Diego-San

Diego-San is a research humanoid robot modeled after a 1-year-old infant, designed to study cognitive and social development through human-robot interaction. Featuring a hyper-realistic head by Hanson Robotics with 27 servo motors for lifelike facial expressions and high-definition eye cameras for perceiving gestures and people, it mounts on a Kokoro body with 44 pneumatic actuators mimicking muscle dynamics. Equipped with 71 degrees of freedom, including bipedal legs, dexterous arms, and compliant joints, Diego-San learns via AI modeled on baby cognition, using sensors like IMUs, microphones, pressure sensors, and potentiometers. Standing oversized at 130 cm and 35 kg for hardware accommodation, it advances emotionally relevant robotics, enabling studies in sensory-motor skills, facial communication, and early childhood behaviors in collaborative research settings.