7Semi ESP32-S3 EC200U 4G LTE Cat-1 WiFi Bluetooth GNSS IoT Smart Modem

The 7Semi ESP32-S3 EC200U 4G LTE Cat-1 WiFi Bluetooth GNSS IoT Smart Modem is a powerful, all-in-one connectivity solution designed for next-generation IoT and M2M applications. It integrates the ESP32-S3 dual-core microcontroller with the Quectel EC200U LTE Cat-1 modem and GNSS positioning capabilities, offering cellular, Wi-Fi, Bluetooth, and GPS/GLONASS/BeiDou/Galileo connectivity on a single board. This versatile module enables high-speed data transfer, cloud communication, and location tracking, making it perfect for industrial automation, smart transportation, and remote monitoring systems.

Technical Specifications:

• Main Processor: Espressif ESP32-S3 dual-core Xtensa LX7 @ 240 MHz
  
• Wireless Connectivity:
   – LTE: Cat-1 (Quectel EC200U)
   – Wi-Fi: 802.11 b/g/n (2.4 GHz)
   – Bluetooth: v5.0 (Classic + BLE)
   – GNSS: GPS, GLONASS, BeiDou, Galileo, QZSS
  
• Cellular Module: Quectel EC200U with integrated SIM card interface
  
• Operating Voltage: 5 V (via USB-C) or 3.3 V logic level input
  
• Input Power Range: 4.5 V – 5.5 V
  
• Interfaces:
   – UART, SPI, I²C, GPIO, ADC, PWM, and USB (for programming and communication)
  
• LTE Features:
   – Data Rate: Up to 10 Mbps (DL), 5 Mbps (UL)
   – Antenna Interface: IPEX connector for LTE and GNSS antennas
  
• GNSS Accuracy: <2.5 m CEP
  
• Flash Memory: 16 MB (ESP32-S3)
  
• PSRAM: 8 MB
  
• SIM Interface: Nano SIM card slot (1.8 V / 3 V supported)
  
• Power Consumption:
   – Sleep Mode: <50 µA
   – Active Mode: ~250 mA average (LTE transmission)
  
• USB Interface: Type-C for power, debugging, and data
  
• Operating Temperature: -40°C to +85°C
  
• PCB: High-quality FR-4, breadboard-friendly form factor
  

Features:

• Combines 4G LTE, Wi-Fi, Bluetooth, and GNSS in a single IoT module
  
• ESP32-S3 provides high-performance dual-core processing for real-time applications
  
• Integrated EC200U LTE Cat-1 modem ensures reliable cellular connectivity
  
• Built-in GNSS for accurate location tracking and navigation
  
• Supports multiple communication protocols (MQTT, HTTP, TCP/IP)
  
• USB-C interface for power, programming, and communication
  
• Onboard SIM slot and IPEX connectors for flexible antenna use
  
• Low power consumption ideal for portable and remote IoT systems
  
• Compatible with Arduino, ESP-IDF, and AT command firmware
  
• Compact, plug-and-play breakout ideal for prototyping and production use

Applications:

• IoT gateways and smart communication hubs
  
• Industrial automation and remote control systems
  
• Smart metering and telemetry solutions
  
• GPS tracking and vehicle telematics
  
• Smart agriculture and environmental monitoring
  
• Edge computing and cloud-connected sensor nodes
  
• Remote health monitoring and wearable devices
  
• Retail, POS, and payment terminal communication systems
  
• Smart city and infrastructure monitoring projects
  
• Educational and R&D IoT platform development