M5Stack Dial v1.1 is a compact ESP32-S3 smart rotary knob controller with a 1.28-inch round touch screen, rotary encoder, RFID reader, and wide power input support. Based on official M5Stack documentation, the Dial v1.1 is designed for smart home control, IoT interfaces, access systems, and industrial control. For this product, the strongest optimization direction is Home Assistant control panels and smart home rotary interfaces, because the combination of touch, encoder input, screen UI, Wi-Fi, and compact wall-or-desktop form makes it especially suitable for local dashboards and scene control. Official M5Stack materials also show a dedicated Smart Home GUI demo, wide DC 6-36V input support, battery interface, and expandable PORT.A / PORT.B connectivity. That makes the M5-K130-V11 a strong fit not only for Home Assistant dashboards, but also for room control panels, rotary media controllers, access control terminals, and custom HMI projects built with UiFlow2, Arduino, ESP-IDF, or PlatformIO. Features ESP32-S3 based smart rotary controller using the upgraded StampS3A core module 1.28-inch 240 x 240 round touch display for compact HMI and dashboard interfaces Rotary encoder + touch interaction for volume control, scene switching, menu navigation, and parameter adjustment Built-in RFID reader based on WS1850S with 13.56MHz and ISO/IEC 14443 Type A / Type B support Wide DC 6-36V input plus battery connector for embedded control and smart home deployments PORT.A and PORT.B expansion for I2C and GPIO peripheral integration Strong Home Assistant potential as a rotary smart home panel, room controller, and dashboard terminal Multiple development paths through UiFlow2, Arduino IDE, ESP-IDF, and PlatformIO Specifications Parameter Details Brand M5Stack Model Dial v1.1 SoC ESP32-S3 (Xtensa LX7), 8MB Flash, Wi-Fi, OTG, CDC Flash 8MB Display GC9A01, 1.28 inch, 240 x 240px Touch Driver FT3267 RFID WS1850S, 13.56 MHz, ISO/IEC 14443 Type A / Type B Encoder 16 positions, 64 pulses per revolution Buzzer 80dB Wide Voltage Input DC 6-36V Battery Socket 1.25mm-2P Sleep Current USB power: DC [email protected], battery only: DC 4V@6uA Working Current USB power: DC [email protected], battery only: DC 4V@100mA Working Temperature 0-40C Product Size 51.0 x 51.0 x 32.3mm Product Weight 46.2g Applications Home Assistant wall panel or desktop control dial for scenes, lights, climate, and room status display Smart home control interfaces using touch plus rotary input for intuitive local interaction Access control and RFID interaction for card-based triggering, identification, or check-in systems IoT control terminals with Wi-Fi connectivity and external sensor or actuator expansion Industrial HMI and rotary UI projects where compact display and physical interaction are both required Media, audio, and parameter controllers for volume, mode, brightness, or custom device control Packing List Dial v1.1 x1 L-shaped 1.5mm hex key x1 2.54-2P terminal x1 Other Content The biggest practical advantage of the M5Stack Dial v1.1 is that it combines several interface methods in one very small device: touch display, rotary encoder, RFID, buzzer, and wireless connectivity. This makes it more useful than a simple screen module or plain encoder board when building local smart home controls, especially for Home Assistant style dashboards and scene selectors. M5Stack also provides official software paths that make the device easier to deploy. The official UiFlow2 environment is suitable for rapid prototyping, while the Arduino library, ESP-IDF board support, and Smart Home GUI demo are better suited for deeper customization. This means the Dial v1.1 works both as a ready-to-demo smart home controller and as a serious embedded HMI development platform. Resources M5Dial v1.1 Official Documentation UiFlow2 Dial v1.1 Arduino Library Espressif BSP for M5Dial Dial v1.1 User Demo Dial v1.1 Smart Home GUI Demo Dial v1.1 Schematics PDF WS1850S RFID Datasheet Home Assistant Official Website FAQ Is the M5Stack Dial v1.1 suitable for Home Assistant projects? Yes. Based on its official hardware design and M5Stack's smart home positioning, the Dial v1.1 is well suited to Home Assistant control panels, rotary dashboards, and local smart home interfaces. What makes this version different from the earlier Dial? Official M5Stack documentation highlights the upgraded StampS3A core, optimized antenna design, improved key feel, and lower power optimization in Dial v1.1. Can the device read RFID cards? Yes. The board includes a WS1850S RFID module supporting 13.56MHz and ISO/IEC 14443 Type A / Type B protocols. What is included in the package? The official package includes Dial v1.1, an L-shaped 1.5mm hex key, and a 2.54-2P terminal.
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