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7Semi EG800AK 4G LTE Cat-1bis Modem With GNSS, Quectel EG800AK-CN, 10 Mbps Download, UART and AT Command Interface for ESP32, STM32, and Raspberry Pi
The 7Semi EG800AK is a compact 4G LTE Cat-1bis modem with GNSS, built around the Quectel EG800AK-CN module. It supports LTE-FDD bands B1, B3, B5, and B8 and LTE-TDD bands B34, B38, B39, B40, and B41, giving broad operator compatibility without choosing a band-specific variant. Cat-1bis offers download speeds of up to 10 Mbps and upload speeds of up to 5 Mbps. This is enough for cloud-connected IoT data, OTA firmware updates, and real-time telemetry. The built-in GNSS receiver supports GPS, BDS, GLONASS, and Galileo, so one board handles both cellular connectivity and positioning for tracking applications.
The board connects to ESP32, STM32, RP2040, Arduino, Raspberry Pi, and Linux SBCs through UART TX and RX pins and the standard AT command set. Dedicated KEY and RESET pins let the host controller power the modem on and off and reset it without pressing any button, which suits unattended industrial deployments. The board includes a Nano SIM slot, a U.FL/IPEX antenna connector, network and power status LEDs, and four mounting holes for enclosure and panel installation. It accepts a wide 5 V to 26 V DC input, and an external LTE antenna is included in the kit.
Key Features
- Modem IC: Quectel EG800AK-CN LTE Cat-1bis module for reliable 4G connectivity
- LTE-FDD Bands: B1, B3, B5, and B8 for wide operator coverage
- LTE-TDD Bands: B34, B38, B39, B40, and B41 for TDD network support
- GNSS Support: GPS, BDS, GLONASS, and Galileo for location tracking
- Data Speeds: Up to 10 Mbps download and 5 Mbps upload
- UART Interface: TX and RX pins for direct AT command control from the host controller
- AT Command Interface: Standard Quectel AT commands for network registration, data connection, and status queries
- KEY Control Pin: Programmatic modem power-on and power-off from the host
- RESET Control Pin: Hardware reset without manual intervention
- Wide Input Voltage: 5 V to 26 V DC with onboard power regulation
- Nano SIM Slot: Onboard slot with no external SIM holder or adapter needed
- Antenna Connector: U.FL/IPEX connector with external LTE antenna included
- Status LEDs: Network and power indicators for quick visual checks
- 4 Mounting Holes: Secure fitting in enclosures and panels
- Compact Size: 62 x 40 mm board for space-constrained designs
- Operating Temperature: -30 deg C to 60 deg C for industrial use
Applications
- IoT projects with ESP32, STM32, RP2040, Arduino, and Raspberry Pi that need 4G connectivity over UART
- Asset tracking and vehicle trackers that need LTE and GNSS positioning (GPS, BDS, GLONASS, Galileo)
- Industrial automation and remote monitoring with automated modem control through KEY and RESET pins
- Telemetry and cloud-connected devices that need OTA updates and real-time sensor data streaming
- Industrial gateways and data cards that need a compact, panel-mountable 4G modem
- POS terminals, industrial PDAs, and smart safety devices
- Unattended remote deployments that need automatic power-on, reset, and connection management
