1. The main control chip uses ESP32-based ESP32-PICO-D4 module (dual-core 32-bit MCU + ULP core), with LoRa node chip SX1276/SX1278;
2. Integrated WiFi, LoRa, Bluetooth three network connection modes, reserved two IPEX (U.FL) interfaces for LoRa and 2.4GHz RF signals;
3. Support the Arduino development environment;
4. The module has good RF circuit design and low power consumption design (sleep current ≤ 30uA), which is convenient for IoT application vendors to quickly verify solutions and deploy applications;
5. Pin: 1.27mm pitch stamp hole