{"id":34426,"date":"2023-04-21T22:55:47","date_gmt":"2023-04-22T03:55:47","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-to-make-a-sonar-device-at-home\/"},"modified":"2025-01-21T03:36:48","modified_gmt":"2025-01-21T08:36:48","slug":"how-to-make-a-sonar-device-at-home","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/ko\/how-to-make-a-sonar-device-at-home\/","title":{"rendered":"\uc9d1\uc5d0\uc11c \ub9cc\ub4dc\ub294 \ucd08\uc74c\ud30c \uc18c\ub098 \uc7a5\uce58 \uc81c\uc791 \uac00\uc774\ub4dc"},"content":{"rendered":"<p>\uc9d1\uc5d0\uc11c \uc18c\ub098 \uc7a5\uce58\ub97c \ub9cc\ub4dc\ub294 \uac83\uc740 \uc0dd\uac01\ubcf4\ub2e4 \ubcf5\uc7a1\ud558\uba70, \uc644\ubcbd\ud55c \uc131\ub2a5\uc744 \uae30\ub300\ud558\uae30\ub294 \uc5b4\ub835\uc2b5\ub2c8\ub2e4. \ud558\uc9c0\ub9cc \uae30\ubcf8\uc801\uc778 \uc6d0\ub9ac\ub97c \uc774\ud574\ud558\uace0 \uac04\ub2e8\ud55c \uc7a5\uce58\ub97c \uc81c\uc791\ud574\ubcf4\ub294 \uac83\uc740 \ud765\ubbf8\ub85c\uc6b4 \uacbd\ud5d8\uc774 \ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uae00\uc5d0\uc11c\ub294 \ucd08\uc74c\ud30c \uc13c\uc11c\ub97c \uc774\uc6a9\ud558\uc5ec \uae30\ubcf8\uc801\uc778 \uc18c\ub098 \uc7a5\uce58\ub97c \ub9cc\ub4dc\ub294 \ubc29\ubc95\uc744 \ub2e8\uacc4\ubcc4\ub85c \uc124\uba85\ud558\uace0, \uac01 \ub2e8\uacc4\uc5d0\uc11c \ud544\uc694\ud55c \ubd80\ud488\uacfc \uc8fc\uc758\uc0ac\ud56d\uc744 \uc790\uc138\ud788 \uc548\ub0b4\ud569\ub2c8\ub2e4.  \uc774\ub97c \ud1b5\ud574 \uc18c\ub098\uc758 \uc791\ub3d9 \uc6d0\ub9ac\ub97c \uc774\ud574\ud558\uace0 \uc9c1\uc811 \uc81c\uc791\ud574\ubcf4\ub294 \uacbd\ud5d8\uc744 \uc81c\uacf5\ud558\uace0\uc790 \ud569\ub2c8\ub2e4.<\/p>\n<h3>\ud544\uc694\ud55c \ubd80\ud488<\/h3>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>\ubd80\ud488<\/th>\n<th>\uc124\uba85<\/th>\n<th>\ube44\uace0<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\uc544\ub450\uc774\ub178 \uc6b0\ub178 (\ub610\ub294 \ud638\ud658 \ubcf4\ub4dc)<\/td>\n<td>\ub9c8\uc774\ud06c\ub85c\ucee8\ud2b8\ub864\ub7ec<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>\ucd08\uc74c\ud30c \uc13c\uc11c (HC-SR04 \ub4f1)<\/td>\n<td>\uac70\ub9ac \uce21\uc815<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>\uc810\ud37c \uc640\uc774\uc5b4<\/td>\n<td>\uc5f0\uacb0<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>\ube0c\ub808\ub4dc\ubcf4\ub4dc<\/td>\n<td>\ud68c\ub85c \uad6c\uc131<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>\uc804\uc6d0 (USB \ucf00\uc774\ube14 \ub4f1)<\/td>\n<td>\uc804\uc6d0 \uacf5\uae09<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>\uc18c\ud615 \uc2a4\ud53c\ucee4 \ub610\ub294 \ubd80\uc800<\/td>\n<td>\uc18c\ub9ac \ucd9c\ub825<\/td>\n<td>\uc635\uc158<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\ud68c\ub85c \uad6c\uc131<\/h3>\n<p>\ucd08\uc74c\ud30c \uc13c\uc11c\uc758 VCC\ub97c \uc544\ub450\uc774\ub178\uc758 5V \ud540\uc5d0, GND\ub97c GND \ud540\uc5d0 \uc5f0\uacb0\ud569\ub2c8\ub2e4. Trig \ud540\uc740 \uc544\ub450\uc774\ub178\uc758 \ub514\uc9c0\ud138 \ud540 (\uc608: 7\ubc88 \ud540)\uc5d0, Echo \ud540\uc740 \ub2e4\ub978 \ub514\uc9c0\ud138 \ud540 (\uc608: 8\ubc88 \ud540)\uc5d0 \uc5f0\uacb0\ud569\ub2c8\ub2e4. \uc635\uc158\uc73c\ub85c \uc2a4\ud53c\ucee4\ub098 \ubd80\uc800\ub97c \uc0ac\uc6a9\ud558\ub294 \uacbd\uc6b0, \ub514\uc9c0\ud138 \ud540 (\uc608: 9\ubc88 \ud540)\uc5d0 \uc5f0\uacb0\ud558\uace0 \ub2e4\ub978 \ucabd\uc740 GND\uc5d0 \uc5f0\uacb0\ud569\ub2c8\ub2e4.<\/p>\n<h3>\uc544\ub450\uc774\ub178 \ucf54\ub4dc \uc791\uc131<\/h3>\n<p>\uc544\ub450\uc774\ub178 IDE\ub97c \uc0ac\uc6a9\ud558\uc5ec \ub2e4\uc74c\uacfc \uac19\uc740 \ucf54\ub4dc\ub97c \uc791\uc131\ud558\uace0 \uc5c5\ub85c\ub4dc\ud569\ub2c8\ub2e4.  \ucf54\ub4dc\ub294 \ucd08\uc74c\ud30c \uc13c\uc11c\ub97c \ud1b5\ud574 \uac70\ub9ac\ub97c \uce21\uc815\ud558\uace0, \uce21\uc815\ub41c \uac70\ub9ac \uac12\uc5d0 \ub530\ub77c \uc18c\ub9ac\uc758 \ub192\ub0ae\uc774 \ub610\ub294 \uac04\uaca9\uc744 \ubcc0\uacbd\ud558\uc5ec \ucd9c\ub825\ud558\ub294 \ubc29\uc2dd\uc73c\ub85c \uc791\ub3d9\ud569\ub2c8\ub2e4.<\/p>\n<pre><code class=\"language-c++\">const int trigPin = 7;\nconst int echoPin = 8;\nconst int speakerPin = 9;\n\nvoid setup() {\n  pinMode(trigPin, OUTPUT);\n  pinMode(echoPin, INPUT);\n  pinMode(speakerPin, OUTPUT);\n  Serial.begin(9600);\n}\n\nvoid loop() {\n  long duration, distance;\n  digitalWrite(trigPin, LOW);\n  delayMicroseconds(2);\n  digitalWrite(trigPin, HIGH);\n  delayMicroseconds(10);\n  digitalWrite(trigPin, LOW);\n  duration = pulseIn(echoPin, HIGH);\n  distance = duration * 0.034 \/ 2;\n\n  Serial.print(\"Distance: \");\n  Serial.print(distance);\n  Serial.println(\" cm\");\n\n  if (distance &amp;lt; 50) {\n    tone(speakerPin, 1000); \/\/ \uac00\uae4c\uc6b8\uc218\ub85d \ub192\uc740 \uc74c\n  } else if (distance &amp;lt; 100) {\n    tone(speakerPin, 500);\n  } else {\n    noTone(speakerPin);\n  }\n\n  delay(100);\n}<\/code><\/pre>\n<h3>\ud14c\uc2a4\ud2b8 \ubc0f \uac1c\uc120<\/h3>\n<p>\uc791\uc131\ud55c \ucf54\ub4dc\ub97c \uc544\ub450\uc774\ub178\uc5d0 \uc5c5\ub85c\ub4dc\ud558\uace0, \ucd08\uc74c\ud30c \uc13c\uc11c \uc55e\uc5d0 \ubb3c\uccb4\ub97c \uc6c0\uc9c1\uc5ec \ubcf4\uba74\uc11c \uac70\ub9ac\uc5d0 \ub530\ub77c \uc18c\ub9ac\uc758 \ubcc0\ud654\ub97c \ud655\uc778\ud569\ub2c8\ub2e4.  \uc13c\uc11c\uc758 \uac10\ub3c4\ub098 \uc18c\ub9ac\uc758 \ucd9c\ub825 \ubc29\uc2dd\uc740 \ucf54\ub4dc\ub97c \uc218\uc815\ud558\uc5ec \uc870\uc808\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.  \uc608\ub97c \ub4e4\uc5b4, <code>tone()<\/code> \ud568\uc218 \ub300\uc2e0 <code>delay()<\/code> \ud568\uc218\ub97c \uc0ac\uc6a9\ud558\uc5ec \uac70\ub9ac\uc5d0 \ub530\ub77c \uc18c\ub9ac\uc758 \uac04\uaca9\uc744 \uc870\uc808\ud560 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\uc774\ucc98\ub7fc \uac04\ub2e8\ud55c \uc18c\ub098 \uc7a5\uce58\ub97c \uc9c1\uc811 \ub9cc\ub4e4\uc5b4\ubcf4\uba74\uc11c \uc18c\ub098\uc758 \uc6d0\ub9ac\ub97c \uc774\ud574\ud558\uace0, \ub354 \ub098\uc544\uac00 \ub2e4\uc591\ud55c \uae30\ub2a5\uc744 \ucd94\uac00\ud558\uc5ec \uc790\uc2e0\ub9cc\uc758 \uc7a5\uce58\ub97c \uac1c\ubc1c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubb3c\ub860, \uc804\ubb38\uc801\uc778 \uc18c\ub098 \uc7a5\uce58\uc640 \ube44\uad50\ud558\uba74 \uc131\ub2a5\uc774\ub098 \uc815\ud655\ub3c4\ub294 \ub5a8\uc5b4\uc9c0\uc9c0\ub9cc, \ud559\uc2b5 \ub3c4\uad6c\ub85c \ud65c\uc6a9\ud558\uae30\uc5d0\ub294 \ucda9\ubd84\ud569\ub2c8\ub2e4.  \ub354\uc6b1 \uc815\uad50\ud55c \uc18c\ub098\ub97c \ub9cc\ub4e4\uae30 \uc704\ud574\uc11c\ub294 \ub354\uc6b1  \uc2ec\ub3c4\uc788\ub294 \uc804\uc790 \uacf5\ud559 \uc9c0\uc2dd\uacfc  \ub2e4\uc591\ud55c \uc13c\uc11c \ud65c\uc6a9\ubc95\uc744 \uc775\ud600\uc57c \ud560 \uac83\uc785\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\uc9d1\uc5d0\uc11c \uc18c\ub098 \uc7a5\uce58\ub97c \ub9cc\ub4dc\ub294 \uac83\uc740 \uc0dd\uac01\ubcf4\ub2e4 \ubcf5\uc7a1\ud558\uba70, \uc644\ubcbd\ud55c \uc131\ub2a5\uc744 \uae30\ub300\ud558\uae30\ub294 \uc5b4\ub835\uc2b5\ub2c8\ub2e4. \ud558\uc9c0\ub9cc \uae30\ubcf8\uc801\uc778 \uc6d0\ub9ac\ub97c \uc774\ud574\ud558\uace0 \uac04\ub2e8\ud55c \uc7a5\uce58\ub97c \uc81c\uc791\ud574\ubcf4\ub294 \uac83\uc740 \ud765\ubbf8\ub85c\uc6b4 \uacbd\ud5d8\uc774 \ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uae00\uc5d0\uc11c\ub294 \ucd08\uc74c\ud30c \uc13c\uc11c\ub97c \uc774\uc6a9\ud558\uc5ec \uae30\ubcf8\uc801\uc778 \uc18c\ub098 \uc7a5\uce58\ub97c \ub9cc\ub4dc\ub294 \ubc29\ubc95\uc744 \ub2e8\uacc4\ubcc4\ub85c \uc124\uba85\ud558\uace0, \uac01 \ub2e8\uacc4\uc5d0\uc11c \ud544\uc694\ud55c \ubd80\ud488\uacfc \uc8fc\uc758\uc0ac\ud56d\uc744 \uc790\uc138\ud788 \uc548\ub0b4\ud569\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \uc18c\ub098\uc758 \uc791\ub3d9 \uc6d0\ub9ac\ub97c \uc774\ud574\ud558\uace0 \uc9c1\uc811 \uc81c\uc791\ud574\ubcf4\ub294 \uacbd\ud5d8\uc744 \uc81c\uacf5\ud558\uace0\uc790 \ud569\ub2c8\ub2e4. \ud544\uc694\ud55c<\/p>\n","protected":false},"author":1,"featured_media":26939,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6409],"tags":[],"class_list":["post-34426","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","prodpage-classic"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.bjultrasonic.com\/ko\/wp-json\/wp\/v2\/posts\/34426","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bjultrasonic.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bjultrasonic.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/ko\/wp-json\/wp\/v2\/comments?post=34426"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/ko\/wp-json\/wp\/v2\/posts\/34426\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/ko\/wp-json\/wp\/v2\/media\/26939"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/ko\/wp-json\/wp\/v2\/media?parent=34426"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/ko\/wp-json\/wp\/v2\/categories?post=34426"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/ko\/wp-json\/wp\/v2\/tags?post=34426"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}