{"id":1366,"date":"2020-09-28T17:15:38","date_gmt":"2020-09-28T09:15:38","guid":{"rendered":"https:\/\/www.block.tw\/blog\/?p=1366"},"modified":"2021-04-01T14:30:25","modified_gmt":"2021-04-01T06:30:25","slug":"arduino-analog-io","status":"publish","type":"post","link":"https:\/\/www.block.tw\/blog\/arduino-analog-io\/","title":{"rendered":"Arduino \u985e\u6bd4I\/O\u51fd\u5f0f"},"content":{"rendered":"\n

analogRead(<\/span>pin<\/span>)<\/span><\/h3>\n\n\n\n

\u5f9e “\u985e\u6bd4\u63a5\u8173” \u8b80\u53d6\u985e\u6bd4\u96fb\u58d3\u8f49\u63db\u6210\u6578\u4f4d\u6578\u503c\u4e26\u56de\u50b3\u3002\u5927\u90e8\u4efd\u7684 Arduino \u677f\u662f10\u4f4d\u5143 \u985e\u6bd4\u6578\u4f4d\u8f49\u63db\uff0c”\u985e\u6bd4\u63a5\u8173” \u8f38\u5165\u96fb\u58d3\u7bc4\u570d\u70ba 0~(5V or 3.3V)\u8f49\u63db\u6210 0~1023\u3002\u985e\u6bd4\u96fb\u58d3\u8f38\u5165\u7bc4\u570d\u53ef\u4ee5\u7528 analogReference() \u51fd\u5f0f\u4f86\u6539\u8b8a \uff0c\u6bcf\u6b21\u985e\u6bd4\u6578\u4f4d\u8f49\u63db\u7684\u901f\u5ea6 \u5927\u7d04\u662f 100ms\uff0c\u6bcf\u79d2\u5927\u7d04\u53ef\u4ee5\u8f49\u63db 10,000\u6b21<\/p>\n\n\n\n

\u53c3\u6578<\/h3>\n\n\n\n

pin<\/span>\uff1a\uff08\u5927\u90e8\u4efd\u7684\u677f\u5b50A0~A5\uff0cMKR\u677f A0 to A6 \uff0cMini\u677f Nano\u677f A0 to A7\uff0cMega \u677f A0 to A15\uff09<\/p>\n\n\n\n

\u56de\u50b3<\/h3>\n\n\n\n

\u56de\u50b3 int \u578b\u614b\u7684\u6578\u503c 0~1023<\/p>\n\n\n\n

\u7bc4\u4f8b<\/h3>\n\n\n\n
VR = analogRead(A0);   \/\/\u8b80\u53d6A0\u8173\u4e26\u985e\u6bd4\u6578\u4f4d\u8f49\u63db\u5f8c\u6307\u5b9a\u7d66 VR \u9019\u500b\u8b8a\u6578  <\/code><\/pre>\n\n\n\n
\n\n\n\n
analogWrite(<\/span>pin<\/span>, <\/span>value<\/span>)<\/span><\/h3>\n\n\n\n
\u4ee4 Arduino pin<\/span> \u63a5\u8173\u8f38\u51fa\u5de5\u4f5c\u9031\u671f\u70ba [value<\/span> \/ 255] \u00d7100% PWM\u65b9\u6ce2\u3002(\u8a3b\uff1a\u4f7f\u7528 digitalRead()\u3001dititalWrite() \u5c0d\u76f8\u540c\u7684 pin<\/span> \u52d5\u4f5c\u6642\uff0c\u6703\u4e2d\u65b7\u8a72\u8173PWM\u8f38\u51fa)<\/p>\n\n\n\n
\u53c3\u6578<\/h3>\n\n\n\n
pin<\/span>\uff1a\u4e26\u4e0d\u662f\u6240\u6709 Arduino \u63a5\u8173\u90fd\u53ef\u4ee5\u8f38\u51faPWM\u65b9\u6ce2\uff0c\u53ea\u6709\u63a5\u8173\u6709 ~<\/span> \u7b26\u865f\u7684\u624d\u53ef\u4ee5\u3002Uno\u677f\u3001Nano\u677f\u3001Mini\u677f\u53ef\u4ee5 PWM \u8f38\u51fa\u7684\u63a5\u8173 3, 5, 6, 9, 10, 11\uff0c3,9,10,11\u8173 PWM \u983b\u7387  490 Hz\uff0c5,6\u8173 PWM \u983b\u7387 980 Hz\u3002
value<\/span>\uff1a 0~255\uff0c0 \u4e00\u76f4\u8f38\u51fa\u4f4e\u96fb\u58d3\uff0c255\u4e00\u76f4\u8f38\u51fa\u9ad8\u96fb\u58d3\u3002<\/p>\n\n\n\n
\u56de\u50b3<\/h3>\n\n\n\n
\u7121<\/p>\n\n\n\n
\u7bc4\u5217<\/h3>\n\n\n\n
analogWrite(3,127);  \/\/\u4ee4 arduino 3 \u8173\u8f38\u51fa PWM \u65b9\u6ce2\uff0c\u5de5\u4f5c\u671f\u671f = 127\/255\u00d7100% \u7d0450%<\/code><\/pre>\n\n\n\n
\n\n\n\n
\u5165\u9580<\/div><\/span>
\u77e5\u8b58<\/div><\/span>
\u8a9e\u6cd5<\/div><\/span>
\u6d41\u7a0b<\/div><\/span>
\u51fd\u5f0f<\/div><\/span>
\u5be6\u7fd2<\/div><\/span><\/div>
Arduino \u7c21\u4ecb<\/a>
\u6e96\u5099\u4f60\u7684 Arduino \u958b\u767c\u5de5\u5177<\/a>
\u6e96\u5099\u4f60\u7684 ESP12E\/F \u958b\u767c\u5de5\u5177<\/a>
Arduino Uno \u786c\u9ad4<\/a>
Arduino nano \u786c\u9ad4<\/a>
ESP-12F(ESP8266)\u786c\u9ad4<\/a>
Arduino \u7a0b\u5f0f\u8a9e\u6cd5<\/a>
\u532f\u5165 zip \u7a0b\u5f0f\u5eab<\/a> 
<\/p><\/div><\/div><\/div>
\u99dd\u5cf0\u5f0f\u547d\u540d\u6cd5<\/a>
UART \u4e32\u5217\u901a\u8a0a<\/a> 
PWM\u63a7\u5236<\/a>
\u9375\u76e4\u6383\u63cf<\/a>
ThingSpeak \u96f2\u7aef\u8cc7\u6599\u5eab \u5e33\u865f\u7533\u8acb<\/a>
ThingSpeak \u96f2\u7aef\u8cc7\u6599\u5eab \u8a2d\u5b9a<\/a><\/p><\/div><\/div><\/div>
Arduino \u9032\u5236\u8868\u793a<\/a>
Arduino \u9663\u5217<\/a>
Arduino \u5e38\u6578\u8207\u8b8a\u6578<\/a>

Arduino \u7b97\u6578\u904b\u7b97\u5b50<\/a>
Arduino \u8907\u5408\u904b\u7b97\u5b50<\/a>
Arduino \u5e03\u6797\u904b\u7b97\u5b50<\/a>
Arduino \u6bd4\u8f03\u904b\u7b97\u5b50<\/a>

Arduino IDE \u932f\u8aa4\u8a0a\u606f<\/a><\/p><\/div><\/div><\/div>
Arduino for \u8ff4\u5708<\/a>
Arduino if \u689d\u4ef6\u5224\u65b7<\/a>
Arduino switch \u9078\u64c7\u6307\u4ee4<\/a>
Arduino while \u8ff4\u5708<\/a>
Arduino do while \u8ff4\u5708<\/a><\/p><\/div><\/div><\/div>
Arduino \u6578\u4f4dI\/O\u51fd\u5f0f<\/a>
Arduino \u985e\u6bd4I\/O\u51fd\u5f0f<\/a>
Arduino \u6642\u9593\u51fd\u5f0f<\/a>
Arduino \u6578\u5b78\u51fd\u5f0f<\/a>
Arduino \u901a\u8a0a\u7269\u4ef6\u51fd\u5f0f<\/a>
Arduino \u767c\u97f3\u51fd\u5f0f<\/a>
Arduino \u81ea\u5b9a\u51fd\u5f0f<\/a><\/p><\/div><\/div><\/div>
Arduino \u8f38\u51fa\u5be6\u7fd2<\/a>(\u55ae\u71c8\u9583\u720d)
Arduino \u8f38\u51fa\u5be6\u7fd2<\/a>(\u8dd1\u99ac\u71c8-\u611a\u516c\u79fb\u5c71)
Arduino \u8f38\u51fa\u5be6\u7fd2<\/a>(\u8dd1\u99ac\u71c8-for\u8ff4\u5708)
Arduino \u6578\u4f4d\u8f38\u5165\u5be6\u7fd2<\/a>
Arduino \u6578\u4f4d\u8f38\u5165\u5be6\u7fd2(INPUT_PULLUP)<\/a>
Arduino \u985e\u6bd4\u8f38\u5165\u5be6\u7fd2<\/a>
Arduino PWM <\/a>\u5be6\u7fd2<\/a> (\u547c\u5438\u71c8)
 Arduino PWM \u5be6\u7fd2<\/a> (\u5149\u611f\u61c9\u8abf\u5149\u71c8) 
Arduino 8×8 LED Matrix MAX7219 \u5be6\u7fd2<\/a> 
Arduino \u7d05\u7da0\u71c8\u5c0f\u7da0\u4eba \u5be6\u7fd2<\/a> 
Arduino \u8a08\u6642\u5668 \u5be6\u7fd2<\/a>
Arduino \u97f3\u6a02\u76d2<\/a>
Arduino \u96fb\u5b50\u7434(\u9375\u76e4\u6383\u63cf)<\/a>
Arduino DHT11 \u6eab\u6fd5\u5ea6\u611f\u61c9\u5668<\/a>
Arduino OLED \u986f\u793a<\/a>
Arduino \u8d85\u97f3\u6ce2\u6e2c\u8ddd\u6a21\u7d44 HC-SR04<\/a><\/span>
Arduino \u57f7\u884c\u6642\u9593\u5be6\u7fd2<\/a>
Arduino \u96fb\u5bb9\u6e2c\u8a66\u5668<\/a>
Arduino \u7d05\u5916\u7dda\u63a5\u6536\u5be6\u7fd2<\/a>
Arduino \u7d05\u5916\u7dda\u767c\u5c04\u5be6\u7fd2 EPSON \u6295\u5f71\u6a5f\u63a7\u5236 <\/a>
ESP-12F \u7db2\u8def\u667a\u6167\u958b\u95dc(MQTT)<\/a>
ESP-12F \u96f2\u7aef\u8a18\u9304\u578b K-Type \u6eab\u5ea6\u8a08(MQTT  ThingSpeak)<\/a>
ESP-12F \u624b\u6a5f\u96f2\u7aef\u7d05\u5916\u7dda\u63a7\u5236<\/a>
ESP-12F \u7db2\u8def\u96fb\u53f0\u6536\u97f3\u6a5f<\/a>
ESP-12F \u96fb\u5b50\u9f13<\/a><\/p><\/div><\/div><\/div><\/div><\/div><\/div><\/section>\n","protected":false},"excerpt":{"rendered":"
analogRead(pin) \u5f9e “\u985e\u6bd4\u63a5\u8173” \u8b80\u53d6\u985e\u6bd4\u96fb\u58d3\u8f49\u63db\u6210\u6578\u4f4d\u6578\u503c\u4e26\u56de\u50b3\u3002\u5927… 
 Read more<\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[58,3],"tags":[49,15],"class_list":["post-1366","post","type-post","status-publish","format-standard","hentry","category-function","category-mcu","tag-analog","tag-arduino"],"gutentor_comment":0,"featured_image_urls":{"full":"","thumbnail":"","medium":"","medium_large":"","large":"","1536x1536":"","2048x2048":"","post-thumbnail":"","mesmerize-full-hd":""},"post_excerpt_stackable":"
analogRead(pin) \u5f9e “\u985e\u6bd4\u63a5\u8173” \u8b80\u53d6\u985e\u6bd4\u96fb\u58d3\u8f49\u63db\u6210\u6578\u4f4d\u6578\u503c\u4e26\u56de\u50b3\u3002\u5927\u90e8\u4efd\u7684 Arduino \u677f\u662f10\u4f4d\u5143 \u985e\u6bd4\u6578\u4f4d\u8f49\u63db\uff0c”\u985e\u6bd4\u63a5\u8173” …<\/p>\n","category_list":"Arduino \u51fd\u5f0f<\/a>, \u5fae\u8655\u7406\u6a5f<\/a>","author_info":{"name":"mcu","url":"https:\/\/www.block.tw\/blog\/author\/mcu\/"},"comments_num":"0 comments","featured_image_urls_v2":{"full":"","thumbnail":"","medium":"","medium_large":"","large":"","1536x1536":"","2048x2048":"","post-thumbnail":"","mesmerize-full-hd":""},"post_excerpt_stackable_v2":"
analogRead(pin) \u5f9e “\u985e\u6bd4\u63a5\u8173” \u8b80\u53d6\u985e\u6bd4\u96fb\u58d3\u8f49\u63db\u6210\u6578\u4f4d\u6578\u503c\u4e26\u56de\u50b3\u3002\u5927\u90e8\u4efd\u7684 Arduino \u677f\u662f10\u4f4d\u5143 \u985e\u6bd4\u6578\u4f4d\u8f49\u63db\uff0c”\u985e\u6bd4\u63a5\u8173” …<\/p>\n","category_list_v2":"Arduino \u51fd\u5f0f<\/a>, \u5fae\u8655\u7406\u6a5f<\/a>","author_info_v2":{"name":"mcu","url":"https:\/\/www.block.tw\/blog\/author\/mcu\/"},"comments_num_v2":"0 comments","_links":{"self":[{"href":"https:\/\/www.block.tw\/blog\/wp-json\/wp\/v2\/posts\/1366","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.block.tw\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.block.tw\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.block.tw\/blog\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.block.tw\/blog\/wp-json\/wp\/v2\/comments?post=1366"}],"version-history":[{"count":16,"href":"https:\/\/www.block.tw\/blog\/wp-json\/wp\/v2\/posts\/1366\/revisions"}],"predecessor-version":[{"id":1643,"href":"https:\/\/www.block.tw\/blog\/wp-json\/wp\/v2\/posts\/1366\/revisions\/1643"}],"wp:attachment":[{"href":"https:\/\/www.block.tw\/blog\/wp-json\/wp\/v2\/media?parent=1366"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.block.tw\/blog\/wp-json\/wp\/v2\/categories?post=1366"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.block.tw\/blog\/wp-json\/wp\/v2\/tags?post=1366"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}