ESP32-S3 SIM7670G 4G Development Board, LTE Cat-1/W-F/B L E/GNSS Positioning Support, Global Coverage Multi Band, 4G Portable W-F-i, Onboard Camera/Antenna, Solar/USB Charging, 4G Cat-1 Network

Features
Adopts ESP32-S3R2 chip , capable of running at 240 MHz
Built in 512KB SRAM, 384KB ROM, 2MB of PSRAM, and 16MB Flash memory
Integrated 2.4GHz W--i-F--i and Blue--too--th LE dual-mode wire--less communication, featuring superior RF performance
Equipped with the SIM7670G cellular module, supports 4G Cat-1 networking, GNSS positioning and other functions
Onboard USB switching IC and DIP switch for switching to use the USB interface of SIM7670G, suitable for connecting with PC for dial-up internet or debugging of SIM7670G 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, acrylic case, etc., easy to develop various applications
Comes with online development resources and manual

Specifications

Communication Parameters
Frequency Band: LTE-FDD: B1, B2, B3, B4, B5, B7, B8, B12, B13, B18, B19, B20, B25, B26, B28, B66 LTE-TDD: B34, B38, B39, B40, B41
GNSS: GPS, BeiDou, GLONASS, Galileo

Operating Parameters
Power supply method: USB port, 18650 lithium batte-ry 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