The ESP32-S3 A7670E 4G Development Board is a versatile and powerful microcontroller platform designed by Waveshare. It integrates the ESP32-S3R2 SoC, offering dual-core processing power, Wi-Fi, Bluetooth LE, and advanced security features. Additionally, the board includes the A7670E 4G module, enabling LTE Cat-1/2G network connectivity, GNSS positioning, and telephone/SMS functionalities. This development board is ideal for IoT, portable Wi-Fi, and smart home applications, equipped with numerous peripherals like an onboard camera, speaker, antenna, battery management system, and solar charging support.

Features

• High-Performance ESP32-S3R2 Chip: Features the Xtensa® 32-bit LX7 dual-core processor running at 240 MHz, with 512KB SRAM, 384KB ROM, 2MB PSRAM, and 16MB Flash memory.
• Wireless Communication: Integrated 2.4GHz Wi-Fi and Bluetooth LE for reliable dual-mode wireless communication with superior RF performance.
• 4G LTE Connectivity: Equipped with the A7670E-FASE cellular module supporting 4G Cat-1/2G networking, GNSS positioning (GPS, BeiDou, GLONASS), telephone calls, and SMS.
• USB Switching IC: Onboard USB switching IC with DIP switch for toggling between the USB interface of A7670E, enabling PC connectivity for dial-up internet or module debugging.
• Battery Management and Charging: Onboard lithium battery charging, solar charging, and power management with real-time battery capacity measurement and related protection circuits.
• Rich Peripheral Interfaces: Includes a camera interface, TF card slot, USB port, 38PIN header, and more, providing easy expansion options.
• Powerful Development Environment: Comes with GNSS high-precision ceramic antenna, OV2640 camera, mini speaker, and a variety of onboard indicators and switches for versatile applications.
• Comprehensive Online Resources: Access to online development resources, tutorials, and examples for building 4G portable Wi-Fi, IoT applications, and more.

• Supports Image Recognition: Capable of image recognition when combined with appropriate software and camera modules.
• Supports Solar and USB Charging: Onboard circuits support charging via solar panels or USB ports, making it suitable for outdoor and portable applications.

Specifications

Communication Parameters

• Frequency Band: LTE-FDD: B1, B3, B5, B7, B8, B20
• Data Transmission: ≤5Mbps (UL), ≤10Mbps (DL)
• GNSS: Supports GPS, BeiDou, GLONASS

Operating Parameters

• Power Supply: USB port, 18650 lithium battery holder (18650 battery is NOT included), pin header
• Power Input: 5V (USB port / 5V pin header), 3.7~4.2V (18650 lithium battery holder / VBAT pin header)
• Logic Level: 3.3V

Pinout:

Dimensions

Documentation

• User Manual / Datasheet / Example Codes: Link

Package Includes

• ESP32-S3-A7670E-4G Development Board x1
• Transparent acrylic case and screws pack x1
• GNSS ceramic antenna x1
• OV2640 camera x1
• 8Ω 2W 2030 speaker x1
• 40PIN yellow straight pin header x1
• USB Type-A to Type-C cable (1m) x1
• FPC antenna x1
• Screwdriver x1
• 2P screw terminal x1
• Double-side tape (4PCS) x1