TY - JOUR T1 - Design of Stopwatch based on STC89C52 Single Chip Microcomputer JO - Journal of Current Scientific Research VL - 1 IS - 4 SP - 1 EP - 8 PY - 2022/4// T2 - AU - Wei, Wang AU - Yongjian, Sun SN - 2766-8681 DO - https://doi.org/10.14302/issn.2766-8681.jcsr-22-4126 UR - http://jphi-healthcarejournals.netjcsr/article/1790 KW - Microcomputer KW - LED KW - Proteus ER -