Tutorials

This post shows how to remove strikethrough on completed tasks in Obsidian.

This tutorial explains how to build an IoT application to control a light switch remotely using the ESP32 microcontroller, Wi-Fi, and a relay module.

This article details how to utilize ESP32's PWM feature to manage LED brightness, covering components, code, and testing.

Hardware INMP441  SCK -> GPIO 14 (I2S Clock) WS -> GPIO 15 (I2S Word Select) SD -> GPIO 32 (I2S Data) ESP32 GND -> INMP441 GND ESP32 VIN (3...

This article covers the ESP32 DEVKIT V1 pin reference, highlighting GPIO functions. The board has 30 pins and 25 GPIOs for various tasks, including ADC and DAC. Safety for each pin is discussed, aiding project development.

This article discusses creating a touch-sensitive button using the ESP32's internal capacitive touch sensors. It details the GPIO pins associated with the sensors and explains how to read touch inputs using Arduino syntax.

To output data from an ESP32 using serial communication, you can use the ArduinoJson library to encode the data into a JSON string. The following is an example code to output an integer value from th...

MultiButton a powerful and easy-to-use key driver module. It explains its core advantages, usage steps, data structure, supported events, and provides example code.

Usage of ESP32 to control the human body infrared module, covering its components, control principle, applications, circuit connection, and code.

Hardware connection On the ESP32 microcontroller, there are several pairs of GPIO pins that can be used for I2C communication. The default I2C pins on the ESP32 are GPIO 21 (SDA) and GPIO 22 (SCL),...

This tutorial discusses using ESP32 with ChatGPT for voice input and feedback. It covers required hardware, code development, and integration methods.

This article focuses on the ESP32 board's PWM capabilities, detailing key terms like TON, TOFF, period, and duty cycle, essential for understanding PWM applications and implementation.