Supports , monitoring the signal channel noise before transmitting, greatly improves the success ratio under extreme environment Supports RSSI signal intensity indicating, for evaluating signal quality, tuning Supports wireless parameter configuration, by sending wireless /data packet, remotely configure or retrieve the module parameter Supports fixed-point transmission, broadcast, signal channel monitor for Standard 40PIN GPIO extension header, supports series boards Onboard CP2102 USB TO UART converter, for serial debugging Brings the UART control interface, for connecting host boards like /STM32 4x LED indicators, easy to check the module status LoRa spread spectrum modulation technology, up to 81 available signal channel, longer communication distance, more robust to interference Auto multi-level repeating, suit for ultra long range communication, allows multi network on the same region Low power consumption features like deep sleeping and Wake on Radio, Perfect for battery-powered applications Customizable communication key which 't be retrieved, greatly improves the security of user data Material:PCB colour:blue Package Contents: 4 x SX1262 915M LoRa HAT 4 x USB type A plug to micro-plug cable 4 x 915MHz antenna Only the above package content, other products are not included. 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.