Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards |
| Origin | - |
| Processor | Dual-core ESP32-S3 @ 240 MHz |
| Cellular Module | SIM7670G (Global 4G LTE Cat-1) |
| Wireless Connectivity | Wi-Fi 802.11 b/g/n and Bluetooth 5.0 LE |
| Positioning System | GNSS (GPS, Beidou, Galileo, GLONASS) |
| Interface Options | USB Type-C, MicroSD Slot, GPIO, I2C, SPI, UART |
| Antenna Interfaces | IPEX connectors for Cellular, Wi-Fi, and GNSS |
| Power Supply | 5V via USB or Li-Po Battery Management |
| Operating Temperature | -40°C to +85°C |
| Dimensions | 65mm x 45mm x 12mm |
| Supported OS | ESP-IDF, Arduino Core, MicroPython |
Anonymous
Mar 30, 2026
Rating: 5/5
Excellent value for money
Compared to other boards with similar specs, this offers the best price-to-performance ratio. The inclusion of a battery charging circuit is a huge plus for portable applications.
Anonymous
Mar 25, 2026
Rating: 4/5
Great hardware, documentation could be better
The build quality is solid and the SIM7670G module provides excellent global coverage. I deducted one star because the pinout diagram in the wiki was slightly confusing for the UART pins, but community forums helped clarify it quickly.
Anonymous
Mar 24, 2026
Rating: 5/5
Reliable GPS and LTE
I've tested this in both urban and rural environments. The signal retention is strong, and the switch between Wi-Fi and 4G is seamless. Highly recommend for anyone building asset trackers.
Anonymous
Mar 22, 2026
Rating: 5/5
Perfect for IoT Prototyping
This board is exactly what I needed for my remote sensor project. The 4G connectivity works flawlessly out of the box with a standard SIM card, and the GNSS accuracy is impressive. Setup with ESP-IDF was straightforward.
Anonymous
Mar 16, 2026
Rating: 5/5
Easy to flash and debug
The USB-C interface makes flashing firmware very convenient. I appreciated the clear labeling on the PCB. It supports MicroPython well, making rapid prototyping very easy.
Anonymous
Mar 08, 2026
Rating: 4/5
Solid performance for industrial use
We deployed ten of these for a pilot study. They have been running continuously for three weeks without issues. The only minor issue is that the antennas are sold separately, which should be noted clearly.
Q: Does the GNSS work indoors?
A: Like all GPS/GNSS systems, signal acquisition indoors is limited and depends on window proximity or signal reflection. For best results, we recommend testing with a clear view of the sky or using an external active antenna placed outdoors.
Q: What software frameworks are supported for development?
A: This board is fully compatible with the Espressif ESP-IDF, the Arduino IDE (via the ESP32 core), and MicroPython. Example code for 4G and GNSS is available in our GitHub repository.
Q: Does this board come with the cellular and GPS antennas included?
A: No, the board features IPEX connectors for antennas, but the cellular, Wi-Fi, and GNSS antennas must be purchased separately to ensure optimal signal performance.
Q: Is the SIM card slot compatible with nano-SIM cards?
A: Yes, the SIM7670G module on this board uses a standard Nano-SIM card slot. Please ensure your carrier supports the LTE bands relevant to your region.
Q: Can I power this board directly with a 3.7V Li-Po battery?
A: Yes, the board includes a built-in battery management system. You can connect a single-cell Li-Po battery directly to the designated battery header, and it will handle charging via USB and power regulation.
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