How to setup 16x2 lcd on Arduino? Its not big issue ,read full blog and watch video at the end... Read More

PIR modules have a 3-pin connection at the side or bottom. The pinout may vary between modules so triple-check the... Read More

⏰ What is DS1307 RTC?The DS1307 is a real-time clock IC by Maxim Integrated that keeps track of:SecondsMinutesHours (12 or 24-hour mode)Day, Date, Month, YearAutomatically adjusts... Read More

🌡️ What is DS18B20?The DS18B20 is a digital temperature sensor from Maxim Integrated (now Analog Devices), known for:✅ Accurate temperature readings✅ Unique 64-bit serial code (for... Read More

🎵 What is DFPlayer Mini?The DFPlayer Mini is a tiny, standalone MP3 audio player module. It can play audio files (MP3/WAV) stored on a... Read More

📌 What is ESP-NOW?ESP-NOW is a wireless communication protocol developed by Espressif, allowing ESP32 boards to send and receive data directly without Wi-Fi... Read More

📌 What is the Dot Matrix Display with MAX7219?A Dot Matrix Display is an arrangement of LEDs in a grid (commonly 8x8)... Read More

🧠 What is a PIR Sensor?PIR = Passive Infrared SensorA PIR sensor detects motion by measuring changes in infrared radiation.Every warm object (like... Read More

📡 What is SIM900?The SIM900 is a GSM/GPRS module from SIMCom. It allows microcontrollers like ESP32 or Arduino to:✅ Send/receive SMS✅ Make/receive phone calls✅ Connect to... Read More

 23-07-2025📌 What is a Rotary Encoder?A rotary encoder is an electro-mechanical sensor that converts the angular position or motion of a rotating shaft into digital... Read More