实现智能数字显示仪表。要求8位数码管显示（4位显示测量值，4位显示设定值），4输入按钮（功能选择、数码管选择、数字增加、数字减少），可设定上下限报警（蜂鸣器报警）。适配E型（镍铬-铜镍）热电偶，测温范围为0℃~700℃。-Intelligent digital display instrument. Requires 8-bit digital display (4-digit display of measured values, four display settings), 4 input buttons (function selection, the digital selection, number increase, decrease), upper and lower limits can be set to alarm (buzzer alarm .) Adapter E-type (nickel-chromium- copper-nickel) thermocouple, temperature range is 0 ℃ ~ 700 ℃.