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Today, I will guide you through the process of a first-round interview for embedded engineers and the common questions asked.
1First, introduce yourself
It is important to highlight your project experience during the self-introduction. This part is crucial as many subsequent questions will be based on it. For example, you could say: In the first three years of my career, I worked on the secondary development of IoT WIFI modules, responsible for connecting different cloud platforms, and then developed IoT solutions for several years.
2Introduce the MQTT protocol and its related content
Since the self-introduction mentioned IoT development with WIFI modules, the interviewer will immediately start asking questions related to IoT protocols.
3Why choose the MQTT protocol?
What are the advantages of the MQTT protocol compared to other protocols?
4Introduce common network configuration methods?
5Introduce the development framework of a connected cloud project?
6Introduce I2C communication?
Here, follow-up questions may include multi-slave communication and how to confirm the address of the slave device to be accessed.
7Introduce the distribution of variables in memory in Keil?
8Introduce byte alignment methods?
9Introduce dangling pointers?
10Introduce RTOS communication methods?
11What is priority inversion, and how can it be resolved?
12How to analyze and solve a system crash issue that occurs after running for a period of time?
13What is the most complex problem you encountered in past projects, and how did you solve it?
Here, you can prepare by paying attention to tricky problems encountered at work, even if they were solved by others; if you understand them, you can discuss them.
14Do you have any questions you would like to ask?
Here, you can briefly ask about the specific responsibilities of the position and the team members. etc.
01Summary
Today, the focus was on sharing the interview process and common interview questions for embedded engineers. I encourage everyone to think about the answers to these questions. This Friday, I will share my answers in the group for reference. Interested friends can join the group to discuss the pitfalls encountered in interviews over the years.
QQ group: 573122190 (Note: IoT project discussion)