Amfani da 5V Relay Module (Low-Trigger) tare da Arduino

Amfani da 5V Relay Module (Low-Trigger) tare da Arduino

A cikin wannan koyarwar, za mu bincika yadda za a yi amfani da modulin relay na 5V tare da Arduino, musamman ma muna mai da hankali kan relay mai ƙarancin juyawa. Relay yana ba ka damar sarrafa na'urorin wutar lantarki masu ƙarfi tare da ƙaramin mai sarrafawa, yana mai da shi muhimmin ɓangare na ayyukan sarrafa kansa daban-daban. A ƙarshen wannan koyarwar, za ka iya kunna relay da kashe shi ta amfani da Arduino naka, wanda za a iya amfani da shi don sarrafa fitilu, motoci, da sauran na'urori.

Don haka, za mu rubuta shirin Arduino mai sauƙi wanda ke canza relay a kan da kashe a lokuta na yau da kullum. Wannan aikin yana da sauƙi kuma ya dace da masu farawa da ke neman fahimtar yadda relays ke aiki tare da microcontrollers (a cikin bidiyo a 00:30).

Kayan Aiki An Bayyana

Babban abubuwan da ake bukata don wannan aikin sun hada da allo na Arduino, wani 5V relay module, da igiyoyin jumper. Allon Arduino yana aiki a matsayin kwakwalwar aikin, yana aika sigina ga relay module don sarrafa halin sa. Relay module din an tsara shi don canza na'urori daga kan ko kashe ta hanyar sarrafa gefen wutar lantarki mai karfi tare da sigina mai karfi daga Arduino.

Kowane module relay yawanci yana dauke da opto-isolator don raba tsakanin ƙaramin wutar lantarki da babban wutar lantarki, yana kare Arduino daga back EMF da tasirin wutar lantarki. A cikin wannan yanayin, za mu yi amfani da relay mai ƙarancin juyawa, wanda ke nufin cewa ana kunna shi lokacin da aka saita siginar kulawa zuwa LOW.

Bayanan Takardu

• Tabbatar da ingantaccen fitar zafi lokacin amfani da manyan kaya.
• Yi amfani da tushen wutar lantarki daban don na'urorin wutar lantarki mai karfi.
• Duba wayoyi don guje wa gajerun haɗari.
• Tabbatar da cewa bayanan relay ɗin sun dace da nauyin da kake nufi.
• Gwada relay din da multimeter kafin haɗa ƙarfin wuta mai yawa.

Umarni Waya

Don yin waya zuwa tsarin relay, fara da haɗa pin VCC na tsarin relay zuwa pin 5V akan Arduino. Sannan, haɗa pin GND na tsarin relay zuwa pin GND akan Arduino. Pin kulawa don relay, wanda aka fi alama da IN, ya kamata a haɗa shi da pin dijital akan Arduino, misali, pin 8. Wannan tsari yana ba da damar Arduino don sarrafa yanayin relay.

Da zarar an kammala haɗin waya, za ku sami VCC da GND suna ba da wutar lantarki ga modulin relay, yayin da pin na kulawa zai aika sigina don kunna da kashe relay. Tabbatar cewa haɗin suna da ƙarfi don guje wa kowanne matsala na lokaci-lokaci yayin aiki. Idan kuna amfani da wani nau'in Arduino, ku tabbatar da tsara pin na kulawa yadda ya kamata.

Misalan Lamba & Jagora

int relayPin = 8; // define output pin for relay

void setup() {
  pinMode(relayPin, OUTPUT); // define pin 8 as output
}

void loop() {
  digitalWrite(relayPin, LOW); // turn the relay ON
  delay(500); // wait for 500 milliseconds
  digitalWrite(relayPin, HIGH); // turn the relay OFF
  delay(500); // wait for 500 milliseconds
}

A cikin lambar, muna fara da bayyana pin fitarwa don relay tare darelayPinsaita zuwa 8. A cikinsetup()aiki, mun sa wannan pin a matsayin FITOWA. Wannanloop()aiki yana canza matsayin relay a ci gaba ta hanyar rubuta LOW zuwa pin, yana kunna shi, sannan yana rubuta HIGH, yana kashe shi bayan jinkirin milisekondi 500.

Nuna / Abin da za a yi tsammani

Da zarar an kammala haɗa waya da shirin, ya kamata ku ga relay yana danna kan da kashe kowane rabin dakika. Wannan yana nuna cewa Arduino yana sarrafa relay ɗin yadda ya kamata. Idan kun haɗa na'ura mai ƙarfin wuta zuwa relay, ya kamata ta kunna da kashe tare da yanayin relay. Tabbatar cewa relay ɗin yana da ƙima don ƙarfin wuta da ƙarfin na'urar da kuke sarrafawa don guje wa lalacewa (a cikin bidiyo a 02:15).

Hanyoyi masu yuwuwa sun haɗa da haɗin waya mara kyau, wanda zai iya haifar da rashin aiki na relay kamar yadda aka zata. Bugu da ƙari, tabbatar cewa kuna amfani da relay mai ƙarancin juyawa; in ba haka ba, kuna iya buƙatar daidaita lambar don dacewa da relay mai babban juyawa.

Lokutan Bidiyo

• 00:00Gabatarwa ga aikin
• 00:30Bayanan kayan aiki
• 01:15Umarni haɗa waya
• 02:15Nuna aikin relay a aikace

Hotuna

5V LOW-LEVEL trigger relay

Relay wiring when load is OFF

Relay wiring when load is ON

5V HIGH-level trigger relay module

controlling_Relay_AC_bulb_wiring_low_trigger

5V LOW-LEVEL trigger relay

Relay wiring when load is OFF

Relay wiring when load is ON

5V HIGH-level trigger relay module

controlling_Relay_AC_bulb_wiring_low_trigger

// April 1, 2017
 // Written by Ahmad Shamshiri for Robojax.com video 
 // Introduction to 5V relay.
 // Watch video for this code: https://www.youtube.com/watch?v=7tUGUXyloXQ
/* 
 * Please keep this note with the code.
 * This code is available on Robojax.com
 * 
 * This code is "AS IS" without warranty or liability. Free to be used as long as you keep this note intact.
 * This code has been downloaded from Robojax.com
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
int relayPin = 8;// define output pin for relay 

void setup() {
  pinMode(relayPin, OUTPUT);// define pin 8 as output

}

void loop() {
  
  digitalWrite(relayPin, LOW); // turn the relay ON (low is ON if relay is LOW trigger. Change it to HIGH if you have a HIGH trigger relay)

  delay(500); // wait for 500 milliseconds
 digitalWrite(relayPin, HIGH);// // turn the relay OFF (HIGH is OFF if relay is LOW trigger. Change it to LOW if you have a HIGH trigger relay)
 delay(500);// wait for 500 milliseconds
}