说明：  Proteus 是一款非常不错的单片机模拟软件。虽然电子模拟软件不少，但是 能很好的模拟单片机的只有proteus 软件。该软件能模拟 51 单片机，avr 单片机，pic 单片机，以及部分arm 芯片。支持的外围器件也很多包括 A/d,LCD,LED 数码管，温度，时钟等芯片。对初学者来说，是非常好的入门 工具。
(Proteus is a very good single-chip simulation software. Although a number of electronic simulation software, but can be a very good simulation of the only single-chip software proteus. The software can simulate the 51 single-chip, avr single-chip, pic microcontroller, as well as some arm chip. Support many peripheral devices including A/d, LCD, LED digital tube, temperature, and so on-chip clock. For beginners, it is a very good starter kit.)