waveshare ESP32-S3 2.1in Round Touch Display 480x480

Waveshare’s ESP32‑S3 2.1‑inch round touch module pairs a 480×480 capacitive display with a powerful Xtensa LX7 dual‑core MCU, onboard Wi‑Fi/BLE5 and rich I/O for compact connected projects.

Built for makers, prototypers and embedded designers who want a compact circular display with modern connectivity, this Waveshare board brings a full‑featured microcontroller and peripherals into a small, ready‑to‑use module. It combines a high‑resolution round capacitive panel with a 32‑bit processor, onboard flash/PSRAM and sensors so you can develop interactive, low‑power devices quickly.

How does the round 480×480 touchscreen improve small device interfaces?

The 2.1‑inch circular capacitive panel provides a crisp 480×480 pixel canvas and 262K colors, making icons and text appear sharp even on compact wearables or control knobs. Capacitive touch with I2C support and interrupt capability delivers responsive, multitouch-friendly input without bulky electronics.

• High pixel density for readable UI at close viewing distances
• Capacitive touch via I2C with interrupt ensures low latency
• 262K colors for gradients, icons and photos
• Compact round form factor suited for dials, smart buttons, or wearable faces

What connectivity and processing power does the ESP32‑S3 module provide?

At its core lies an Xtensa 32‑bit LX7 dual‑core processor running up to 240 MHz, backed by onboard flash, PSRAM and SRAM for robust application performance. Native 2.4 GHz Wi‑Fi (802.11 b/g/n) and Bluetooth 5 (LE) enable wireless communication for IoT, streaming telemetry or remote control.

• Dual‑core LX7 CPU up to 240 MHz for multitasking
• Onboard 16 MB Flash and 8 MB PSRAM for larger firmware and graphics
• 2.4 GHz Wi‑Fi and BLE5 support for modern wireless use cases
• Built‑in antenna for simplified enclosure design

Which I/O, sensors and power features are built into the board?

This Waveshare board exposes UART, I2C and general purpose I/O while integrating extras that speed development: a 6‑axis IMU (QMI8658), a real‑time clock, TF card slot and a battery charge management circuit. A full‑speed USB port simplifies programming and data transfer.

• UART and I2C available for peripherals and displays
• QMI8658 6‑axis sensor for motion and orientation sensing
• TF card slot for data logging or media storage
• Battery recharge management and multiple power modes for low consumption

How do power and low‑power modes support battery projects?

The MCU supports flexible clocking and several power states to reduce draw in idle or sensing modes, making the module suitable for battery‑operated products. Built‑in battery charging and management simplifies integration with single‑cell Li‑ion batteries.

• Configurable clock and sleep modes to extend battery life
• Onboard recharge management for easy battery integration
• Low‑power sensor and interrupt capabilities to wake only when needed

Who this is for: designers, hardware hackers and embedded developers who need a compact touchscreen solution with modern wireless connectivity and sensor integration. Ideal for smart wearables, control knobs, compact handheld instruments, and interactive prototypes where round display aesthetics, touch control and Wi‑Fi/BLE connectivity matter.