Guide for MQ-2 Gas/Smoke Sensor with Arduino
This guide shows how to build a smoke detector that beeps when it detects flammable gas or smoke.
Project
ESP8266 Controlled with Android App (MIT App Inventor)
In this project, you’re going to build an Android app using the MIT App Inventor software that allows you to control the ESP8266 GPIOs. First, watch the video demonstration To learn more about …
Security Access using MFRC522 RFID Reader with Arduino
This blog post shows a simple example on how to use the MFRC522 RFID reader. I’ll do a quick overview of the specifications and demonstrate a project example using an Arduino.
Raspberry Pi Web Server using Flask to Control GPIOs
In this project you’ll create a standalone web server with a Raspberry Pi that can toggle two LEDs. You can replace those LEDs with any output (like a relay or a transistor). …
Monitor Your Door Using Magnetic Reed Switch and Arduino
This tutorial demonstrates how to use a magnetic reed switch. I’ll do a quick overview on how it works and show a project example using an Arduino.
ESP8266 Troubleshooting Guide
The ESP8266 has a few common issues, specially when you are trying to flash a new firmware or uploading scripts. Here’s a compilation with some of the most common problems with the ESP8266 and how to fix …
ESP8266 – Wireless Weather Station with Data Logging to Excel
In this project we are going to establish a wireless communication between two ESPs and send data from three sensors to an Excel spreadsheet. This tutorial shows a wireless weather station with data …
Why You Shouldn’t Always Use the Arduino Delay Function
The very first time you used an Arduino board, you probably did something like this: Connected an LED to your Arduino Uploaded the default blink sketch that would turn on and off your LED every …
Arduino Serial Plotter – New Tool
The latest release of the Arduino IDE 1.6.6 comes with a new tool called Serial Plotter. This tools gives you the ability to visualize your data in a plot that is updated in real time.
Sending Data From an Arduino to the ESP8266 via Serial
In this tutorial you’re going to learn how to send data from an Arduino to the ESP8266 via serial communication.
Complete Guide for Nokia 5110 LCD with Arduino
This post aims to be a complete guide for Nokia 5110 LCD with Arduino. I’ll explain what it does, show its specs and share an Arduino project example that you can take …
ESP8266 Remote Controlled Sockets
In this project your’re going to build a web server with an ESP8266 that can control remotely any sockets (safely).
How to Make Two ESP8266 Talk
In this project you’re going to make two ESP8266 talk with each other.
Complete Guide for nRF24L01 – 2.4GHz RF Transceiver Module With Arduino
This post aims to be a complete guide for nRF24L01 – 2.4GHz RF Transceiver module. I’ll explain what it does, show its specs and share an Arduino project example that you …