30+ Raspberry Pi Projects, Tutorials and Guides
30+ Raspberry Pi Projects, Tutorials and Guides The Raspberry Pi is a small computer board about the size of a credit card. It was developed in the United Kingdom by …
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Raspberry Pi Pinout Guide: How to use the Raspberry Pi GPIOs?
The Raspberry Pi 4 Model B and most recent versions of the Raspberry Pi have a double row of 40 GPIOs (General Purpose Input/Output Pins) that allow you to connect …
Real-time Data Storage with Firebase and Node-RED
In this tutorial, we will show you how to use Firebase with Node-RED to store data in the realtime database (RTDB). We’ll show you examples to SET, PUSH, UPDATE, and …
ESP8266 Time-Based Events using Node-RED and Big Timer
In this tutorial, you’ll learn how to control the ESP8266 NodeMCU outputs using time-based events. For that, we’ll set up an automation system on Node-RED with the Big Timer node. …
Node-RED with Big Timer Node: Create Complex Automation Schedules Easily
In this guide, we’ll show you how you can create complex automation schedules easily using Node-RED and the Big Timer node. The Big Timer node provides a huge range of …
Monitoring Your Raspberry Pi System using InfluxDB Telegraf
This guide will show you how to monitor your Raspberry Pi system using InfluxDB Telegraf. You can collect metrics from the Raspberry Pi board (CPU usage, memory usage, disk usage, …
ESP8266 NodeMCU: Erase Flash Memory (Factory Reset)
This quick guide provides instructions on how to erase the ESP8266 NodeMCU flash memory to restore it to its original state. We’ll be using a tool called esptool.py. Restoring the …
Run Your Cloud MQTT Mosquitto Broker (access from anywhere using Digital Ocean)
Learn how to install Mosquitto Broker for MQTT communication on a Linux Ubuntu VM (Virtual Machine) using Digital Ocean. Running an MQTT Mosquitto Broker in the cloud allows you to …
Programming Raspberry Pi Remotely using VS Code (Remote-SSH)
In this tutorial, we’ll show you a practical way to create and execute files remotely on your Raspberry Pi using VS Code on your computer. All you have to do …
ESP8266 NodeMCU HTTPS Requests (Arduino IDE)
In this guide, you’ll learn how to make HTTPS requests with the ESP8266 NodeMCU board. We’ll introduce you to some HTTPS fundamental concepts and provide several examples: HTTPS requests without …
Year in Review 2022 – Random Nerd Tutorials
The new year is just around the corner. This means it’s time for a Year in Review. We’ll share with you a summary of what happened throughout 2022 on the …
Node-RED: Send Email Notifications
This quick guide shows how to easily send emails with Node-RED. This can be a useful feature to incorporate into your home automation system for many applications. For example, to …
Node-RED: Send Messages to WhatsApp
Learn how to send messages to your WhatsApp account with Node-RED. This can be a great addition to your Node-RED automation system. For example, to send notifications with sensor readings, …
ESP8266 NodeMCU: Send Messages to WhatsApp
In this guide, you’ll learn how to send messages to your WhatsApp account with the ESP8266 NodeMCU board. This can be useful to receive notifications from the ESP8266 with sensor …