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The 7Semi ESP32-S3 EC200U is an IoT smart modem offering WiFi, Bluetooth, GNSS and AI processing on one board. It is aimed at smart home, AIoT and portable Wi-Fi applications, and it pairs the EC200U 4G LTE Cat-1 modem with an ESP32-S3 for AI and neural computing tasks.
The modem supports LTE-FDD, LTE-TDD and GSM/GPRS networks, and GNSS positioning across GPS, GLONASS, BeiDou, Galileo and QZSS.
The processor is a dual-core Xtensa 32-bit LX7 with 8 MB flash and 8 MB PSRAM. Wireless includes 2.4 GHz Wi-Fi and Bluetooth 5 (LE), and a USB Type-C port is used to switch between the 4G module and the ESP32-S3's own connectivity. Network bands are LTE-FDD B1/B3/B5/B8, LTE-TDD B34/B38/B39/B40/B41 and GSM at 900/1800 MHz, and the board offers several low-power working modes for energy-sensitive applications.
Power the module from a clean, adequately rated supply, since radio modules draw current in short bursts that a weak supply cannot follow. Keep the antenna clear of metal and ground planes, and start with the maker's example code before writing your own.
Developers building portable WiFi hotspots, outdoor monitoring devices and AIoT gadgets that need cellular data, GNSS and on-device AI in one board.
Insert a SIM card if you plan to use the cellular side, and use the USB Type-C port to choose whether you are talking to the 4G modem or the ESP32-S3 itself. Start with the maker's example firmware to confirm WiFi, Bluetooth, GNSS and the cellular link each work on their own before you combine them in your own application.
LTE Cat-1.
Yes, GPS, GLONASS, BeiDou, Galileo and QZSS.
A dual-core Xtensa 32-bit LX7 (ESP32-S3).
8 MB flash and 8 MB PSRAM.
2.4 GHz WiFi and Bluetooth 5 (LE).
| Brand | 7Semi |
|---|---|
| MCU / Processor | ESP32-S3 |
| Selling unit | PCS |
