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esp32 引脚用法

分类：基础知识篇 >> ESP32基础知识发布于 2024-05-16 375次阅读0点赞0收藏

简单说明烧录相关的，最好不要动了，

1 3 串口 0 boot 2似乎是en，所以烧录接线的话，最好留着VCC GND加 0123 四个pin，
6到11 pin 几乎任何板子都用不了，别想了兄弟
还有部分特殊的，比如没有20，24，28，29，30，31，37，38，这些基本也不能用，似乎被模组占用了
16 17 特殊，如果是带psram的，就不能用
那么可用的Pin到底是多少个呢？
算上烧录，26个，其实还是有点紧张的哈。

补充图：

重点看rtc gpio 这些是可以唤醒睡眠的引脚哦

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CONNECT:[ UseTime:0.000563s ] mysql:host=127.0.0.1;port=3306;dbname=mpyos_n;charset=utf8
SHOW FULL COLUMNS FROM `ls_goods_category` [ RunTime:0.000716s ]
SELECT `id`,`name`,`pid`,`image`,`level`,`is_show`,`is_recommend`,`remark`,`list` FROM `ls_goods_category` WHERE `is_show` = 1 AND `del` = 0 AND `level` = 1 ORDER BY `id` ASC,`sort` DESC [ RunTime:0.000450s ]
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SHOW FULL COLUMNS FROM `ls_nav` [ RunTime:0.000577s ]
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SHOW FULL COLUMNS FROM `ls_help` [ RunTime:0.000447s ]
SELECT COUNT(*) AS think_count FROM `ls_help` `a` INNER JOIN `ls_help_category` `c` ON `c`.`id`=`a`.`cid` WHERE ( `a`.`del` = '0' AND `a`.`is_show` = '1' AND `c`.`del` = '0' AND `c`.`is_show` = '1' ) ORDER BY `a`.`id` DESC LIMIT 1 [ RunTime:0.000406s ]
SHOW FULL COLUMNS FROM `ls_goods` [ RunTime:0.000608s ]
SELECT * FROM `ls_goods` WHERE `id` = 116 AND `status` = 1 LIMIT 1 [ RunTime:0.000477s ]
UPDATE `ls_goods` SET `click_count` = 375 , `update_time` = 1757123140 WHERE `id` = 116 [ RunTime:0.000353s ]
SHOW FULL COLUMNS FROM `ls_goods_collect` [ RunTime:0.000484s ]
SELECT * FROM `ls_goods_collect` WHERE `user_id` = 2 AND `goods_id` = 116 LIMIT 1 [ RunTime:0.000304s ]
SHOW FULL COLUMNS FROM `ls_goods_like` [ RunTime:0.000418s ]
SELECT * FROM `ls_goods_like` WHERE `user_id` = 2 AND `goods_id` = 116 LIMIT 1 [ RunTime:0.000306s ]
SHOW FULL COLUMNS FROM `ls_goods_click` [ RunTime:0.000374s ]
INSERT INTO `ls_goods_click` SET `user_id` = 2 , `goods_id` = 116 , `create_time` = 1757123140 [ RunTime:0.001425s ]
SELECT * FROM `ls_goods` WHERE `id` = 117 AND `status` = 1 LIMIT 1 [ RunTime:0.000915s ]
SELECT `id`,`name` FROM `ls_goods_category` WHERE `id` = 1 LIMIT 1 [ RunTime:0.000290s ]
SELECT `id`,`name` FROM `ls_goods_category` WHERE `id` = 2 LIMIT 1 [ RunTime:0.000244s ]
SELECT * FROM `ls_goods` WHERE `del` = 0 AND `status` = 1 AND `create_time` <= 1757123080 ORDER BY `create_time` DESC LIMIT 3 [ RunTime:0.001123s ]
SELECT * FROM `ls_goods` WHERE `del` = 0 AND `status` = 1 AND `create_time` <= 1757123080 ORDER BY `click_count` DESC LIMIT 3 [ RunTime:0.001124s ]

0.037250s

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esp32 引脚用法

简单说明烧录相关的，最好不要动了，

补充图：

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