测试是在EL-MUT-III实验箱或者EL-8051-III实验箱上用8051单片机系统进行的。 将模块正确安装在实验箱的外扩模块插槽上。-Testing in the experimental box on the EL-the MUT-III test box or EL-8051-III 8051 system. The module is installed correctly in the external expansion module slots on the exper