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#include <IRremote.h> int IRpin=12; IRrecv IR(IRpin); decode_results cmd; void setup() { // put your setup code here, to run once: Serial.begin(9600); IR.enableIRIn(); IR.blink13(true); } void loop() { // put your main code here, to run repeatedly: while (IR.decode(&cmd)==0) { } Serial.println(cmd.value,HEX); delay(500); IR.resume(); } |
In this lesson we show how to program the Elegoo Smart car to operate with user defined speed and distance. This allows programming by simply stacking simple pre-defined functions. If you want to play along at home, you can get the hardware I am using in this series HERE.
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int ENA=5; int ENB=6; int IN1=7; int IN2=8; int IN3=9; int IN4=11; float d; int degRot; int left; int right; int wv; void setup() { // put your setup code here, to run once: Serial.begin(9600); pinMode(ENA,OUTPUT); pinMode(ENB,OUTPUT); pinMode(IN1,OUTPUT); pinMode(IN2,OUTPUT); pinMode(IN3,OUTPUT); pinMode(IN4,OUTPUT); digitalWrite(ENA,HIGH); digitalWrite(ENB,HIGH); } void loop() { wv=255; left=wv; right=wv; setSpeed(left,right); forward(4,wv); while(1==1){ } } void setSpeed(int leftVal,int rightVal){ analogWrite(ENA,leftVal); analogWrite(ENB,rightVal); } void forward(float d, float wv){ float t; float v; digitalWrite(IN1,HIGH); digitalWrite(IN2,LOW); digitalWrite(IN3,LOW); digitalWrite(IN4,HIGH); v=.0075*wv+.35; t=d/v*1000; delay(t); stopCar(); } void backward(float d, float wv){ float t; float v; digitalWrite(IN1,LOW); digitalWrite(IN2,HIGH); digitalWrite(IN3,HIGH); digitalWrite(IN4,LOW); v=.0075*wv+.35; t=d/v*1000; delay(t); stopCar(); } void turnRight(int deg){ float t; digitalWrite(IN1,HIGH); digitalWrite(IN2,LOW); digitalWrite(IN3,HIGH); digitalWrite(IN4,LOW); t=deg/345.*1000.; Serial.println(deg); delay(t); stopCar(); } void turnLeft(float deg){ float t; digitalWrite(IN1,LOW); digitalWrite(IN2,HIGH); digitalWrite(IN3,LOW); digitalWrite(IN4,HIGH); t=deg/345.*1000.; Serial.println(deg); delay(t); stopCar(); } void stopCar(){ digitalWrite(IN1,LOW); digitalWrite(IN2,LOW); digitalWrite(IN3,LOW); digitalWrite(IN4,LOW); } void calF(){ digitalWrite(IN1,HIGH); digitalWrite(IN2,LOW); digitalWrite(IN3,LOW); digitalWrite(IN4,HIGH); delay(5000); stopCar(); } void calB(){ digitalWrite(IN1,LOW); digitalWrite(IN2,HIGH); digitalWrite(IN3,HIGH); digitalWrite(IN4,LOW); delay(5000); stopCar(); } void calR(){ digitalWrite(IN1,HIGH); digitalWrite(IN2,LOW); digitalWrite(IN3,HIGH); digitalWrite(IN4,LOW); delay(5000); stopCar(); } void calL(){ digitalWrite(IN1,LOW); digitalWrite(IN2,HIGH); digitalWrite(IN3,LOW); digitalWrite(IN4,HIGH); delay(5000); stopCar(); } |
