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Incompatibility with sonar HC-SR04

Pixy Software
#1

Hello,

I am triying to use the Pixy2 cam to do a rover that recognises the color from some objects and then go to different places depending of the color. The project has also a HC-SR04 sonar to detect a object during the movements.

Mi code worked perfectly without the camera and when I put the camera to select where to go the sonars measure is always 0.

I have tryied a lot of different things and I don´t know what happens. Could be some type of incompatibility?

I connect the camera to the arduino MEGAs ICSP pins. The sonar ir connected to the digital pins 50 and 48 pins.

Thanks.

#2

Hello,
What type of communication do the sonar sensors use with the Arduino? If they use SPI, or if they use the same I/O signals as the SPI port, you may need to introduce some workarounds.

Can you try using different pins on your Arduino?

Edward

#3

Hello,
I have the sonar connected to the pin 48 and 50. And the Pixy to the ICSP pins. To use the sonar y use this code:

pinMode (trig, OUTPUT);
pinMode(echo, INPUT);
}
void loop() {
digitalWrite(trig, HIGH);
delay(1);
digitalWrite(trig, LOW);
tiempo = pulseIn(echo, HIGH);
distancia = tiempo / 58.2;
Serial.println(distancia);
}

I think that 48 and 50 pin are not in the ICSP pins

#4

You were right, the problem was on the pins that I connect the sonar, they where blocked by the Pixy2 with the ICSP.

Thanks

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