Description Waveshare ESP32-S3-LCD-3.16 Display Dev Board 320×820 is a slim-format ESP32 development board built around the ESP32-S3R8 with 16MB Flash, 8MB PSRAM, and a distinctive 3.16 inch 320 × 820 RGB LCD. It is designed for HMI, status panels, smart terminals, and other embedded interfaces that benefit from a tall narrow display layout. The board also integrates a QMI8658 6-axis IMU, PCF85063 RTC, TF card support, lithium battery connector, and exposed I2C, UART, and USB interfaces for flexible peripheral expansion. Features ESP32-S3R8 controller with dual-core Xtensa LX7 architecture and up to 240MHz clock speed. 3.16 inch LCD with 320 × 820 resolution and 64K color output. ST7701 display driver with RGB565 communication interface. Landscape display support available through software configuration. QMI8658 6-axis IMU for motion, gesture, and orientation aware applications. PCF85063 RTC with reserved independent RTC battery interface. TF card slot for external file and image storage. Rich expansion ports including SH1.0 I2C, SH1.0 UART, MX1.25 USB, and battery interface. Specifications Specification Details Model ESP32-S3-LCD-3.16 Controller ESP32-S3R8 CPU Dual-core Xtensa 32-bit LX7, up to 240MHz Wireless 2.4GHz Wi-Fi and Bluetooth 5 LE Memory 16MB Flash, 8MB PSRAM Display Size 3.16 inch Resolution 320 × 820 Display Color 64K Display Interface RGB565 Display Driver ST7701 IMU QMI8658 6-axis IMU RTC PCF85063 Storage TF card slot Battery 3.7V MX1.25 lithium battery connector Expansion SH1.0 4PIN I2C, SH1.0 4PIN UART, MX1.25 4PIN USB Applications HMI development for narrow-format control panels and custom smart interfaces. Status dashboards that need a tall 320 × 820 display for text, graphs, and live system data. Portable embedded terminals with RTC, TF storage, and battery support. Motion-aware devices that use the onboard IMU for gesture, posture, or movement related input. LVGL-based GUI projects on a distinctive display aspect ratio. Product List ESP32-S3-LCD-3.16 x1 SH1.0 4PIN cable x2 Other Content The official onboard resources image shows the ESP32-S3R8, 16MB NOR Flash, QMI8658, PCF85063, TF slot, battery connector, I2C/UART/USB headers, and antenna options. This layout makes the board a practical base for slim HMI and data-display projects. Resources Wiki / User Guide Schematic PDF Demo Package ESP32-S3 Datasheet ESP32-S3 Technical Reference Manual QMI8658 Datasheet PCF85063 Datasheet LVGL Documentation FAQ Does this board include touch support?No. The official ESP32-S3-LCD-3.16 hardware focuses on the long-format RGB display and does not include the touch hardware stack used by Waveshare touch-display variants. Why is this display format useful?The 320 × 820 aspect ratio is well suited for vertical dashboards, side panels, compact instrument interfaces, and custom narrow-format HMI layouts. Can it run LVGL projects?Yes. With ESP32-S3R8, 8MB PSRAM, and the onboard RGB display, it is suitable for LVGL-based GUI development and embedded display prototyping.
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