Tito biped robot

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Tito, a walking and dancing DIY biped robot, draws inspiration from Zowi, a robot based on BOB, the original biped robot that relies solely on four servos to move about. Tito boasts several key improvements over its predecessors: it can accommodate an Arduino UNO board, or one of similar size, within its head; a simple mouth is created by three strategically placed LEDs; the top of the head has been rounded for a more streamlined look; the legs have been strengthened with increased thickness and reinforced rounds; the feet feature rounded tops for improved stability; the chassis or base has been simplified for easier construction; the connectors are now located at the back, making it effortless to reprogram or energize the robot. To build Tito, you will need: Arduino UNO or a compatible board - I personally use a DFRduino R3; a Nano breadboard or the option to solder all cables directly; a buzzer for added sound effects; four Futaba servos of model S3003; an HC-SR04 Ultrasound sensor for navigation and detection; twenty M3 nuts for securing various components; twelve M3 screws, twenty in total, for assembling the robot's frame; and an optional powerbank or simply a USB connection to power your Arduino board. Refer to the schematic picture provided for detailed connection instructions. Note that the HC-SR04 Ultrasound sensor is not shown in the original diagram but should be connected as follows: its trig pin to pin 8 and echo pin to pin 9 on the Arduino board. The same original code used by Otto DIY can be found at https://github.com/OttoDIY/DIY