<p>Advanced Connectivity: Equipped with ESP32 for WiFi and Bluetooth functionality, ensuring seamless connectivity and integration with devices and networks</p> <p>Multiple Frequency Support: Supports multiple frequencies 868Mhz, making it versatile for different regional requirements</p> <p>Integrated GPS: Features a GPS module for precise navigation and tracking capabilities</p> <p>Enhanced Display: Comes with an OLED display providing clear and vibrant visual feedback</p> <p>MCU: ESP32</p> <p>FLASH: 4MB</p> <p>PSRAM: 8MB</p> <p>Driver: CH9102</p> <p>Wireless protocol: Wi-Fi:802.11b\/g</p> <p>Bluetooth: Standard Bluetooth V4.2 + BLE</p> <p>Onboard functions: Three buttons (power + I038 + reset), PMU power management: AXP2101</p> <p>Power supply mode: Supports USB power supply + 18650 battery power supply and other options</p> <p> NEO-6 GPS positioning module: Supports GPS positioning function</p> <p>Onboard crystal for faster hot start Support external interrupt\/wake-up</p> <p> long-distance low-power LoRa transceiver</p> <p>High sensitivity: as low as -148dBm, transceiver rate: up to 300 kbps</p> <p>(The product appearance and printed words depending on the batch, but this does not affect use)</p> <p>Colour:Black</p> <p>Material:PCB</p> <p>Package Contents:</p> <p>1 x Development Board Kit</p> <p>Only the above package content, other products are not included.</p> <p>Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.</p>