ESP32 S3 1.85 inch Round Touch LCD 1.85C Development Board with built-in speaker box and 3.7 V lithium battery

The Waveshare ESP32 S3 1.85 inch round Touch LCD 1.85C development board pairs an Xtensa S3R8 dual-core processor with 2.4 GHz Wi-Fi, Bluetooth 5 (LE), a vibrant 360×360 round IPS touch display, built-in speaker box and 3.7 V lithium battery—perfect for Home Assistant projects.

Features

• Xtensa S3R8 dual-core processor up to 240 MHz
• 2.4 GHz Wi-Fi 802.11 b/g/n and Bluetooth 5 (LE)
• 16 MB flash, 8 MB PSRAM, 512 KB SRAM, 384 KB ROM
• 1.85 inch round IPS touch display, 360×360 resolution
• Capacitive touch via I²C with interrupt support
• Onboard QMI8658 six-axis sensor and PCF85063 RTC
• Integrated speaker box for clear audio
• 3.7 V MX1.25 battery charge/discharge header
• Supports Home Assistant dashboards and LVGL GUIs

Technical Specifications

• Display: 1.85 inch round IPS, 360×360 pixels
• Driver IC: ST7789
• Touch IC: GT911
• Interfaces: SPI, I²C, UART, USB Type-C, GPIO
• Audio: onboard speaker, 3.5 mm audio out
• Sensors: QMI8658 IMU, PCF85063 RTC
• Processor speed: up to 240 MHz
• Memory: 16 MB flash, 8 MB PSRAM
• Weight: approx. 55 g (with case and battery)

Package Contents

• ESP32 S3 Touch LCD 1.85C board × 1
• Speaker box × 1
• 3.7 V lithium battery × 1
• SH1.0 4-pin cable (100 mm) × 2
• USB Type-C cable (100 mm) × 1

Documentation

ESP32 S3 Touch LCD 1.85C Documentation