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可用于于屋内气体的侦测,以防瓦斯外泄造成意外.可透过LoRa的长距离功能来传送讯号于屋内 Lora Home Gateway并发报至屋主手机
MQ- 2气体传感器所使用的气敏材料是在清洁空气中电导率较低的二氧化锡(SnO2)， 当传感器所处环境中存在可燃气体时，传感器的电导率随空气中可燃气体浓度的增加而增大. LoRa +气体侦测(GAS SENSOR)模块可用于(液化氧、丁烷、丙烷、甲烷、酒精、氢气)侦测.由于LoRa高穿透能力,以及低耗电量,可用于高楼成的管理以及较大的空间.
SX1276(Node)特点: LoRaTM Modem 168 dB maximum link budget +20 dBm - 100 mW constant RF output vs. V supply +14 dBm high efficiency PA Programmable bit rate up to 300 kbps High sensitivity: down to -148 dBm Bullet-proof front end: IIP3 = -11 dBm Excellent blocking immunity Low RX current of 9.9 mA, 200 nA register retention Fully integrated synthesizer with a resolution of 61 Hz FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulatio Built-in bit synchronizer for clock recovery Preamble detection 127 dB Dynamic Range RSSI Automatic RF Sense and CAD with ultra-fast AFC Packet engine up to 256 bytes with CRC Built-in temperature sensor and low battery indicator
原文作者：S的深V
