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Arduino Projects

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Interface MLX90614 Non-contact Infrared Temperature Sensor with Arduino

Interface MLX90614 Non-contact Infrared Temperature Sensor with Arduino

Since the emergence of COVID-19, non-contact infrared temperature scanners have...

Interface L298N DC Motor Driver Module with Arduino

Interface L298N DC Motor Driver Module with Arduino

So, you’re planning to build your own two-wheel-drive robot? That’s...

Interfacing MAX4466 Microphone Amplifier Module with Arduino

Interfacing MAX4466 Microphone Amplifier Module with Arduino

Add an ear to your project with the MAX4466 microphone...

Interface DS3231 Precision RTC Module with Arduino

Interface DS3231 Precision RTC Module with Arduino

Whether you’re building a digital clock, logging sensor data with...

Interfacing DHT11 and DHT22 Sensors with Arduino

Interfacing DHT11 and DHT22 Sensors with Arduino

Looking to keep track of the climate in your greenhouse,...

Interface Two Channel Relay Module with Arduino

Interface Two Channel Relay Module with Arduino

Got an Arduino project that needs to control something running...

Interfacing the MAX7219 8-Digit 7-Segment Display with Arduino

Interfacing the MAX7219 8-Digit 7-Segment Display with Arduino

Whether you’re making a countdown timer, a score counter, a...

Interface ublox NEO-6M GPS Module with Arduino

Interface ublox NEO-6M GPS Module with Arduino

Want to give your Arduino the ability to know exactly...

Interfacing Flex Sensor with Arduino

Interfacing Flex Sensor with Arduino

A flex sensor, also known as a bend sensor, is...

How Rotary Encoder Works and Interface It with Arduino

How Rotary Encoder Works and Interface It with Arduino

Have you ever turned the volume knob on a speaker,...

ESP32 Projects

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How to Create an ESP32 Web Server with WebSockets in Arduino IDE

How to Create an ESP32 Web Server with WebSockets in Arduino IDE

Let’s say we need to create a project that uses...

How to set a Static or Fixed IP Address on your ESP32

How to set a Static or Fixed IP Address on your ESP32

If you’ve ever tried running a web server on an...

Insight Into ESP32 Sleep Modes & Their Power Consumption

Insight Into ESP32 Sleep Modes & Their Power Consumption

The ESP32 is an impressive piece of silicon—it packs two...

How to Build an ESP32 Wi-Fi Clock with a TM1637 Display

How to Build an ESP32 Wi-Fi Clock with a TM1637 Display

Imagine never having to set your clock again, even after...

How to Solve “A Fatal Error Occurred: Failed to Connect to ESP32: Timed Out Waiting for Packet Header”

How to Solve “A Fatal Error Occurred: Failed to Connect to ESP32: Timed Out Waiting for Packet Header”

So, you’re trying to upload a new sketch to your...

Configuring & Handling ESP32 GPIO Interrupts In Arduino IDE

Configuring & Handling ESP32 GPIO Interrupts In Arduino IDE

If you’ve been working with the ESP32 for a while,...

ESP32-C3 Super Mini Pinout Reference

ESP32-C3 Super Mini Pinout Reference

The ESP32-C3 Super Mini shows just how much technology can...

ESP32 Data Logging with DHT22 and Real-Time NTP Timestamps

ESP32 Data Logging with DHT22 and Real-Time NTP Timestamps

Have you ever wanted to build a project that not...

ESP32 Deep Sleep & Its Wake-up Sources

ESP32 Deep Sleep & Its Wake-up Sources

When your IoT project is powered by a wall adapter,...

ESP32-S3 DevKitC Pinout Reference

ESP32-S3 DevKitC Pinout Reference

The ESP32-S3 DevKitC is a powerful development board designed specifically...

ESP8266 Projects

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Display Values of Multiple DS18B20s on ESP8266 NodeMCU Web Server

Display Values of Multiple DS18B20s on ESP8266 NodeMCU Web Server

Have you ever wanted to have sensors scattered all around...

WeMos D1 Mini Pinout Reference

WeMos D1 Mini Pinout Reference

When it comes to ESP8266 boards, the WeMos D1 Mini...

ESP32 vs. ESP8266: Which Microcontroller Is Right for You?

ESP32 vs. ESP8266: Which Microcontroller Is Right for You?

ESP32 vs. ESP8266. If you have an Internet of Things...

Configuring & Handling ESP8266 GPIO Interrupts In Arduino IDE

Configuring & Handling ESP8266 GPIO Interrupts In Arduino IDE

Often in a project you want the ESP8266 to perform...

Getting Started with ESP8266

Getting Started with ESP8266

In recent years, the Internet of Things (IoT) has become...

ESP8266 Over The Air (OTA) Programming In Arduino IDE

ESP8266 Over The Air (OTA) Programming In Arduino IDE

One of the best things about ESP8266 is that its...

ESP8266 Pinout Reference

ESP8266 Pinout Reference

One of the nice things about the ESP8266 is that...

Create A Simple ESP8266 Weather Station With BME280

Create A Simple ESP8266 Weather Station With BME280

Don’t let the smartphone weather apps or commercial weather stations(that...

How to Use an I2C LCD Display With ESP8266

How to Use an I2C LCD Display With ESP8266

Tired of relying on the Serial Monitor to see what’s...

Interface OLED Graphic Display Module with ESP8266 NodeMCU

Interface OLED Graphic Display Module with ESP8266 NodeMCU

Do you want to spice up your ESP8266 projects with...

Basic Electronics

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PN Junction Diode

PN Junction Diode

A piece of n-type semiconductor or p-type semiconductor is like...

The Half-Wave Rectifier

The Half-Wave Rectifier

Most electronic systems, like TVs, audio systems, and computers, need...

The Zener Diode

The Zener Diode

Ordinary silicon diodes block any current through them when they...

Semiconductor Basics

Semiconductor Basics

To understand how diodes, transistors, or any integrated circuit work,...

The Full-Wave Rectifier

The Full-Wave Rectifier

Although the half wave rectifier is used in some low...

The Full-Wave Bridge Rectifier

The Full-Wave Bridge Rectifier

Another, more popular full-wave rectifier design exists and is built...

Light Emitting Diode (LED)

Light Emitting Diode (LED)

LEDs are everywhere – in our phones, in our cars,...

Electronics Calculators

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Parallel Resistor Calculator

Parallel Resistor Calculator

Use this calculator to quickly determine the total equivalent resistance...

Battery Life Calculator

Battery Life Calculator

This calculator offers two options—simple, and advanced—for estimating how long...

Ohm’s Law Calculator

Ohm’s Law Calculator

Use this calculator to calculate the relationships between current, voltage,...

Voltage Divider Calculator

Voltage Divider Calculator

Use this tool to calculate the output voltage of a...

5-Band Resistor Color Code Calculator

5-Band Resistor Color Code Calculator

Use this calculator to identify the value, and tolerance of...

LED Series Resistor Calculator

LED Series Resistor Calculator

Use this calculator to determine the value of the resistor...

Capacitor Code-Value Converter

Capacitor Code-Value Converter

Use this calculator to quickly convert between the 3-digit codes...

Low Pass Filter Calculator

Low Pass Filter Calculator

This passive low-pass filter calculator allows you to select your...

Series Resistor Calculator

Series Resistor Calculator

Use this calculator to quickly determine the total equivalent resistance...

Op-Amp Gain Calculator

Op-Amp Gain Calculator

Use our Op-Amp Gain Calculator to quickly find the missing...