Dial v1.1

SKU:K130-V11

Description

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.

Tutorial

Arduino IDE

This tutorial will introduce how to program and control the Dial v1.1 device using the Arduino IDE.

UIFlow 2.0

This tutorial will introduce how to control the Dial v1.1 device using the UIFlow 2.0 graphical programming platform.

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
- Arduino
- UIFlow 2.0
- ESP-IDF

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

Learn

Power On/Off

Power On: When there is no USB external power (battery only), the device can be awakened by pressing the “WAKE” button or by an IRQ signal triggered by RTC timing. After wake-up, you must set the HOLD(GPIO46) pin to a high level (1) during program initialization to maintain power, otherwise the device will re-enter sleep mode.
Power Off: Similarly, when there is no USB external power (battery only), you can press the RST button to power off directly, or set the HOLD(GPIO46) pin to a low level (0) in the program to cut off power.

Download Mode

To enter download mode, please press and hold the G0 button on the StampS3A before powering on, and release after power is applied.
schematics

Dial v1.1 Lithium Battery Expansion Interface

Schematics

Dial v1.1 Schematics PDF

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Pinmap

PORT.A (Red)

StampS3A	G15	G13	5V	GND
M5Dial(PORT.A)	SCL	SDA	VCC	GND

PORT.B (Black)

StampS3A	G1	G2	5V	GND
M5Dial(PORT.B)	IN	OUT	VCC	GND

I2C Sensor (RTC8563 & WS1850S)

StampS3A	G12	G11	G8	G10	G3
RTC8563	SCL	SDA
WS1850S (RFID)	SCL	SDA	RST	IRQ
Buzzer					beep

ENCODER

StampS3A	G40	G41	VCC	GND
ENCODER	B	A	5V	GND

Screen Driver (GC9A01-SPI) & Touch Driver

StampS3A	G4	G5	G6	G7	G8	G9	G11	G12	G14
GC9A01	LCD_RS	LCD_MOSI	LCD_SCK	LCD_CS	LCD_RESET	LCD_BL
FT3267							TP_SDA	TP_SCL	TP_INT

Model Size

Datasheets

Softwarses

Arduino

Dial v1.1 Arduino Library

Easyloader

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

ESP-IDF

Video

Dial v1.1 Introductory Video

Dial v1.1 Product Introduction and Case Demonstration

Product Comparison

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