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In this project you’ll install an SQLite package for Node-RED and learn how to write simple SQL queries to interact with your SQLite database. Recommended resources: You need a Raspberry Pi board – read Best Raspberry Pi Starter Kits Getting Started with Node-RED on Raspberry Pi SQLite Database on a Raspberry Pi How to install phpLiteAdmin Database inContinue reading “SQLite with Node-RED and Raspberry Pi”

In this project you’ll create a standalone web server with a Raspberry Pi that displays temperature and humidity readings with a DHT22 sensor. You can also control two outputs from an ESP8266 using MQTT protocol. In order to create the web server you will be using a Python microframework called Flask. Here’s the high levelContinue reading “ESP8266 Publishing DHT22 Readings with MQTT to Raspberry Pi”

The ESP32 comes with Wi-Fi, Bluetooth Low Energy and Bluetooth Classic. In this tutorial, you’ll learn how to use ESP32 Bluetooth Classic with Arduino IDE to exchange data between an ESP32 and an Android smartphone. We’ll control an ESP32 output, and send sensor readings to an Android smartphone using Bluetooth Classic. Note: this project is only compatible withContinue reading “ESP32 Bluetooth Classic with Arduino IDE – Getting Started”

This guide shows you how to use the BMP180 barometric sensor with the ESP32 to read pressure, temperature and estimate altitude. We’ll show you how to wire the sensor to the ESP32, install the needed library, and how to write the sketch in the Arduino IDE. Introducing the BMP180 Barometric Sensor The BMP180 is aContinue reading “ESP32 with BMP180 Barometric Sensor – Guide”

In this project you’ll learn how to turn a Raspberry Pi Zero board into a USB keyboard or HID (Human Interface Device). After following some simple steps, you can write a Python script to make your Pi act as a USB keyboard. Prerequisites: You need a Raspberry Pi Zero board You should be familiar with theContinue reading “Turn Your Raspberry Pi Zero into a USB Keyboard (HID)”

Do you want to turn your Raspberry Pi into a surveillance camera system? The best way to do it is using MotionEyeOS. In this post we’ll show you how to get started with MotionEyeOS on your Raspberry Pi. What is MotionEyeOS? MotionEyeOS is a Linux distribution that turns your single-board computer into a video serveillance system.Continue reading “Install MotionEyeOS on Raspberry Pi – Surveillance Camera System”

In this project you’ll build an ESP32 or ESP8266 client that makes an HTTP POST request to a Raspberry Pi LAMP server (Linux, Apache, MySQL, PHP). The Raspberry Pi has a PHP script to insert data (sensor readings) into a MySQL database. You’ll also have a web page that displays the sensor readings, timestamps and other information stored in the database. YouContinue reading “ESP32/ESP8266 Publish Data to Raspberry Pi LAMP Server”