We started the IOT project again.

I have been working on the IOT project since I graduated from graduate school. I know that I have recently started an Iot project. I haven't done it for three years and have developed many new technologies, the new standard makes me a little unable to catch up, and I have forgotten what I learned before. However, I should take some time to check whether it can be picked up soon.

During such a project, I always like to study technical details, such as route request and route reply. The two commands do not contain the path information. How can the final node return along the path? After studying spec, I finally understood the details. In addition, the path cost is not obtained when the route request is sent, but is calculated when the neighour discovery, only when you get the route request, you can directly use the previous technology.

However, when you are working on a project, you may not need to understand these details. The time is limited. If you study deeply, you will not have time to study other content, therefore, we should always focus on the overall situation.

I recently rented a 100-level house, and the rent is very expensive. It's almost 5 K, but it's nice to live in a great house.