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Project Work

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 Project Work Voice control Robot:-       Components Needed: Arduino Uno (or Nano) L298N Motor Driver 2 DC Motors + Wheels Robot chassis HC-05 Bluetooth module Jumper wires Battery (7–12V) Android phone 🧠 How It Works You speak into your phone. A voice control app converts speech → text. The app sends command via Bluetooth. Arduino receives command. Motors move accordingly. 🔌 Wiring Overview 1️⃣ Bluetooth (HC-05) VCC → 5V GND → GND TX → Arduino RX RX → Arduino TX (use voltage divider) 2️⃣ Motor Driver (L298N) IN1 → Arduino pin 8 IN2 → Arduino pin 9 IN3 → Arduino pin 10 IN4 → Arduino pin 11 Motors connected to OUT1, OUT2 Battery to 12V input Coding :-   char command; void setup() {   Serial.begin(9600);   pinMode(8, OUTPUT);   pinMode(9, OUTPUT);   pinMode(10, OUTPUT);   pinMode(11, OUTPUT); } void loop() {   if (Serial.available()) {   ...
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Importance and History of Robotics

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 History of Robotics  A Brief History of Robotics (in Simple Words) Robotics has a long history that goes back thousands of years, starting with simple machines and leading to today’s intelligent robots. Early Ideas and Machines Ancient times (around 350 BCE – 1200 CE): People built early mechanical devices called automata. For example, Archytas made a steam-powered wooden bird, and Al-Jazari created machines that could play music and help people wash their hands.            Renaissance (1495): Leonardo da Vinci designed a “mechanical knight” that could move its arms, sit down, and open its mouth.                                  Industrial Revolution (1804): Joseph-Marie Jacquard invented the Jacquard Loom. It used punch cards to control patterns, which was an early form of programming.                  ...
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Important facts about modern technology

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  Main Sensors in a Smartphone and Their Functions No. Sensor Name What It Does (Function) Used In 1️⃣ Accelerometer Measures linear acceleration (movement and tilt) along X, Y, Z axes. Screen rotation, step counting, shake detection 2️⃣ Gyroscope Measures rotation and angular velocity (how fast the phone turns). Gaming, VR/AR, panorama camera mode 3️⃣ Magnetometer Detects magnetic fields → helps find direction (like a compass). Maps, compass apps, location accuracy 4️⃣ Proximity Sensor Detects how close an object is to the screen. Turns screen off during a call 5️⃣ Ambient Light Sensor Measures surrounding light intensity. Auto screen brightness adjustment 6️⃣ GPS (Global Positioning System) Uses satellites to find location. Maps, navigation, tracking, geotagging 7️⃣ Fingerprint Sensor Reads unique fingerprint patterns. Security, phone unlock, payments 8️⃣ Barometer Measures air pressure → helps calculate altitude. Weather apps, GPS accuracy, fitness tracking 9️⃣ Temperature Sens...
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Raspberry pi

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Syntax:-  What is Raspberry pi Types of this How to install light blink traffic light project IR sensor connect to pi LDR sensor connect to pi Camera connect to pi Raspberry pi  -  A Raspberry Pi is a small computer that can run a full operating system (usually Linux). It has more power and features than a microcontroller, like USB ports, HDMI output, Wi-Fi, and the ability to run complex software. There are various types of  Raspberry pi model Raspberry Pi 4 Model B Raspberry Pi 3 Model B+ Raspberry Pi 3 Model B Raspberry Pi Zero 2 W Raspberry Pi Zero W Raspberry Pi 400 Raspberry Pi Pico How to install Raspberry pi 4   Go to google and paste this link https://www.raspberrypi.com/softwar Clink on Download install this imager insert SD card in card reader and connect to computer and click on choose storage.  After process remove SD card and put in Raspberry pi And connect Raspberry pi to monitor/computer/laptop by HDMI cable and c-type cable, Now y...
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