FABRIQUER UN RADAR A ULTRASONS 📡

📌  Aujourd’hui, je vais vous montrer comment fabriquer facilement un radar a ultrasons 📡, parfait pour détecter des obstacles et même mesurer une distance.

📌 Pour reproduire le projet, tu as besoin de

•  📟 1 Arduino (https://goo.gl/8NA8bb)
• 🔧 1 module ultrason (https://goo.gl/TVvqQR)
• 🔧 1 servomoteur (https://goo.gl/5uYWhn)
• 🔌 1 câble USB/Arduino
• 🔌 7 fils

📌 Après avoir téléchargé le logiciel pour programmer l’Arduino 📑 https://sup.yt/arduinosoftware, il va falloir envoyer le code ci-dessous dans la carte:

[pastacode lang= »cpp » manual= »%2F%2F%20Includes%20the%20Servo%20library%0A%23include%20%3CServo.h%3E.%20%0A%2F%2F%20Defines%20Tirg%20and%20Echo%20pins%20of%20the%20Ultrasonic%20Sensor%0Aconst%20int%20trigPin%20%3D%209%3B%0Aconst%20int%20echoPin%20%3D%2010%3B%0A%2F%2F%20Variables%20for%20the%20duration%20and%20the%20distance%0Along%20duration%3B%0Aint%20distance%3B%0AServo%20myServo%3B%20%2F%2F%20Creates%20a%20servo%20object%20for%20controlling%20the%20servo%20motor%0Avoid%20setup()%20%7B%0A%20%20pinMode(trigPin%2C%20OUTPUT)%3B%20%2F%2F%20Sets%20the%20trigPin%20as%20an%20Output%0A%20%20pinMode(echoPin%2C%20INPUT)%3B%20%2F%2F%20Sets%20the%20echoPin%20as%20an%20Input%0A%20%20Serial.begin(9600)%3B%0A%20%20myServo.attach(3)%3B%20%2F%2F%20Defines%20on%20which%20pin%20is%20the%20servo%20motor%20attached%0A%7D%0Avoid%20loop()%20%7B%0A%20%20%2F%2F%20rotates%20the%20servo%20motor%20from%2015%20to%20165%20degrees%0A%20%20for(int%20i%3D15%3Bi%3C%3D165%3Bi%2B%2B)%7B%20%20%0A%20%20myServo.write(i)%3B%0A%20%20delay(30)%3B%0A%20%20distance%20%3D%20calculateDistance()%3B%2F%2F%20Calls%20a%20function%20for%20calculating%20the%20distance%20measured%20by%20the%20Ultrasonic%20sensor%20for%20each%20degree%0A%20%20%0A%20%20Serial.print(i)%3B%20%2F%2F%20Sends%20the%20current%20degree%20into%20the%20Serial%20Port%0A%20%20Serial.print(%22%2C%22)%3B%20%2F%2F%20Sends%20addition%20character%20right%20next%20to%20the%20previous%20value%20needed%20later%20in%20the%20Processing%20IDE%20for%20indexing%0A%20%20Serial.print(distance)%3B%20%2F%2F%20Sends%20the%20distance%20value%20into%20the%20Serial%20Port%0A%20%20Serial.print(%22.%22)%3B%20%2F%2F%20Sends%20addition%20character%20right%20next%20to%20the%20previous%20value%20needed%20later%20in%20the%20Processing%20IDE%20for%20indexing%0A%20%20%7D%0A%20%20%2F%2F%20Repeats%20the%20previous%20lines%20from%20165%20to%2015%20degrees%0A%20%20for(int%20i%3D165%3Bi%3E15%3Bi–)%7B%20%20%0A%20%20myServo.write(i)%3B%0A%20%20delay(30)%3B%0A%20%20distance%20%3D%20calculateDistance()%3B%0A%20%20Serial.print(i)%3B%0A%20%20Serial.print(%22%2C%22)%3B%0A%20%20Serial.print(distance)%3B%0A%20%20Serial.print(%22.%22)%3B%0A%20%20%7D%0A%7D%0A%2F%2F%20Function%20for%20calculating%20the%20distance%20measured%20by%20the%20Ultrasonic%20sensor%0Aint%20calculateDistance()%7B%20%0A%20%20%0A%20%20digitalWrite(trigPin%2C%20LOW)%3B%20%0A%20%20delayMicroseconds(2)%3B%0A%20%20%2F%2F%20Sets%20the%20trigPin%20on%20HIGH%20state%20for%2010%20micro%20seconds%0A%20%20digitalWrite(trigPin%2C%20HIGH)%3B%20%0A%20%20delayMicroseconds(10)%3B%0A%20%20digitalWrite(trigPin%2C%20LOW)%3B%0A%20%20duration%20%3D%20pulseIn(echoPin%2C%20HIGH)%3B%20%2F%2F%20Reads%20the%20echoPin%2C%20returns%20the%20sound%20wave%20travel%20time%20in%20microseconds%0A%20%20distance%3D%20duration*0.034%2F2%3B%0A%20%20return%20distance%3B%0A%7D » message= »📄 CODE ARDUINO » highlight= » » provider= »manual »/]

📌 Enfin il faut lancer l’interface graphique, après avoir téléchargé le logiciel Processing 📑 https://sup.yt/processing, il va falloir envoyer le code ci-dessous dans la carte:

[pastacode lang= »java » manual= »import%20processing.serial.*%3B%20%2F%2F%20imports%20library%20for%20serial%20communication%0Aimport%20java.awt.event.KeyEvent%3B%20%2F%2F%20imports%20library%20for%20reading%20the%20data%20from%20the%20serial%20port%0Aimport%20java.io.IOException%3B%0ASerial%20myPort%3B%20%2F%2F%20defines%20Object%20Serial%0A%2F%2F%20defubes%20variables%0AString%20angle%3D%22%22%3B%0AString%20distance%3D%22%22%3B%0AString%20data%3D%22%22%3B%0AString%20noObject%3B%0Afloat%20pixsDistance%3B%0Aint%20iAngle%2C%20iDistance%3B%0Aint%20index1%3D0%3B%0Aint%20index2%3D0%3B%0Avoid%20setup()%20%7B%0A%20%20%0A%20size%20(1920%2C%201080)%3B%20%2F%2F%20***CHANGE%20THIS%20TO%20YOUR%20SCREEN%20RESOLUTION***%0A%20smooth()%3B%0A%20myPort%20%3D%20new%20Serial(this%2C%22COM4%22%2C%209600)%3B%20%2F%2F%20starts%20the%20serial%20communication%0A%20myPort.bufferUntil(‘.’)%3B%20%2F%2F%20reads%20the%20data%20from%20the%20serial%20port%20up%20to%20the%20character%20′.’.%20So%20actually%20it%20reads%20this%3A%20angle%2Cdistance.%0A%7D%0Avoid%20draw()%20%7B%0A%20%20%0A%20%20fill(98%2C245%2C31)%3B%0A%20%20%2F%2F%20simulating%20motion%20blur%20and%20slow%20fade%20of%20the%20moving%20line%0A%20%20noStroke()%3B%0A%20%20fill(0%2C4)%3B%20%0A%20%20rect(0%2C%200%2C%20width%2C%20height-height*0.065)%3B%20%0A%20%20%0A%20%20fill(98%2C245%2C31)%3B%20%2F%2F%20green%20color%0A%20%20%2F%2F%20calls%20the%20functions%20for%20drawing%20the%20radar%0A%20%20drawRadar()%3B%20%0A%20%20drawLine()%3B%0A%20%20drawObject()%3B%0A%20%20drawText()%3B%0A%7D%0Avoid%20serialEvent%20(Serial%20myPort)%20%7B%20%2F%2F%20starts%20reading%20data%20from%20the%20Serial%20Port%0A%20%20%2F%2F%20reads%20the%20data%20from%20the%20Serial%20Port%20up%20to%20the%20character%20′.’%20and%20puts%20it%20into%20the%20String%20variable%20%22data%22.%0A%20%20data%20%3D%20myPort.readStringUntil(‘.’)%3B%0A%20%20data%20%3D%20data.substring(0%2Cdata.length()-1)%3B%0A%20%20%0A%20%20index1%20%3D%20data.indexOf(%22%2C%22)%3B%20%2F%2F%20find%20the%20character%20’%2C’%20and%20puts%20it%20into%20the%20variable%20%22index1%22%0A%20%20angle%3D%20data.substring(0%2C%20index1)%3B%20%2F%2F%20read%20the%20data%20from%20position%20%220%22%20to%20position%20of%20the%20variable%20index1%20or%20thats%20the%20value%20of%20the%20angle%20the%20Arduino%20Board%20sent%20into%20the%20Serial%20Port%0A%20%20distance%3D%20data.substring(index1%2B1%2C%20data.length())%3B%20%2F%2F%20read%20the%20data%20from%20position%20%22index1%22%20to%20the%20end%20of%20the%20data%20pr%20thats%20the%20value%20of%20the%20distance%0A%20%20%0A%20%20%2F%2F%20converts%20the%20String%20variables%20into%20Integer%0A%20%20iAngle%20%3D%20int(angle)%3B%0A%20%20iDistance%20%3D%20int(distance)%3B%0A%7D%0Avoid%20drawRadar()%20%7B%0A%20%20pushMatrix()%3B%0A%20%20translate(width%2F2%2Cheight-height*0.074)%3B%20%2F%2F%20moves%20the%20starting%20coordinats%20to%20new%20location%0A%20%20noFill()%3B%0A%20%20strokeWeight(2)%3B%0A%20%20stroke(98%2C245%2C31)%3B%0A%20%20%2F%2F%20draws%20the%20arc%20lines%0A%20%20arc(0%2C0%2C(width-width*0.0625)%2C(width-width*0.0625)%2CPI%2CTWO_PI)%3B%0A%20%20arc(0%2C0%2C(width-width*0.27)%2C(width-width*0.27)%2CPI%2CTWO_PI)%3B%0A%20%20arc(0%2C0%2C(width-width*0.479)%2C(width-width*0.479)%2CPI%2CTWO_PI)%3B%0A%20%20arc(0%2C0%2C(width-width*0.687)%2C(width-width*0.687)%2CPI%2CTWO_PI)%3B%0A%20%20%2F%2F%20draws%20the%20angle%20lines%0A%20%20line(-width%2F2%2C0%2Cwidth%2F2%2C0)%3B%0A%20%20line(0%2C0%2C(-width%2F2)*cos(radians(30))%2C(-width%2F2)*sin(radians(30)))%3B%0A%20%20line(0%2C0%2C(-width%2F2)*cos(radians(60))%2C(-width%2F2)*sin(radians(60)))%3B%0A%20%20line(0%2C0%2C(-width%2F2)*cos(radians(90))%2C(-width%2F2)*sin(radians(90)))%3B%0A%20%20line(0%2C0%2C(-width%2F2)*cos(radians(120))%2C(-width%2F2)*sin(radians(120)))%3B%0A%20%20line(0%2C0%2C(-width%2F2)*cos(radians(150))%2C(-width%2F2)*sin(radians(150)))%3B%0A%20%20line((-width%2F2)*cos(radians(30))%2C0%2Cwidth%2F2%2C0)%3B%0A%20%20popMatrix()%3B%0A%7D%0Avoid%20drawObject()%20%7B%0A%20%20pushMatrix()%3B%0A%20%20translate(width%2F2%2Cheight-height*0.074)%3B%20%2F%2F%20moves%20the%20starting%20coordinats%20to%20new%20location%0A%20%20strokeWeight(9)%3B%0A%20%20stroke(255%2C10%2C10)%3B%20%2F%2F%20red%20color%0A%20%20pixsDistance%20%3D%20iDistance*((height-height*0.1666)*0.025)%3B%20%2F%2F%20covers%20the%20distance%20from%20the%20sensor%20from%20cm%20to%20pixels%0A%20%20%2F%2F%20limiting%20the%20range%20to%2040%20cms%0A%20%20if(iDistance%3C40)%7B%0A%20%20%20%20%2F%2F%20draws%20the%20object%20according%20to%20the%20angle%20and%20the%20distance%0A%20%20line(pixsDistance*cos(radians(iAngle))%2C-pixsDistance*sin(radians(iAngle))%2C(width-width*0.505)*cos(radians(iAngle))%2C-(width-width*0.505)*sin(radians(iAngle)))%3B%0A%20%20%7D%0A%20%20popMatrix()%3B%0A%7D%0Avoid%20drawLine()%20%7B%0A%20%20pushMatrix()%3B%0A%20%20strokeWeight(9)%3B%0A%20%20stroke(30%2C250%2C60)%3B%0A%20%20translate(width%2F2%2Cheight-height*0.074)%3B%20%2F%2F%20moves%20the%20starting%20coordinats%20to%20new%20location%0A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message= »📄 CODE PROCESSING » highlight= » » provider= »manual »/]