M5Stack Dial v1.1 - ESP32-S3 Smart Rotary Knob with 1.28" Round Touch Screen

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ESP32-S3 Smart Rotary Controller With 1.28-Inch Touch Display, RFID And Wide-Voltage Input

The M5Stack K130-V11 Dial v1.1 is a multifunctional ESP32-S3 smart rotary knob designed for smart-home control, IoT interfaces, access-control systems, industrial equipment, and embedded-development projects. It uses the Stamp-S3A core module based on the ESP32-S3FN8, providing a 32-bit dual-core Xtensa LX7 processor operating at up to 240 MHz, 512 KB SRAM, and 8 MB flash memory. Integrated 2.4 GHz Wi-Fi and Bluetooth 5 LE provide wireless connectivity for connected-control and monitoring applications.

Dial v1.1 combines a 1.28-inch 240 x 240 round TFT touch screen with a high-precision rotary encoder for intuitive menu navigation, parameter adjustment, and user input. It also integrates a 13.56 MHz RFID reader, RTC circuit, 80 dB buzzer, and under-screen button. The power system accepts a wide 6 V to 36 V DC input and includes a lithium-battery connector with charging support. PORT. A and PORT.B provide convenient expansion for I2C, GPIO, sensors, and external peripherals, making the unit well-suited for compact human-machine interfaces and stand-alone smart controllers.

Key Features

• ESP32-S3 Controller: Stamp-S3A module uses the ESP32-S3FN8 32-bit dual-core Xtensa LX7 processor operating at up to 240 MHz
• Memory Resources: Provides 512 KB internal SRAM and 8 MB flash memory
• Wireless Connectivity: Supports 2.4 GHz IEEE 802.11 b/g/n Wi-Fi and Bluetooth 5 LE
• Round Touch Display: Integrated 1.28-inch TFT screen provides 240 x 240 pixel resolution
• Touch Controller: FT3267 touch controller enables direct on-screen interaction
• Rotary Encoder: 16-position encoder with 64 pulses/rev supports accurate menu and parameter control
• RFID Detection: WS1850S reader operates at 13.56 MHz and supports ISO/IEC 14443 Type A and Type B protocols
• RTC Circuit: Integrated real-time clock supports time-based control and wake-up functions
• Audible Feedback: Onboard 80 dB buzzer provides alerts and user-interface feedback
• Wide-Voltage Input: Supports 6 V to 36 V DC input for flexible embedded and industrial installations
• Battery Support: Includes a 1.25 mm 2P lithium-battery connector and charging circuit
• Expansion Interfaces: PORT. A and PORT.B allow connection of compatible I2C, GPIO, sensor, and peripheral devices
• USB Connectivity: Supports USB OTG and USB Serial/JTAG functions
• Optimised Antenna Design: Stamp-S3A incorporates an improved 2.4 GHz antenna design for wireless applications
• Development Support: Compatible with UIFlow2, Arduino IDE, ESP-IDF, and PlatformIO

Applications

• Smart-home control panels
• IoT controllers
• Access-control systems
• Industrial-control interfaces
• Human-machine interfaces
• Rotary menu controllers
• RFID identification systems
• Smart-building controls
• Wireless automation systems
• Equipment parameter adjustment
• Interactive embedded devices
• Smart wearables
• Educational maker projects
• Prototype user-interface development

Model Size

Package Includes:

• 1 x Dial V1.1
• 1 x L-shaped 1.5mm hex wrench (compatible with M2 screws)
• 1 x 2.54-2P terminal