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 Stamp-S3A 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 applicable in smart home control, IoT applications, smart wearables, access control systems, industrial control, and educational maker projects.

Features

• Round TFT touch screen
• Stamp-S3A 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

Specifications

Specification	Parameter
SoC	ESP32-S3FN8@Dual-core Xtensa LX7, 240MHz
USB	USB OTG, USB Serial/JTAG
Flash	8MB
Wi-Fi	2.4 GHz Wi-Fi
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 supply: DC 5V@6.84mA (LDO idle power consumption) Battery only: DC 4V@6uA
Operating Current	USB supply: DC 5V@88.19mA Battery only: DC 4V@100mA
Power Interface Specification	Model KF2EDGV-2.54-2P, straight pin design, 2.54mm pitch (2Pin), green
Operating Temperature	0 ~ 40°C
Product Size	51.0 x 51.0 x 32.3mm
Product Weight	46.2g
Package Size	71.9 x 71.9 x 57.4mm
Gross Weight	61.0g

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