Description Waveshare ESP32-C3-LCD-0.71-B is the protective case version of Waveshare's compact 0.71inch round display development board based on the ESP32-C3. It combines a tiny 160×160 IPS round screen, ESP32-C3FH4 wireless MCU, USB Type-C, and lithium battery charging support in a very small footprint that is suitable for always-on indicators, wearable-style gadgets, compact UI nodes, and low-power ESP32 projects. Compared with the board-only version, this -B version also includes the official protective case and convex lens. Features ESP32-C3 wireless MCU: Single-core RISC-V processor up to 160MHz with 2.4GHz Wi-Fi and Bluetooth 5 LE. 0.71inch IPS round display: Compact 160×160 SPI display for icons, status UIs, time display, and simple LVGL-style interfaces. Protective case version: This SKU is the ESP32-C3-LCD-0.71-B version that includes the official protective case and convex lens. Battery charging support: Includes a PL4054 lithium battery recharge IC, useful for portable and rechargeable designs. USB Type-C connection: Supports power supply, data transmission, and firmware downloading through a single connector. Ultra-compact form factor: Especially suitable for wearables, low-power AI eye projects, watches, and tiny indicator devices. Specifications Item Details Brand Waveshare Part No. ESP32-C3-LCD-0.71-B Main chip ESP32-C3FH4 CPU 32-bit RISC-V single-core, up to 160MHz Wireless 2.4GHz Wi-Fi, Bluetooth 5 LE Flash 4MB Display 0.71inch IPS round LCD, 160 × 160 Display driver GC9D01 Display interface SPI Brightness 350cd/m² typical Power USB Type-C, onboard 3.3V regulation Battery charging PL4054 lithium recharge IC, 4.2V full charge Dimensions 20.12 × 22.3 × 1.81mm board dimensions from official data Applications Low-power AI eye projects: Official application scenarios include small animated eye and display-style projects. Wearables and watch-style devices: The tiny round screen and compact body fit visual badges, wearable indicators, and mini gadgets. Status indicators and mini dashboards: Useful for network, battery, or sensor state display in very small connected devices. ESP32-C3 UI learning: A good board for trying simple circular UI layouts with Arduino, TFT_eSPI, and LVGL-style examples. Battery-powered wireless nodes: The charging support makes it practical for compact rechargeable ESP32-C3 products. Product List ESP32-C3-LCD-0.71 x1 Protective case x1 Convex lens x1 Other Content Pinout Definition What's On Board ESP32-C3FH4: Up to 160MHz operating frequency with 4MB Flash memory. 2.4G ceramic antenna: Compact onboard antenna for wireless connectivity. ME6217C33M5G: 800mA max low-dropout regulator. PL4054: Lithium battery recharge IC with 4.2V full charge behavior. USB Type-C: For power supply, data transmission, and program downloading. RESET and BOOT buttons: Useful for flashing and recovery operations. Outline Dimensions Demo Direction Official demo packages include text and number display, shape drawing, animated eye, image display, and clock examples. The official wiki specifically shows this board being used for low-power AI emulation eyes, watches, and small HMI tasks. Resources Official Wiki Schematic PDF Official Demo Package 3D File ESP32-C3 Datasheet Arduino IDE Flash Download Tool FAQ Is this the version with the protective case? Yes. This SKU corresponds to the ESP32-C3-LCD-0.71-B version, which includes the official protective case and convex lens. What is the difference between ESP32-C3-LCD-0.71 and ESP32-C3-LCD-0.71-B? The core board is the same display platform, but the -B version adds the protective case and convex lens. The board-only version does not include those accessories. What kind of projects is this board good for? It is best for small status displays, wearables, watch-style interfaces, low-power AI eye demos, and tiny connected UI nodes where the small round display is a feature, not a limitation.
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