1. Built with ESP32 main chip and A7670E module, supports 4G LTE Cat.1 network.
2. Onboard 18650 battery holder for lithium power supply, great for outdoor IoT projects.
3. Without GPS module, simplified hardware design to cut overall cost.
4. Compatible with Nano SIM and TF card, abundant GPIO pins for flexible expansion.
5. Comes with 4G antenna and complete interfaces for fast secondary development.
2. Onboard 18650 battery holder for lithium power supply, great for outdoor IoT projects.
3. Without GPS module, simplified hardware design to cut overall cost.
4. Compatible with Nano SIM and TF card, abundant GPIO pins for flexible expansion.
5. Comes with 4G antenna and complete interfaces for fast secondary development.