一个完整的用51单片机控制温度传感器采集并显示的程序,温度传感器选用DS18B20,显示器为1602-An integrated temperature sensor with 51 control procedures for collecting and display, temperature sensor selection DS18B20, display for the 1602
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001355s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.131936s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.155322s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.045088s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.017611s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.020439s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.047501s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.019999s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.031628s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.024857s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 158659 [ RunTime:0.829270s ]