Waveshare ESP32-S3 A7670E 4G Development Board, LTE Cat-1 / 2G / WiFi/Bluetooth/Telephone Call/SMS/GNSS Positioning Support, Suitable for 4G Portable WiFi, Onboard Camera/Speaker/Antenna

Adopts ESP32-S3R2 chip with high-performance Xtensa 32-bit LX7 dual-core processor, capable of running at 240 MHz
Built in 512KB SRAM, 384KB ROM, 2MB of PSRAM, and 16MB Flash memory. Integrated 2.4GHz Wi-Fi and Bluetooth LE dual-mode wireless communication, featuring superior RF performance
Equipped with the A7670E-FASE cellular module, supports 4G Cat-1/2G networking, GNSS positioning, telephone calls, SMS, and other functions. Onboard USB switching IC and DIP switch for switching to use the USB interface of A7670E, suitable for connecting with PC for dial-up internet or debugging of A7670E module
Onboard lithium battery charging, solar charging, power management, battery capacity measurement, and related protection circuits, supports USB and solar charging with real-time battery capacity measurement. Onboard 18650 battery holder (18650 battery is NOT included), adapting VBAT pin header for connecting to external 3.7V lithium battery, with anti-reverse protection
Rich peripheral interfaces such as camera interface, TF card slot, USB port, 38PIN header, etc., easy to expand and achieve various functions. Onboard multiple DIP switches for camera on/off, switching USB channels to avoid interface conflict, and setting power on/off for some circuits to reduce power consumption
Comes with GNSS high-precision ceramic antenna, OV2640 camera, mini speaker, acrylic case, etc., easy to develop various applications. Comes with online development resources and manual (including tutorials, demos for 4G portable WiFi and other IoT examples)