Waveshare ESP32-S3 Touch AMOLED 1.75-inch Round Development Board

Waveshare 1.75-inch circular AMOLED touch development board. Features ESP32-S3R8 + 8MB PSRAM, 466×466 pixel QSPI AMOLED + CST816 touch. Equipped with dual microphone array, QMI8658 IMU, PCF85063 RTC, and TCA9554 I/O expander. Ideal for smartwatch/IoT device prototyping. xiaozhi-esp32 (with Device-Side AEC support). Specifications Chip ESP32-S3R8 Module ESP32-S3-WROOM-1 Flash 16MB PSRAM 8MB Display Size 1.75inch Display Type Round AMOLED (QSPI) Resolution 466x466 Driver SH8601 Touch Yes Speaker Yes Speaker Details Onboard speaker Microphone Type Dual Microphone Details Dual microphone array Audio Codec ES7210 (4ch ADC) Connectivity WiFi 2.4GHz (802.11 b/g/n), Bluetooth 5 (LE) Battery Yes Battery Details Li-ion charging circuit (MX1.25 connector) Sensors QMI8658 6-axis IMU, PCF85063 RTC, TCA9554 I/O expander, CST816 touch IC USB Type-C Buttons Boot, Reset Documentation ESP32-S3-Touch-AMOLED-1.75 Wiki xiaozhi-esp32 Repository Reference LinksWaveshare: https://www.waveshare.com/esp32-s3-touch-amoled-1.75.htm RemarksAvailable on Waveshare official store for $29.99. Configuration with IMU/RTC suggests suitability for smartwatch applications. Pricing (2026-05-05): Source: $29.99 USD (waveshare-official), retail = source × 2 × 155 JPY/USD = ¥9300