🔥 How to Connect a Relay to Different Microcontrollers! 🤖⚡
A relay is an electrically controlled switch that allows a low-power microcontroller (like Arduino, ESP32, Raspberry Pi, or STM32) to control high-power devices (motors, lights, …
Category: Integrated Circuits
Complex circuits inside a single package.
4N35: Optocoupler (Opto-Isolator) Explained
The 4N35 is an optocoupler (opto-isolator) that provides electrical isolation between two circuits using light. It is commonly used in signal isolation, microcontroller interfacing, and …
CP2102: A Complete Guide
The CP2102 is a USB-to-serial (UART) bridge developed by Silicon Labs. It is widely used for connecting microcontrollers (Arduino, ESP8266, STM32) and other serial-based devices …
CH340G: A Complete Guide
The CH340G is a USB-to-Serial (UART) converter IC developed by WCH (Nanjing QinHeng Electronics). It is commonly used to enable serial communication between microcontrollers (Arduino, …
Non-Inverting Amplifier Using LM358
A non-inverting amplifier is a widely used operational amplifier (op-amp) configuration that amplifies an input signal without inverting its phase. The LM358 is a popular …
There are multiple ways to play music on an Arduino
ranging from simple beeps to high-quality MP3 playback. Below are the most common methods, each with its pros, cons, and use cases. 1. Using tone() …
There are multiple ways to make an LED blink on an Arduino.
Here are some common methods: 1. Using delay() (The Basic Method) ✅ Pros: ❌ Cons: 📌 Example Code 🛠 Use Case: 2. Using millis() (Non-blocking …
How to Use Arduino Digital Pins
Arduino digital pins are highly versatile and can be used for basic I/O, PWM, serial communication, I2C/SPI interfaces, and interrupts. Whether controlling LEDs, reading sensors, or communicating with other devices, understanding digital pins unlocks the full potential of Arduino.
FT232RL: A Complete Guide
The FT232RL is a USB-to-serial (UART) bridge developed by FTDI (Future Technology Devices International). It is widely used for serial communication between microcontrollers (Arduino, ESP8266, STM32, etc.) and computers via USB
STC15W408AS Microcontroller: A Detailed Guide
The STC15W408AS is a powerful, low-cost, and low-power microcontroller based on the 8051 architecture. It is ideal for simple embedded applications, but not as beginner-friendly as Arduino or STM32. It is best suited for home automation, motor control, and industrial projects where power efficiency is important.