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LoRa 무선 모듈: 환경 모니터링 파워 미터 리딩 RS232 \ 485 \ TTL 무선 투명 전송
1. summary:
HD-M805It is a high speed, low power consumption and high performance wireless module（Hereinafter referred to as module），The module design is efficientISMFrequency band RFLoraSpread spectrum chip，Provides multiple channel options。Module can modify serial port Rate Online，Transmission power，Various parameters such as RF rate。HD-M805 Module can transparently transfer any size of data，Users do not need to write complex settings and transmission programs。Small module size，Support wide voltage operation；Long transmission distance，Provide rich and convenient software programming functions，It is widely used。Support low power saving mode，Battery powered occasion,Section 13.6V/3.6AHBattery can work more than10year。
2. Product picture and appearance dimension
Figure 1 Product picture and dimension drawing
3. Functional features：
Module communication mode is(Wireless serial portUART)Transparent transmission；No agreement required，Can be replaced directlyRS232/RS485The application of wired connection，Saving wire cost。Support low power saving mode，Battery powered occasion,Section 13.6V/3.6AHBattery can work more than10year。
4. performance index :
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5. Application Overview:
l Wireless meter reading watt-hour meter,Water meter,Gas meter
l Vehicle ramp control，monitor
l Automation and security of building community，Access control，Cell paging
l Wireless label，Identification，Non contactRFsmart card
l Internet of things Wireless sensor WSN
l Home automation
l Automatic data collection
l Industrial and power remote control、telemetering,wirelessRS232/485data acquisition
l Wireless Barcode gun
l POSsystem，asset management
l Robot control
l meteorological，remote sensing
l Wireless caller，Order machine
l Wireless light control
l Urban street lamp monitoring
6. Interface definition:
Pin definition drawing
HD-M805 Module co ownership7Pin, 2Locating holes，The specific definitions are as follows：
HD-M805 Pin definition
notes：The first4、5Foot Mo thinksTTLInterface，OptionalRS232(4-RX；5-TX)、RS485(4-B；5-A)Interface。
7.Electrical characteristics:
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Typical application scenarios：
Origin : Mainland China
