The ESP32-S3 Round LCD Development Board features a 1.85-inch circular touchscreen display (360 × 360, 262K colours) powered by an ESP32-S3 dual-core processor with Wi-Fi and Bluetooth 5 connectivity. It includes an onboard microphone, audio decoder, RTC, TF card slot, and battery charging — making it a complete platform for smart displays, voice-controlled devices, and wearable interfaces.

The board supports AI speech interaction with offline voice commands, and is compatible with both Arduino IDE and ESP-IDF development frameworks.

Key Features

• ESP32-S3R8 Processor – Xtensa dual-core LX7, up to 240 MHz
• Memory – 512 KB SRAM, 384 KB ROM, 16 MB Flash, 8 MB PSRAM
• 1.85" Round LCD – 360 × 360 resolution, 262K colours, ST77916 driver
• Capacitive Touch – CST816 controller via I²C with interrupt support
• Wi-Fi – 802.11 b/g/n (2.4 GHz)
• Bluetooth 5 – BLE
• Audio – PCM5101 decoder with onboard microphone
• AI Speech – Offline voice commands with online model compatibility
• RTC – Onboard real-time clock
• TF Card Slot – Expandable storage
• Battery Management – Onboard recharge circuit
• USB-C – Programming and debugging
• Dimensions – 58.0 mm (diameter) × 17.0 mm (height), 31 g

Ideal For

• Smart home control panels and HMI displays
• Voice-controlled IoT devices
• Wearable interfaces and smart clocks
• Portable audio and notification devices

Resources

• Product Wiki – Pinout, setup guides, Arduino and ESP-IDF examples