Page 143 - KEC Khaitan C6 Flipbook
P. 143
2. Code:
Block Code Pin Diagram
3. Test:
∑ Press A: Motor turns on.
∑ Press B: Motor turns off.
Component Micro:bit Pin Connection
Micro:bit GND Ground (common)
Pin 1 (P1) P1 Base of NPN Transistor
NPN Transistor Collector Negative terminal of DC motor
DC Motor Positive terminal Power supply (e.g., 3V or 5V)
SONAR AND SERVO EXTENSIONS IN MAKECODE FOR MICRO:BIT
The Sonar and Servo extensions in MakeCode facilitate the utilization of ultrasonic sensors and
servo motors with the Micro:bit, frequently employed in robotics, automation, and interactive
projects.
The Sonar extension operates with ultrasonic sensors, like the HC-SR04, which utilize sound waves
and the duration of the echo's return to ascertain distance. Projects requiring object detection or
distance measuring frequently use these sensors.
Servo motors, which rotate to predetermined angles (usually between 0° and 180°), can be
controlled using the Servo extension. These motors are ideal for applications requiring precise
movement control, such steering systems, robotic arms, or machine moving parts.
Step 1 Adding the Extensions
∑ Open MakeCode for Micro:bit at MakeCode for Micro:bit.
Building Smart Solutions: An Introduction 141

