robot motors, measuring 35x25x25 cm. The print time for this project takes over 25 hours to complete. For distance measurement, I employ two SR04 sensors. The operating system running on the Pi is Raspbian Jessie, which can be downloaded from https://www.raspberrypi.org/downloads/raspbian/. I utilize an I2C library found at https://github.com/raspberry-sharp/raspberry-sharp-io, and a huge thank you goes to its creator for this excellent resource. The I2C board is comprised of a 16-channel PWM driver from Adafruit's product line, available at https://www.adafruit.com/product/815. Powering the Pi and ServoMotors requires two separate switch-mode BECs, each capable of delivering 6A, sourced from http://www.dx.com/p/hobbywing-5v-6v-3a-switch-mode-ultimate-bec-ubec-15149#.V10qMPmLShc. Motor control is handled by the L298N Dual H-Bridge DC Motor Driver, obtainable at http://www.dx.com/p/l298n-dual-h-bridge-dc-motor-driver-for-robot-smart-car-green-154444#.V3lQe7iLShc. The DC motors used are TT02 DIY car model TT motors with encoders and wheels, sourced from http://www.dx.com/p/tt-02-diy-car-model-tt-motor-encoder-w-wheel-black-yellow-257135#.V3lVj7iLShc. For distance measurement, I rely on the HC SR04 ultrasonic module, available at https://www.banggood.com/Wholesale-Ultrasonic-Module-HC-SR04-Distance-Measuring-Ranging-Transducer-Sensor-p-40313.html?rmmds=search&cur_warehouse=UK.