{"id":2125,"date":"2025-10-16T20:39:26","date_gmt":"2025-10-16T18:39:26","guid":{"rendered":"https:\/\/www.mtknowledge.com\/?p=2125"},"modified":"2025-10-16T20:46:39","modified_gmt":"2025-10-16T18:46:39","slug":"sensor_humedad-arduino","status":"publish","type":"post","link":"https:\/\/www.mtknowledge.com\/en\/sensor_humedad-arduino\/","title":{"rendered":"Sensor de humedad"},"content":{"rendered":"
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Sensorde humedad para CPD<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Objetivo:<\/span><\/h2>

Crear un sensor de humedad para que monitoree la humedad de una habitaci\u00f3n donde se encuentra el CPD y asegurar de que mantiene un nivel estable para este entre 40 -60%<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Esta placa consta de una Arduino NANO conectada a 3 leds (rojo, amarillo y verde) con sus respectivas resistencias de 330 \u03a9<\/b><\/span><\/span>\u00a0 y un sensor de temperatura y humedad DHT22 AM2301 el cual de pendiendo de la lectura iluminara los respectivos leds . Adicionalmente la placa tiene un zumbador el cual esta para emitir pitidos y avisar de una humedad alta y a demas de avisar del correcto arraque de la placa de desarroyo al momento de enchufarla, si surjiera algun error el led parpadearia ne rojo y solo habria que pulsar el boton de reset<\/span><\/p>

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Archivo de codigo.zip<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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C\u00f3digo <\/div><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/svg><\/span>\n\t\t\t<\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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#include <DHT.h><\/span><\/div>
\/\/ Define pins<\/span><\/div>
#define DHTPIN 2 \u00a0\/\/ Pin for DHT22 data<\/span><\/div>
#define DHTTYPE DHT22<\/span><\/div>
#define SOIL_SENSOR_PIN A0 \u00a0\/\/ Pin for soil moisture sensor<\/span><\/div>
#define GREEN_LED_PIN 8<\/span><\/div>
#define YELLOW_LED_PIN 9<\/span><\/div>
#define RED_LED_PIN 10<\/span><\/div>
#define BUZZER_PIN 3<\/span><\/div>
\/\/ Initialize DHT sensor<\/span><\/div>
DHT dht(DHTPIN, DHTTYPE);<\/span><\/div>
void setup() {<\/span><\/div>
\u00a0 \/\/ Initialize serial communication<\/span><\/div>
\u00a0 Serial.begin(9600);<\/span><\/div>
\u00a0 \/\/ Initialize DHT sensor<\/span><\/div>
\u00a0 dht.begin();<\/span><\/div>
\u00a0 \/\/ Set pin modes<\/span><\/div>
\u00a0 pinMode(SOIL_SENSOR_PIN, INPUT);<\/span><\/div>
\u00a0 pinMode(GREEN_LED_PIN, OUTPUT);<\/span><\/div>
\u00a0 pinMode(YELLOW_LED_PIN, OUTPUT);<\/span><\/div>
\u00a0 pinMode(RED_LED_PIN, OUTPUT);<\/span><\/div>
\u00a0 pinMode(BUZZER_PIN, OUTPUT);<\/span><\/div>
\u00a0 \/\/ Turn off all LEDs and buzzer initially<\/span><\/div>
\u00a0 digitalWrite(GREEN_LED_PIN, LOW);<\/span><\/div>
\u00a0 digitalWrite(YELLOW_LED_PIN, LOW);<\/span><\/div>
\u00a0 digitalWrite(RED_LED_PIN, LOW);<\/span><\/div>
\u00a0 digitalWrite(BUZZER_PIN, LOW);<\/span><\/div>
}<\/span><\/div>
void loop() {<\/span><\/div>
\u00a0 \/\/ Read humidity from DHT22<\/span><\/div>
\u00a0 float humidity = dht.readHumidity();<\/span><\/div>
\u00a0 \/\/ Read soil moisture level (analog value)<\/span><\/div>
\u00a0 int soilMoisture = analogRead(SOIL_SENSOR_PIN);<\/span><\/div>
\u00a0 \/\/ Print readings to serial monitor<\/span><\/div>
\u00a0 Serial.print(\u00abHumidity: \u00ab);<\/span><\/div>
\u00a0 Serial.print(humidity);<\/span><\/div>
\u00a0 Serial.println(\u00ab%\u00bb);<\/span><\/div>
\u00a0 Serial.print(\u00abSoil Moisture: \u00ab);<\/span><\/div>
\u00a0 Serial.println(soilMoisture);<\/span><\/div>
\u00a0 \/\/ LEDs and buzzer logic based on humidity<\/span><\/div>
\u00a0 if (humidity < 40.0) {<\/span><\/div>
\u00a0 \u00a0 \/\/ Green LED: Below 40%<\/span><\/div>
\u00a0 \u00a0 digitalWrite(GREEN_LED_PIN, HIGH);<\/span><\/div>
\u00a0 \u00a0 digitalWrite(YELLOW_LED_PIN, LOW);<\/span><\/div>
\u00a0 \u00a0 digitalWrite(RED_LED_PIN, LOW);<\/span><\/div>
\u00a0 \u00a0 digitalWrite(BUZZER_PIN, LOW);<\/span><\/div>
\u00a0 } else if (humidity >= 40.0 && humidity <= 60.0) {<\/span><\/div>
\u00a0 \u00a0 \/\/ Yellow LED: Between 40% and 60%<\/span><\/div>
\u00a0 \u00a0 digitalWrite(GREEN_LED_PIN, LOW);<\/span><\/div>
\u00a0 \u00a0 digitalWrite(YELLOW_LED_PIN, HIGH);<\/span><\/div>
\u00a0 \u00a0 digitalWrite(RED_LED_PIN, LOW);<\/span><\/div>
\u00a0 \u00a0 \/\/ Short beeps<\/span><\/div>
\u00a0 \u00a0 digitalWrite(BUZZER_PIN, HIGH);<\/span><\/div>
\u00a0 \u00a0 delay(200);<\/span><\/div>
\u00a0 \u00a0 digitalWrite(BUZZER_PIN, LOW);<\/span><\/div>
\u00a0 \u00a0 delay(800);<\/span><\/div>
\u00a0 } else {<\/span><\/div>
\u00a0 \u00a0 \/\/ Red LED: Above 60%<\/span><\/div>
\u00a0 \u00a0 digitalWrite(GREEN_LED_PIN, LOW);<\/span><\/div>
\u00a0 \u00a0 digitalWrite(YELLOW_LED_PIN, LOW);<\/span><\/div>
\u00a0 \u00a0 digitalWrite(RED_LED_PIN, HIGH);<\/span><\/div>
\u00a0 \u00a0 \/\/ Continuous beeps<\/span><\/div>
\u00a0 \u00a0 digitalWrite(BUZZER_PIN, HIGH);<\/span><\/div>
\u00a0 \u00a0 delay(100);<\/span><\/div>
\u00a0 \u00a0 digitalWrite(BUZZER_PIN, LOW);<\/span><\/div>
\u00a0 \u00a0 delay(100);<\/span><\/div>
\u00a0 }<\/span><\/div>
\u00a0 \/\/ Delay for next reading<\/span><\/div>
\u00a0 delay(2000);<\/span><\/div>
}<\/span><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

Sensorde humedad para CPD Objetivo: Crear un sensor de humedad para que monitoree la humedad de una habitaci\u00f3n donde se encuentra el CPD y asegurar de que mantiene un nivel estable para este entre 40 -60% Esta placa consta de una Arduino NANO conectada a 3 leds (rojo, amarillo y verde) con sus respectivas resistencias […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"no-sidebar","site-content-layout":"page-builder","ast-site-content-layout":"full-width-container","site-content-style":"unboxed","site-sidebar-style":"unboxed","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"enabled","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2125","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/www.mtknowledge.com\/en\/wp-json\/wp\/v2\/posts\/2125","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.mtknowledge.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.mtknowledge.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.mtknowledge.com\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mtknowledge.com\/en\/wp-json\/wp\/v2\/comments?post=2125"}],"version-history":[{"count":10,"href":"https:\/\/www.mtknowledge.com\/en\/wp-json\/wp\/v2\/posts\/2125\/revisions"}],"predecessor-version":[{"id":2139,"href":"https:\/\/www.mtknowledge.com\/en\/wp-json\/wp\/v2\/posts\/2125\/revisions\/2139"}],"wp:attachment":[{"href":"https:\/\/www.mtknowledge.com\/en\/wp-json\/wp\/v2\/media?parent=2125"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.mtknowledge.com\/en\/wp-json\/wp\/v2\/categories?post=2125"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.mtknowledge.com\/en\/wp-json\/wp\/v2\/tags?post=2125"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}