No longer let you return, the remote mailbox notification device diy is based on WiFi Lora 32. Is there any meaning?

Walking in the rain to the community email and finds no email - this is the reality of people in the northwest Pacific life. What if you have something you have your own email? If we put a small device to detect the arrival of the mail and inform the user, is that it would be great? This is a project of self-improvement education, because I am a newbie in terms of electronics, radio, etc. This also means that because I don't know much about physical law, some ideas may be incapable. My current idea is to simply feel the increase in brightness (someone turns on the mailbox) as the delivery agent, and Lora sends event notifications. I have seen it before trying to use more complex methods or even SIM cards to make commercial electronic projects to try, but I think this too much. I want simple things. Moreover, it may be cheaper. Items needed device: 2 × WiFi Lora 32 (V2) 1 × GY-30 sensor This is just the beginning of the project experiment. I took two Heltec WiFi Lora Devkit, solder some pins on one, and then connect it to the GY-30 sensor (a long time ago, the pin is welded on one side! Haha). Then I wrote some fast and redundant code that constantly read brightness from the sensor and transmits it as a packet through the low-level LORA. Another Lora Devkit without a sensor just reads anything received from the first devkit and displays it. This is what you see in the video (some blur) below. Secondary Lora on the left. Please ignore this messy flying line, which is completely concept, in order to quickly implement! Be Be After completing this work, I decided to read more about Lorawan, unfortunately, start this at 10:00, is an error! When I start understanding its highest level of properties, I finally try to find a gateway around, join TTN and figure out whether there is any gateway in a reasonable distance (see if there is no gateway). I am in Maple Ridge, British Columbia, Canada, it seems that I am at least 18 kilometers from the Signal Port of the Signal Port. So this let me start thinking, should the mailbox notice be dependent on the Lorawan Gateway? These things are not particularly cheap. What is the meaning of both? If you are unable to join the network, you only need to assume that there is no network and broadcast signals, and there is a receiving device nearby. What do you think? Be Circuit City original compilation, translated from HackADAY, please indicate the source!

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