Using Media Files in DjangoThis is must-know Django stuff 👍Let’s walk through media files in Django clearly, from setup → usage → best practices. 1️⃣ What are media files? Media files are user-uploaded files, like: Profile photos Blog featured images PDFs, documents, etc....Feb 8, 2026·3 min read
Height Measurement Using Ultrasonic sensorheight measurement #include <Wire.h> #include <LiquidCrystal_I2C.h> LiquidCrystal_I2C lcd(0x27, 16, 2); // Change 0x27 to 0x3F if not working #define TRIG 9 #define ECHO 10 // Height of sensor from ground in cm int sensorHeight = 200; void set...Dec 5, 2025·1 min read
Using 16*2 display16×2 LCD with I²C backpack (PCF8574) on Arduino/ESP boards. ✅ Hardware Connections Since it uses I²C, only 4 wires are required: LCD PinConnect to VCC5V GNDGND SDAESP8266 → D2 (GPIO4) / ESP32 → GPIO21 / Arduino Uno → A4 SCLESP8266 → D1 (GP...Nov 28, 2025·2 min read
Smart Door System#include <Servo.h> #define TRIG_PIN 9 #define ECHO_PIN 10 #define SERVO_PIN 6 Servo lidServo; void setup() { pinMode(TRIG_PIN, OUTPUT); pinMode(ECHO_PIN, INPUT); lidServo.attach(SERVO_PIN); lidServo.write(90); // Lid closed initially Serial...Nov 21, 2025·1 min read
Esp8266 Wifi BotHere’s a clear and well-structured documentation for your ESP8266 WiFi Robot Car project that includes setup, features, code explanation, and troubleshooting. 🚗 ESP8266 WiFi Robot Car (AP Mode + Web UI) This project allows you to control a robotic ...Nov 4, 2025·7 min read
Grade 11 Web Technology Ic🌐 Unit 6: Web Technology 6.2 Web Browsers and Search Engines 🌍 Web Browser A web browser is an application software that allows users to access, view, and interact with web pages on the internet. 🔹 Common Web Browsers Google Chrome Mozilla Fire...Oct 11, 2025·10 min read
🔧 Creating and Understanding a systemd Service File on Raspberry PiA systemd service file is used in Linux (including Raspberry Pi OS) to define how a service (like a Python script or web server) should be started, stopped, restarted, and managed. Here’s the basic structure of a .service file: [Unit] Description=You...Jun 22, 2025·3 min read
