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Getting Started with ESP8266 WiFi Transceiver (Review)

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The ESP8266 is a Wi-Fi module great for IoT and Home Automation projects. This article is a getting started guide for the ESP8266 development board. 

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Complete Guide for Ultrasonic Sensor HC-SR04 with Arduino

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This post is all about the Ultrasonic Sensor HC – SR04. I’ll explain how it works, show you some features and share an Arduino Project example you can follow to integrate in your projects. We provide a schematic diagram on how to wire the ultrasonic sensor, and an example sketch to use with the Arduino.

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TEVO Michelangelo Desktop 3D Printer Review

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In this post I’m going to review the TEVO Michelangelo 3D printer. The TEVO Michelangelo is a small desktop 3D printer that comes fully assembled. All you have to do is get it out of the box, apply power and start printing! I’m really impressed with the quality of this 3D printer and how easy […]

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ESP32 with LoRa using Arduino IDE – Getting Started

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In this tutorial we’ll explore the basic principles of LoRa, and how it can be used with the ESP32 for IoT projects using the Arduino IDE. To get you started, we’ll also show you how to create a simple LoRa Sender and LoRa Receiver with the RFM95 transceiver module.

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Getting Started with ESP32 Bluetooth Low Energy (BLE) on Arduino IDE

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The ESP32 comes not only with Wi-Fi but also with Bluetooth and Bluetooth Low Energy (BLE). This post is a quick introduction to BLE with the ESP32. First, we’ll explore what’s BLE and what it can be used for, and then we’ll take a look at some examples with the ESP32 using Arduino IDE. For […]

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ESP32 Data Logging Temperature to MicroSD Card

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This project shows how to log data with timestamps to a microSD card using the ESP32. As an example, we’ll log temperature readings from the DS18B20 sensor every 10 minutes. The ESP32 will be in deep sleep mode between each reading, and it will request the date and time using Network Time Protocol (NTP).

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ESP32 MQTT – Publish and Subscribe with Arduino IDE

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This project shows how to use MQTT communication protocol with the ESP32 to publish messages and subscribe to topics. As an example, we’ll publish BME280 sensor readings to the Node-RED Dashboard, and control an ESP32 output. The ESP32 we’ll be programmed using Arduino IDE.

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Arduino – Control LEDs with IR Remote Control

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In this project you’ll use an infrared (IR) receiver and an Arduino to control 3 LEDs with a remote control. This is useful to re-use old remote controls or give some functionally to some of your remote’s buttons.

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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.

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JYETech DSO150 Digital Oscilloscope Review

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In this post we’re going to to take a look and review the JYETech DSO150 digital oscilloscope. An oscilloscope is an essential tool in electronics but its price may be demotivating for electronics hobbyists. A cheap regular bench oscilloscope costs at least $300.

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20 Easy Raspberry Pi Projects Book

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20 Easy Raspberry Pi Projects book is a beginner-friendly collection of electronics projects using the Raspberry Pi. The Raspberry Pi is a tiny and affordable computer, for beginners looking to make cool things right away. Projects are explained with full-color visuals and simple step-by-step instructions.

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