https://blog.csdn.net/chuannaoxuan4674/article/details/101048391?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522163356631416780274183934%2522%252C%2522scm%2522%253A%252220140713.130102334…%2522%257D&request_id=163356631416780274183934&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2allsobaiduend~default-5-101048391.pc_search_es_clickV2&utm_term=ds1307&spm=1018.2226.3001.4187
Arduino版简单的DS1307程序
https://blog.csdn.net/claria029/article/details/118692650?ops_request_misc=&request_id=&biz_id=&utm_medium=distribute.pc_search_result.none-task-blog-2alles_rank~default-5-118692650.pc_search_es_clickV2&utm_term=%E5%85%A8BCD%E7%A0%81%E6%97%B6%E9%92%9F%E6%97%A5%E5%8E%86&spm=1018.2226.3001.4187
