1. Don't say the first sentence: Give a code! You should think about why. When you think about it and refer to someone else's tips, you know the difference between yourself and others.
2, beginners please do not read too many books, it will be wrong. First look for a good book system to learn, many people have used it for a long time is only familiar with some functions, not system is not enough.
3, look at the datasheet (data manual) and user guide (user guide), do not because it is difficult, but they are beginners so they do not look; datasheet is always the best reference manual, although its text is sometimes difficult to understand Or not intuitive enough.
4. Don't be confused by some special words. The most fundamental thing is to understand the most basic knowledge.
5, don't let go of any small problem that seems very simple - they are often not so simple, or can lead to a lot of knowledge points; will not give you a rule, you will never learn.
6. Don't think that you know something when you know something. This doesn't mean that you will use it. It will take practice and time to accumulate.
7, do not give up, entry is not difficult, rare is long-term practice and spare no effort to learn and practice.
8. Don't just read a book. If you read more books, you won't use it. You should practice more and do more.
9, don't always put fashionable technology on your lips, it is better to keep the basic technology in mind.
10. Don't think that the book in your hand is enough at any time.
Three must:
1. You must read the manual of the chip and read the timing. Focus!
2, must be hands-on to practice, the reading of books is not suitable for technology.
3. Must understand and use the bus: SPI, I2C, UART. Will use AT24C0X, DS18B20, it is almost, serial communication is strongly recommended. 
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