Description Waveshare ESP32-S3 A7670E 4G Dev Board LTE Cat-1 WiFi Bluetooth GNSS is a highly integrated ESP32-S3 4G development board built for connected IoT devices, edge intelligence, portable networking, remote monitoring, and positioning applications. It combines the ESP32-S3R8 with the A7670E-FASE 4G Cat-1 / 2G communication module, while also integrating WiFi, Bluetooth, GNSS positioning, camera interface, TF card slot, speaker, microphone, battery management, and solar charging support. This Waveshare ESP32-S3 A7670E 4G board is designed for developers who need more than a simple microcontroller board. It supports telephone calls, SMS, dial-up networking, portable WiFi hotspot use, GPS tracking, MQTT-based cloud data reporting, and low-power outdoor deployment. For smart agriculture, mobile terminals, remote sensor gateways, asset tracking, solar-powered field devices, and IoT prototypes, this ESP32-S3 4G GNSS development board is one of the more complete options in the Waveshare lineup. Features ESP32-S3R8 main controller with onboard 16MB Flash and 8MB PSRAM. A7670E-FASE cellular module supporting 4G Cat-1 / 2G, GNSS positioning, telephone calls, and SMS. Integrated WiFi and BLE 5.0 for flexible short-range wireless connectivity alongside 4G networking. USB switching IC and DIP switch for using the A7670E USB channel for dial-up internet or debugging. OV2640 / OV5640 camera support, TF card slot, speaker output, and microphone input. Battery charging, solar charging, battery voltage measurement, and power management for portable and outdoor deployments. Suitable for 4G portable WiFi, IoT tracking, remote telemetry, smart garden systems, and mobile positioning. Specifications Item Details Main Chip ESP32-S3R8 Cellular Module A7670E-FASE Cellular Support 4G LTE Cat-1 / 2G Wireless WiFi, Bluetooth, LTE, GNSS Memory 16MB Flash, 8MB PSRAM Storage Expansion TF card slot Camera Support 24PIN camera interface, compatible with OV2640 / OV5640 Audio Microphone input, speaker output Power Features Lithium battery support, solar charging, battery measurement, DC-DC power management Typical Use 4G IoT, portable hotspot, tracking, MQTT telemetry, outdoor smart devices Applications 4G portable WiFi and mobile internet access devices. Remote monitoring and telemetry using MQTT and cellular networking. GNSS asset tracking, animal tracking, and mobile positioning projects. Smart garden and agricultural automation with cloud-connected sensor reporting. Solar-powered outdoor IoT nodes that need battery charging and power management. ESP32-S3 edge AI and camera projects that combine local processing with 4G uplink. Product List ESP32-S3-A7670E-4G x1 Transparent acrylic case and screws pack x1 GNSS ceramic antenna x1 OV2640 / OV5640 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 Other Content What's on board Pinout definition Outline dimensions Portable 4G WiFi solution Windows / Linux dial-up internet support Telephone call and SMS support GNSS positioning support Resources Official Documentation Wiki Entry Waveshare Documentation Platform Waveshare.cloud FAQ What makes this ESP32-S3 board different from a normal ESP32 development board?This board adds a full A7670E 4G communication module, GNSS, telephone call / SMS support, camera interface, battery and solar charging features, and a more complete set of peripherals for real-world IoT deployment. Can it be used for portable hotspot or dial-up internet projects?Yes. Waveshare specifically shows it as a portable 4G WiFi solution, and the onboard USB switching design also allows using the A7670E USB interface for Windows / Linux dial-up internet or debugging. Does it support positioning and tracking projects?Yes. The board supports GNSS positioning, which makes it suitable for GPS reporting, mobile detection, device positioning, and animal or asset tracking. Can it be used in solar-powered outdoor systems?Yes. It supports lithium battery charging, solar charging, battery capacity measurement, and related power management functions, which is one of its biggest practical advantages for field deployment. What similar products should I compare it with?If you are comparing connectivity-focused Waveshare IoT boards, this model is the better fit when you need ESP32-S3 + 4G + GNSS + audio + camera + power management in one board, rather than a simpler WiFi-only controller.
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