M5Stack ESP32-S3 Smart Rotary Knob w/ 1.28-inch Round Touch Screen

• M5Stack Dial ESP32-S3 Smart Rotary Knob w/ 1.28-inch Round Touch Screen
• Equipped with a rotary encoder, RFID detection, and RTC circuit
• Features a high-performing, low-power-consuming ESP32-S3 chip
• Offers versatile power supply options and easy integration into smart home devices
• Includes two PORTA and PORTB interfaces for expansion of I2C and GPIO devices

The M5Stack Dial ESP32-S3 Smart Rotary Knob w/ 1.28-inch Round Touch Screen is a versatile embedded development board that integrates essential features and sensors for a variety of smart home control applications. It is equipped with a 1.28-inch round TFT touchscreen, a rotary encoder, an RFID detection module, an RTC circuit, a buzzer, and under-screen buttons, all of which facilitate the implementation of a wide array of creative projects.

The primary controller of the M5Dial is the M5StampS3, a micro module that utilizes the high-performing, low-power-consuming ESP32-S3 chip. This chip supports Wi-Fi and various peripheral interfaces such as SPI, I2C, UART, and ADC, among others. The M5StampS3 also boasts 8MB of built-in Flash, offering ample storage space.

The M5Dial's distinguishing feature is its rotary encoder, which precisely records the position and direction of the knob, thereby enhancing the interactive experience. This feature allows for the adjustment of settings such as volume, brightness, and menu options, as well as the control of home applications like lights, air conditioning, and curtains. The built-in display screen of the device can display different interaction colors and effects.

Despite its compact size and lightweight design, the M5Dial is suitable for a variety of embedded applications. It can be easily integrated into smart home devices for control purposes or into systems for monitoring and controlling industrial automation, providing intelligent control and interaction capabilities.

The M5Dial also includes RFID detection, which recognizes RFID cards and tags operating at 13.56MHz. This function can be utilized for applications such as access control, identity verification, and payments. The M5Dial is also equipped with an RTC circuit to maintain accurate time and date, an onboard buzzer, and a physical button for device sound prompts and wake-up operations.

The M5Dial offers versatile power supply options to cater to various needs. It can accept a wide range of input voltages, from 6-36V DC input, and features a battery port with a built-in charging circuit for seamless connection to external Lithium batteries. This adaptability allows the M5Dial to be powered via USB-C, the DC interface, or an external battery for on-the-go convenience.

The M5Dial also reserves two PORTA and PORTB interfaces, supporting the expansion of I2C and GPIO devices. These interfaces can connect various sensors, actuators, displays, and other peripherals, adding more functionality and possibilities.