Onboard PCF85063 RTC chip for real-time clock functionality. Supports 2.4 GHz Wi-Fi (802.11b/g/n) and Bluetooth 5 (LE) with onboard antenna. Built-in 512 KB SRAM and 384 KB ROM; stacked 8 MB PSRAM and external 16 MB Flash. Onboard 3.49-inch capacitive touch HD IPS display with 172 × 640 resolution and 16.7 million colors. Dual digital microphone arrays support noise reduction and echo cancellation for voice recognition and voice wake-up applications. High-performance, highly integrated microcontroller development board featuring: - 3.49-inch capacitive HD IPS display - Integrated power management IC - Six-axis sensor (3-axis accelerometer + 3-axis gyroscope) - RTC - Low-power audio codec - Echo cancellation circuit Display specifications: - Panel type: IPS LCD - Resolution: 172 × 640 - Brightness: 350 cd/m² - Interface: QSPI (display), I²C (touch) - Size: 3.49 inches - Color depth: 16.7 million colors - Contrast ratio: 1200:1 - Driver IC: AXS15231B - Touch type: Capacitive Package includes: 1 × ESP32-S3 3.49-inch Development Board Note: Color appearance may vary slightly due to lighting and screen settings. Dimensions are subject to a tolerance of ±1–3 cm.