ESP32-S3 1.85-inch Touch Knob Development Board, LED Light Strip, Volume Control, Built-in Speaker

The Waveshare ESP32-S3 1.85-inch Knob Display is a compact, high-performance Human-Machine Interface (HMI) development kit built around a robust CNC precision-machined metal housing.

Core Hardware Specs

• Processor: Powered by a dual-core Xtensa 32-bit LX7 microcontroller (ESP32-S3) running up to 240 MHz.
• Memory: Includes 16MB Flash and 8MB PSRAM to effortlessly handle rich graphical interfaces.
• Connectivity: Supports 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (BLE).
• Display: Features a sharp 1.85-inch round capacitive touch LCD with a 360×360 resolution and 262K colors, perfect for running smooth GUI libraries like LVGL.

Audio & Control Peripherals

• Rotary Knob Encoder: A weighted, ball-bearing rotary encoder that gives a tactile, high-end feel for adjusting values like volume, menu navigation, or device settings.
• Audio System: Integrates an onboard audio decoder chip, microphone input, and a speaker/speaker box option for smart audio, offline voice commands, or AI voice interactions (such as Xiaozhi AI).
• Additional Peripherals: Includes a TF/MicroSD card slot, an RTC (Real-Time Clock) sensor, a vibration motor for haptic feedback, and battery recharge management.

Typical Applications

• Smart Home Controller: Acts as a desktop dial to control smart lights, LED strips, or room volume.
• Audio & Media Remote: Functions as a Bluetooth music controller, digital clock, or custom macro pad for software tools.
• AI Voice Assistant: Small desktop node for local voice recognition and smart speaker prototypes.