Build powerful ESP32 projects using one of the most versatile microcontrollers available. Learn how to connect sensors, displays, GPS modules, cameras, relays, and cloud services while mastering wireless communication and embedded programming.
We all know the basic voltmeter, ammeter, and wattmeter—the three essential devices for measuring values in any electronic project or circuit. Measuring voltage and current with a multimeter is a great method, but one of the biggest challenges I face when testing circuits is measuring power supply efficiency. Therefore, today we’ll address this by building …
Undoubtedly, the ESP32 is a strong competitor to many WiFi/MCU SoCs, offering a clear advantage in performance and price. However, depending on its intended use, the ESP32 can be a power-intensive device. When your IoT projects are powered by household AC power, you won’t be too concerned about power consumption. However, if you’re using batteries …
ESP32’s sleep modes and their corresponding power consumption Read More »
Communication ESP32-Wi-Fi router In this article, we’ll establish an HTTP connection between two ESP32 development boards to share data via Wi-Fi without using a wireless router. By eliminating the need for a router, you can set up this system for projects requiring lightweight and portable operation, especially when used outdoors. No more worrying about carrying …
Audio transmission and reception using ESP32 and MAX98357A The I2S protocol, short for Inter-IC Sound , is primarily used for transmitting or receiving audio data in a synchronous serial port between two devices. Many digital devices require audio communication, such as adding a microphone or speaker output to play audio. There are several audio protocols available for …
Audio transmission and reception using ESP32 and MAX98357A Read More »
Connecting UDA1334A I2S stereo decoder module to ESP32 In smart home devices such as smart speakers and smart audio systems, Hi-Fi level is often used to describe their audio performance. These devices typically feature high-quality audio decoders, audio amplifiers, and high-fidelity audio components, providing a more realistic, clear, and detailed music performance, resulting in a …
Connecting UDA1334A I2S stereo decoder module to ESP32 Read More »
How to debug ESP32-C3 using JTAG This article introduces how to create a basic project for the RISC-V-based ESP32-C3 device and how to debug it using JTAG. We will demonstrate all the necessary wiring on the ESP32-C3-DevKitM development board, as well as the steps required to configure the software. The ESP32-C3 chip includes its own …
This article will primarily introduce how to install and run MicroPython on the ESP32-C3 Super Mini development board using Espressif’s esptool. The ultimate goal is to run MicroPython code on the ESP32-C3 Super Mini development board. Next, this article will demonstrate how to implement a simple non-blocking LED blinking code. That is, without using the …
ESPectre is an experimental motion detection system based on Wi-Fi spectrum analysis (CSI — Channel State Information). In simple terms, a small ESP32-S3-based device “listens” to how the Wi-Fi channel changes between the router and the sensor: when someone moves in a room, the radio channel’s parameters change, and the project is able to capture …
A Motion Detection System Based on Wi-Fi Spectral Analysis (CSI) Read More »
The ESP32-CAM is a device equipped with a built-in camera and Wi-Fi support. However, this module has a limited number of I/O pins. Some of them are shared with the SD card, which makes them unavailable when the card is in use. This can complicate project development. It’s recommended to carefully study the ESP32-CAM pinout. …
Introduction OpenThermal, also known as IRCam, is an open-source project for a compact thermal imaging camera built around the MLX90640 infrared sensor and the ESP32-C3 microcontroller. The device creates its own Wi-Fi access point, after which the thermal image can be viewed directly in a smartphone or computer browser. No additional screen, separate app, or …
DIY Thermal Imaging Camera Based on ESP32-C3 and MLX90640 Read More »
