ESP32-S3 4.2inch RLCD Development Board, 300×400, E-Paper-Like Screen, Supports Wi-Fi & BLE Dual-Mode Communication, AI Voice Interaction,Temperature & Humidity Monitoring, DIY, (with Batt)

Features

1.Fully Reflective Screen and Low-Power Design— Equipped with a 4.2-inch fully reflective screen (RLCD) with a resolution of 300×400, it requires no backlight, providing clear display with extremely low power consumption and a fast refresh rate, making it suitable for always-on display applications.

2.High-Performance AI Voice Interaction Capabilities— Utilizes an ESP32-S3 dual-core processor (240MHz) and integrates a dual-microphone array, supporting noise reduction, echo cancellation, and far/near field voice wake-up, facilitating the development of precise AI voice interaction applications.

3.Integrated Temperature and Humidity Monitoring and Real-Time Clock— Onboard high-precision SHTC3 temperature and humidity sensor and PCF85063 R T C chip support real-time environmental monitoring and time management, suitable for IoT scenarios such as smart homes and environmental sensing.

4.Rich Expansion Interfaces and Storage Capabilities— Provides a Micro SD card slot, USB, UART, I2C, and multiple GPIO interfaces, supporting external storage and device expansion; built-in 8MB PS RAM and 16MB Flash meet the needs of multimedia and complex applications.

5.Wireless connectivity and flexible power supply— Supports dual-mode communication with 2.4GHz Wi-Fi and Bluetooth 5.0 (LE), onboard 18650 batt holder and independent R T C backup batt interface, balancing main power supply life and continuous clock operation, suitable for mobile low-power projects.

Package Content

ESP32-S3-RLCD-4.2 host x1
Acrylic stand (2PCS) x1
18650 rechargeable Lithium Batt x1
8Ω 2W MX1.25 2PIN speaker x1
Screwdriver x1

• Fully Reflective Screen and Low-Power Design— Equipped with a 4.2-inch fully reflective screen (RLCD) with a resolution of 300×400, it requires no backlight, providing clear display with extremely low power consumption and a fast refresh rate, making it suitable for always-on display applications.
• High-Performance AI Voice Interaction Capabilities— Utilizes an ESP32-S3 dual-core processor (240MHz) and integrates a dual-microphone array, supporting noise reduction, echo cancellation, and far/near field voice wake-up, facilitating the development of precise AI voice interaction applications.
• Integrated Temperature and Humidity Monitoring and Real-Time Clock— Onboard high-precision SHTC3 temperature and humidity sensor and PCF85063 R T C chip support real-time environmental monitoring and time management, suitable for IoT scenarios such as smart homes and environmental sensing.
• Rich Expansion Interfaces and Storage Capabilities— Provides a Micro SD card slot, USB, UART, I2C, and multiple GPIO interfaces, supporting external storage and device expansion; built-in 8MB PS RAM and 16MB Flash meet the needs of multimedia and complex applications.
• Wireless connectivity and flexible power supply— Supports dual-mode communication with 2.4GHz Wi-Fi and Bluetooth 5.0 (LE), onboard 18650 batt holder and independent R T C backup batt interface, balancing main power supply life and continuous clock operation, suitable for mobile low-power projects.
• We provide Online How-to-use Document/User Manual for reference：//bit.ly/3MjsC8F