Scriptronics SG90 Servo Motor, PIR Motion Sensor and Ultrasonic Sensor | Robotics Project compatible with Arduino Educational Electronic Hobby Kit

The HC-SR04 ultrasonic sensor uses sonar to measure the distance to an object. It offers excellent range accuracy and stable readings in an easy-to-use package. Its operation is not affected by sunlight or black material like sharp range finders are (soft materials like cloth can be difficult to detect). PIR infrared sensor module is based on infrared technology, automatic control products. High sensitivity, high reliability, low power consumption, low voltage operation mode. Widely used in various auto-sensing electrical equipment, especially for battery-powered automatic control products. SG90 Servo Motor: Torque: 1.8 kg-cm (4.8v). Speed: 0.10 sec/60 degree. Weight: 9 grams. Gear Type: Plastic. Rotational Range: 180 degree.