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Arduino Time Attendance System with RFID

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In this project you’re going to build a time attendance system with MFRC522 RFID Reader and Arduino. When you swipe an RFID tag next to the RFID reader, it saves the user UID and time in an SD card. It also shows if you are late or in time accordingly to a preset hour and […]

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ESP32 with DC Motor and L298N Motor Driver – Control Speed and Direction

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This tutorial shows how to control the direction and speed of a DC motor using an ESP32 and the L298N Motor Driver. First, we’ll take a quick look on how the L298N motor driver works. Then, we’ll show you an example on how to control the speed and direction of a DC motor using the ESP32 […]

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Request Sensor Data via SMS using Arduino and SIM900 GSM Shield

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In this project we’re going to show you how to request sensor data via SMS with the Arduino. As an example we’re going to request the temperature and humidity from a DHT11 sensor. To send and receive SMS with the Arduino we’re going to use the SIM900 GSM shield. When you send an SMS to the Arduino […]

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ESP32 Servo Motor Web Server with Arduino IDE

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In this tutorial we’re going to show you how to build a web server with the ESP32 that controls the shaft’s position of a servo motor using a slider. First, we’ll take a quick look on how to control a servo with the ESP32, and then we’ll build the web server. 20 Easy Raspberry Pi […]

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Car Plate Recognition System with Raspberry Pi and Node-RED

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In this project you’re going to learn how to build a car recognition system using a Raspberry Pi and Node-RED. For this project we’ll be using a software called OpenALPR (Automatic License Place Recognition) that has an API you can use to identify car plates and car models based on an image. 20 Easy Raspberry […]

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ESP32 Publish Sensor Readings to Google Sheets (ESP8266 Compatible)

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In this tutorial we’re going to show you how to publish sensor readings to Google Sheets using ESP32 or ESP8266 board. As an example, we’ll publish temperature, humidity, and pressure readings using the BME280 sensor to a Google Sheets spreadsheet every 30 minutes – we’ll be using IFTTT. 20 Easy Raspberry Pi Projects Our new […]

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Control Sonoff Basic Switch with ESP Easy Firmware and Node-RED

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In this project you’ll learn how to use the ESP Easy firmware on a Sonoff basic smart switch and control it with Node-RED using Node-RED dashboard. The Node-RED software is running on a Raspberry Pi. The ESP Easy firmware can also be integrated with other home automation platforms like Home Assistant, Domoticz, openHAB, etc… 20 […]

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Reprogram Sonoff Smart Switch with Web Server

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In this post, you’re going to learn how to flash custom firmware in the Sonoff device, so that you can control it with your own web server. I recommend that you read my previous post to get familiar with the Sonoff. We also have additional resources that describe how to flash a custom firmware to the […]

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Alexa (Echo) with ESP32 and ESP8266 – Voice Controlled Relay

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In this project, you’re going to learn how to control the ESP8266 or the ESP32 with voice commands using Alexa (Amazon Echo Dot). As an example, we’ll control two 12V lamps connected to a relay module. We’ll also add two 433 MHz RF wall panel switches to physically control the lamps.  20 Easy Raspberry Pi […]

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WiFiManager with ESP8266 – Autoconnect, Custom Parameter and Manage your SSID and Password

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In this guide you’ll learn how to use WiFiManager with the ESP8266 board. WiFiManager allows you to connect your ESP8266 to different Access Points (AP) without having to hard-code and upload new code to your board. Additionally, you can also add custom parameters (variables) and manage multiple SSID connections with the WiFiManager library. 20 Easy […]

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Build an ESP8266 Web Server – Code and Schematics

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This tutorial is a step-by-step guide that shows you how to build a standalone ESP8266 Web Server that controls two outputs (two LEDs). This ESP8266 Web Server is mobile responsive and it can be accessed with any device that as a browser in your local network. 20 Easy Raspberry Pi Projects Our new book is a […]

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ESP8266 Daily Task – Publish Temperature Readings to ThingSpeak

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In this project you’re going to learn how to build a sensor node with an ESP8266 that publishes the temperature and humidity once a day to a free service called Thing Speak. 20 Easy Raspberry Pi Projects Our new book is a beginner-friendly collection of electronics projects, perfectly suited for hobbyists, parents, kids, parents, and […]

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Build an All-in-One ESP32 Weather Station Shield

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In this project I’ll show you how you can build an all-in-one ESP32 weather station shield and display the sensor readings on a web server. The web server displays data from all the sensors and automatically updates the readings every ten seconds, without the need to refresh the web page. 20 Easy Raspberry Pi Projects […]

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ESP8266 Web Server with Arduino IDE

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In this project you’ll create a standalone web server with an ESP8266 that can toggle two LEDs using Arduino IDE. This ESP8266 Web Server is mobile responsive and it can be accessed with any device that as a browser in your local network. 20 Easy Raspberry Pi Projects Our new book is a beginner-friendly collection of […]

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