MicroPython: Relay Module with ESP32/ESP8266 (Guide + Web Server)
Using a relay with the ESP32 or ESP8266 is a great way to control AC household appliances remotely. This tutorial explains how to control a relay module with the ESP32 …
ESP32
ESP32 Relay Module – Control AC Appliances (Web Server)
Using a relay with the ESP32 is a great way to control AC household appliances remotely. This tutorial explains how to control a relay module with the ESP32. We’ll take …
ESP32-CAM Take Photo and Save to MicroSD Card
Learn how to take photos with the ESP32-CAM board and save them to a microSD card using Arduino IDE. When you press the ESP32-CAM RESET button, it wakes up, takes …
ESP32-CAM Video Streaming Web Server (works with Home Assistant)
In this project we’re going to build an IP surveillance camera with the ESP32-CAM board. The ESP32 camera is going to host a video streaming web server that you can …
ESP32-CAM Video Streaming and Face Recognition with Arduino IDE
This article is a quick getting started guide for the ESP32-CAM board. We’ll show you how to setup a video streaming web server with face recognition and detection in less …
MicroPython: Wi-Fi Manager with ESP32 (ESP8266 compatible)
In this tutorial we’ll show you how to use Wi-Fi Manager with the ESP32 using MicroPython firmware. Wi-Fi Manager allows you to connect your ESP32 to different Access Points (different …
ESP32 LoRa Sensor Monitoring with Web Server (Long Range Communication)
In this project, you’ll build a sensor monitoring system using a TTGO LoRa32 SX1276 OLED board that sends temperature, humidity and pressure readings via LoRa radio to an ESP32 LoRa …
ESP32-CAM Take Photo and Display in Web Server
Learn how to build a web server with the ESP32-CAM board that allows you to send a command to take a photo and visualize the latest captured photo in your …
TTGO LoRa32 SX1276 OLED Board: Getting Started with Arduino IDE
The TTGO LoRa32 SX1276 OLED is an ESP32 development board with a built-in LoRa chip and an SSD1306 0.96 inch OLED display. In this guide, we’ll show you how to: …
EXTREME POWER SAVING (0µA) with Microcontroller External Wake Up: Latching Power Circuit
In this tutorial, we’ll show you how to build an Auto Power Off circuit (Latching Power Circuit) on a custom PCB, which is extremely useful to save power in your …
ESP32 I2C Communication: Set Pins, Multiple Bus Interfaces and Peripherals (Arduino IDE)
The ESP32 has two I2C bus interfaces that can serve as I2C master or slave. In this tutorial we’ll take a look at the I2C communication protocol with the ESP32 …
ESP32 Pinout Reference: Which GPIO pins should you use?
The ESP32 chip comes with 48 pins with multiple functions. Not all pins are exposed in all ESP32 development boards, and there are some pins that cannot be used.
ESP32 SIM800L: Send Text Messages (SMS Alert) with Sensor Readings
In this project we’re going to create an SMS notification system with the T-Call ESP32 SIM800L module that sends an SMS when sensor readings are above or below a certain …
ESP32 Publish Data to Cloud without Wi-Fi (TTGO T-Call ESP32 SIM800L)
This project shows how to connect the TTGO T-Call ESP32 SIM800L board to the Internet using a SIM card data plan and publish data to the cloud without using Wi-Fi. …