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

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Dial v1.1 is a high-performance, multifunctional embedded development board that represents a comprehensive upgrade of the original Dial product. The new version adopts the all-new StampS3A main controller, further enhancing system processing power and stability; at the same time, the core module’s antenna and keys have been optimized, effectively improving wireless communication performance and user experience. The product features a 1.28-inch round TFT touchscreen and a high-precision rotary encoder, and it comes with a built-in RFID detection module, RTC circuit, onboard buzzer, and under-screen buttons, enabling device interaction and alert wake-up functions. Its power supply supports a wide DC input voltage of DC 6~36V and includes a reserved lithium battery interface and charging circuit to meet diverse application requirements. Additionally, the reserved PORT.A and PORT.B interfaces facilitate the expansion of I2C and GPIO devices. This product is widely applicable in smart home control, IoT applications, smart wearables, access control systems, industrial control, and educational maker projects.

Features

  • Round TFT touchscreen
  • StampS3A as the main controller
  • Rotary encoder
  • RFID detection module
  • Wide voltage input
  • Interface expansion: Reserved PORT.A and PORT.B interfaces
  • Programming Platforms

UIFlow 1.0

UIFlow 2.0

Arduino IDE

Includes

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

Applications

  • Smart home control
  • IoT projects
  • Access control systems
  • Industrial control

Specifications

Specification Parameter
SoC ESP32-S3 (Xtensa LX7), 8MB Flash, Wi-Fi, OTG, CDC
Flash 8MB
Wide Voltage Input Range DC 6~36V
Screen Driver GC9A01
1.28 Inch 240 x 240px
Touch Driver FT3267
RFID WS1850S @ tag operating frequency: 13.56 MHz, ISO/IEC 14443 Type A/Type B protocol
Encoder Resolution: 16 positions, 64 pulses/rev
Buzzer 80dB
Battery Socket Specification 1.25mm-2P
Sleep Current USB power: DC-5V@6.84mA (LDO consumption)
Battery only: DC-4V@6uA
Working Current USB power: DC-5V@88.19mA
Battery only: DC-4V@100mA
Working Temperature 0-40°C
Product Size 51.0 x 51.0 x 32.3mm
Packaging Size 163.0 x 120.0 x 59.0mm
Product Weight 46.2g
Gross Weight 61.0g

Difference Between M5Dial and M5Dial V1.1

Comparison Item Dial v1.1
Dial
Core Module StampS3A StampS3
Antenna Design Optimized design, stronger signal Conventional design
Key Specifications Optimized key feel, keys sized at 4.0 x 3.0 x 2.0mm Key size of 2.6 x 1.6 x 0.55mm
Power Consumption Optimized for lower power consumption Conventional design

Dial v1.1 Lithium Battery Expansion Interface

Lithium Battery Holder

Softwarses

Arduino

Easyloader

Easyloader Download Link Remarks
Dial v1.1 User Demo Easyloader Download /
Dial v1.1 Knob Panel Demo Easyloader Download /

ESP-IDF

Schematics

Model Size

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