Description Waveshare ESP32-S3-Touch-AMOLED-1.75-G is a 1.75inch AMOLED round touch development board that combines the ESP32-S3R8 platform with GNSS support, dual microphones, speaker output, 466×466 AMOLED display, and battery-ready hardware in a compact round form factor. It is designed for projects that need both a premium circular UI and location-aware or voice-capable hardware, making it a strong fit for smart wearables, portable assistants, GPS-enabled terminals, and ESP32-S3 speech interaction demos. Features 1.75inch round AMOLED display: 466×466 resolution, 16.7M colors, high contrast, and a circular layout for refined UI design. ESP32-S3R8 onboard: Xtensa 32-bit LX7 dual-core processor up to 240MHz with Wi-Fi and Bluetooth 5 LE. GNSS-ready hardware: Includes a dedicated GPS connector and bundled GNSS ceramic antenna for positioning-based projects. Audio and speech hardware: Includes dual microphones, 8Ω 2W speaker, and ES7210 echo-cancellation support for speech-oriented interaction. Power and battery support: Includes AXP2101 PMIC, lithium battery header, and power control for portable workflows. Sensor and storage support: Built with QMI8658 IMU, PCF85063 RTC, and a TF card slot. Specifications Item Details Brand Waveshare Part No. ESP32-S3-Touch-AMOLED-1.75-G Main chip ESP32-S3R8 CPU Xtensa 32-bit LX7 dual-core, up to 240MHz Wireless 2.4GHz Wi-Fi (802.11 b/g/n), Bluetooth 5 LE Memory 8MB PSRAM, 16MB Flash Display 1.75inch AMOLED, 466 × 466, 16.7M colors Brightness 700cd/㎡ Contrast ratio 100000:1 Display interface QSPI Driver / touch IC CO5300 / CST9217 GNSS GPS connector with GNSS ceramic antenna included Audio Dual microphones, ES7210, 8Ω 2W speaker support Applications GPS-enabled smart devices: Suitable for portable positioning terminals, route-aware interfaces, and outdoor data nodes. Speech interaction prototypes: The microphones and speaker support make it practical for assistant-style or voice-enabled demos. Round AMOLED dashboards: A strong fit for circular HMI, smart watches, and compact premium touch terminals. Portable ESP32-S3 products: The battery support and integrated PMIC help for rechargeable mobile designs. Sensor-rich connected interfaces: IMU, RTC, storage, and GNSS make it more capable than a basic display-only board. Product List ESP32-S3-Touch-AMOLED-1.75-G x1 8Ω 2W speaker x1 GNSS ceramic antenna x1 Other Content What's On Board ESP32-S3R8: Main Wi-Fi and BLE SoC with onboard 8MB PSRAM. QMI8658 + PCF85063: IMU and RTC for motion-aware and time-based functionality. AXP2101: Highly integrated power management IC. Dual microphones + ES7210: Higher-quality audio capture with echo-cancellation support. TF card + lithium battery header: Storage and rechargeable operation support. GPS antenna path: Dedicated IPEX 1 GPS connector for the included GNSS ceramic antenna. Interface Notes Speaker header: Uses an MX1.25 2P speaker header for the bundled 8Ω 2W speaker. GNSS connector: Uses the dedicated IPEX 1 GPS connector for location applications. 8PIN 2.54mm header: Available for debugging and peripheral connections. Type-C: Used for program burning and log printing through the ESP32-S3 USB interface. Resources Official Wiki Waveshare Documentation Platform Official FAQ Schematic PDF Official Demo Package 3D STEP File ESP32-S3 Datasheet FAQ Does this version include GNSS hardware accessories? Yes. This SKU includes the GNSS ceramic antenna and is built around the ESP32-S3-Touch-AMOLED-1.75-G version with dedicated GPS connector support. Why is this board stronger for speech interaction than a basic display board? It combines a round AMOLED touch display, dual microphones, speaker support, and ES7210 echo-cancellation hardware, which makes it much more suitable for voice-oriented projects. What kinds of projects fit this board best? It works especially well for GPS-enabled smart devices, voice-capable assistants, portable circular UI products, and ESP32-S3 sensor-rich terminals.
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