Smart Home Circuit Solution - Build a low-cost Lorawan Gateway with Raspberry Pisero

Multi-channel LORA gateway devices are very expensive, so competition between various suppliers is not too intense. When Rak Wireless announces that when the Rak831 development board, I want to use it with the Raspberry Zero DIY to be used for smart home projects. Cost Lorawan Gateway. Supplement knowledge: What is LORA? Lora is a wireless standard for the low-power bureau network created by Semtech. It is generally difficult to cover a long distance. The long distance is generally consumed. If you want to be far from grazing, you have to run far, it seems difficult to do. The name of the LORA is a long-distance radio. Its biggest feature is the distance from the same power consumption than other wireless mode, which realizes low-power and long-distance unity. It is in the same work. The distance is 3-5 times higher than the traditional wireless radio frequency communication distance. LORA features Transmission distance: Town can reach 2-5 km, the suburbs can reach 15 km. Working frequency: ISM band includes 433, 868, 915 MH, and the like. Standard: IEEE 802.15.4g. Modulation method: A variant based on spread spectrum technology, linear modulation spread spectrum (CSS), has forward error correction (FEC) capabilities, Semtech private patented technology. Capacity: A LORA gateway can be connected to thousands of LORA nodes. Battery life: up to 10 years. Security: AES128 encryption. Transmission rate: hundreds to dozens of kbps, the lower the rate, the longer the transmission distance, this is like a person picking things, there is not much way to pick, less, you can walk away. Lora and Lorawan Lora and Lorawan are easily confused. Lora is a subset of Lorawan, and Lora includes only physical layer definitions, and LoraWan also includes a link layer.

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