Raspberry Pi: PWM Outputs with Python (Fading LED)
In this guide, you’ll learn how to generate PWM signals on the Raspberry Pi GPIOs. As an example, we’ll show you how to dim the brightness of an LED by …
Sara Santos
ESP8266 NodeMCU: Send Pushover Notifications (Arduino IDE)
In this guide, you’ll learn how to send ESP8266 notifications to Pushover. Pushover is a notification service that integrates with many applications. You can send push notifications to all of …
ESP32: Send Pushover Notifications (Arduino IDE)
In this guide, you’ll learn how to send ESP32 notifications to Pushover. Pushover is a notification service that integrates with many applications. You can send push notifications to all of …
Control Raspberry Pi Digital Outputs with Python (LED)
In this guide, you’ll learn how to set the Raspberry Pi GPIOs as digital outputs and control them using a Python program. As an example, we’ll show you how to …
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. …
ESP32 Time-Based Events using Node-RED and Big Timer
In this tutorial, you’ll learn how to control the ESP32 outputs using time-based events. For that, we’ll set up an automation system on Node-RED with the Big Timer node. This …
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 …
ESP32-CAM Take Photo and Save to MicroSD Card with Date and Time (timestamp)
In this tutorial, you’ll learn to take a picture with the ESP32-CAM and save it to the microSD card. We’ll include the current date and time on the filename. Including …
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 …
ESP32: Erase Flash Memory (Factory Reset)
This is a quick guide showing how to erase the ESP32 flash memory to restore it to its original state. This might be useful if you want to delete any …
Getting Started with the Freenove ESP32-Wrover CAM Board
This is a quick getting started guide for the Freenove ESP32-Wrover CAM board. This board features an OV2640 camera, several GPIOs to connect peripherals, and a built-in programmer with a …