So I do a small test just to see whether the circuit is working.
下面我来做个小测试，保证线路确实在正常工作。
The circuit is simple, debugging easy and working stable.
电路简单、调试容易、工作稳定。
Working theory, hardware circuit and the software system are included in this paper.
包括工作原理、系统软硬件设计。
Working theory, hardware circuit and the software system are included in this paper.
包括工作原理、系统软硬件设计。
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