With 12 LED digital display, can show the tube voltage, current and count value.
具有12位LED数码管显示，可分别显示电压、电流、计数值。
2
Tube plate method, tube dilution method and viable count method were used to determine the inhibitory activity of traditional Chinese medicine injection in vitro, such as Houttuynia Cordata Thunb etc.
SCM experiment C source code external interruption, two experiments: 1, outside interrupt count two digital tube display 2 and external interruption counter.