M5Stack 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
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
Softwarses
Arduino
Easyloader
ESP-IDF
Schematics
Model Size