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Semtech LoRa 长距离无线技术由S76S LoRa Board连接Rain sensor 设计用在水滴雨水监测及通知. 可应用在水管管路监测是否管路老旧泄漏以及是否遭到破坏而泄漏.减少人员巡查的时间,可以达到预警以及关断传输管线,可减低用水流失可减少不必要的量废及流失.
使用 LoRa 长距离无线技术 1. 可长距离监测水管管线是否泄漏以及是否遭到人为损坏导致泄漏 2. 可以提早防范以及关断处理及修整处理.
1. Chipset: STM32L073xZ and SX1276 2. High performance ARM® Cortex® -M0+ 32-bit RISC core operating at a 32 MHz frequency 3. Embedded memories (up to 192 Kbytes of Flash memory and 20 Kbytes of RAM) 4. LoRa Modem 5. +20 dBm constant RF output vs. V supply 6. Programmable bit rate up to 300 kbps 7. High sensitivity: down to -137 dBm 8. Excellent blocking immunity 9. FSK, GFSK, MSK, GMSK, LoRa and OOK modulation 10. Packet engine up to 256 bytes with CRC 11. Epoxy molding finished module in LGA type 12. Small footprint:13 mm x 11 mm x 1.1 mm
原文作者:Daniel