M5Stack Dial v1.1 - ESP32-S3 Smart Rotary Knob with 1.28" Round Touch Screen
Description Dial v1.1 is a high-performance, multifunctional embedded development board that has been fully upgraded from the original Dial product. The new version features the StampS3A as the main controller, further enhancing system processing power and stability. Additionally, the core module antenna and buttons have been optimized to effectively improve wireless communication performance and user interaction experience. The product is equipped with a 1.28-inch round TFT touch screen and a high-precision rotary encoder, and includes an RFID detection module, RTC circuit, onboard buzzer, and under-screen buttons to enable device interaction and wake-up alerts. The power supply solution supports DC 6～36V wide voltage input and includes a lithium battery interface and charging circuit to meet diverse application needs. Furthermore, 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 touch screen StampS3A as the main controller Rotary encoder RFID detection module Wide voltage input Interface expansion: Reserved PORT.A and PORT.B interfaces Development Platform UiFlow2 Arduino IDE ESP-IDF PlatformIO Includes 1 x Dial V1.1 1 x L-shaped 1.5mm hex wrench (compatible with M2 screws) 1 x 2.54-2P terminal Applications Smart home control IoT projects Access control systems Industrial control Specifications Specification Parameters SoC ESP32-S3 (Xtensa LX7), 8MB Flash, Wi-Fi, OTG, CDC Flash 8MB Wide voltage input range DC 6~36V Screen driver GC9A011.28 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/revolution Buzzer 80dB Battery connector specs 1.25mm-2P Sleep current USB powered: DC 5V@6.84mA (LDO power consumption)Battery only: DC 4V@6uA Operating current USB powered: DC 5V@88.19mABattery only: DC 4V@100mA Operating temperature 0 ~ 40°C Product Size 51.0 x 51.0 x 32.3mm Product weight 46.4g Package dimensions 71.9 x 71.9 x 57.4mm Gross weight 61.0g Product Comparison Comparison Item Dial v1.1 Dial Core Module StampS3A StampS3 Antenna Design Optimized design, stronger signal Standard design StampS3A module Boot button Optimized button feel, buttons use 4.0 x 3.0 x 2.0mm specs Button specs 2.6 x 1.6 x 0.55mm Power Consumption Optimized for lower power consumption Standard design LEARN AND DOCUMENTS DOCUMENTS