Nice robot build from 1nxtmonster on YouTube.
A 3D printed robot with lights, sounds, and movements. It can drive around, move its arms, turn its head via pneumatics, and flash the LED lights. It is also equipped with a PIR motion sensor to detect when a person is present. The robot is controlled by an onboard Raspberry Pi, which utilizes Adafruit’s PWM Pi Hat to control all of the outputs. Coding was done in Python, the robot was drawn in AutoCAD 2014.
The robot is programmed to move around, flashing its lights and moving its arms. It then searches for motion with its PIR motion sensor. If motion is detected, indicating a viewer is present, it will begin a presentation about itself: “Hello. I am the XP1000 humanoid robot. I have many functions. I can drive around. I can flash my lights. I can move my arms. I can move my head. I am also equipped with a motion sensor, that is how I know to talk to you.” The program then repeats.
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Adafruit 16-Channel PWM / Servo HAT for Raspberry Pi – Mini Kit: The Raspberry Pi is a wonderful little computer, but one thing it isn’t very good at is controlling DC Servo Motors – these motors need very specific and repetitive timing pulses to set the position. Instead of asking the Pi Linux kernel to send these signals, pop on this handy HAT! It adds the capability to control 16 Servos with perfect timing. It can also do PWM up to 1.6 KHz with 12 bit precision, all completely free-running. Read more.
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