Description

Hello all,

I wail back I posted some information on using an Arduino as a I2C Sensor controller to use with the EZB3&4

I will post this in 3 stages ..


Stage one.. right here right now.

In this video you can see how im using the arduino to read the ultrasonic sensor . that in turn is being read by the EZB board via I2C.

print(I2CRead(0, 2,6 ))

Step 1

Hello all,

I wail back I posted some information on using an Arduino as a I2C Sensor controller to use with the EZB3&4

I will post this in 3 stages ..


Stage one.. right here right now.

In this video you can see how im using the arduino to read the ultrasonic sensor . that in turn is being read by the EZB board via I2C.

print(I2CRead(0, 2,6 ))

#include 

void setup()
{
  Wire.begin(2);                
  Wire.onRequest(requestEvent); 
}

void loop()
{
  delay(100);
}

void requestEvent()
{

  long duration, inches, cm;
  pinMode(9, OUTPUT);// attach pin 3 to Trig
  digitalWrite(9, LOW);
  delayMicroseconds(2);
  digitalWrite(9, HIGH);
  delayMicroseconds(5);
  digitalWrite(9, LOW);

  pinMode (8, INPUT);//attach pin 4 to Echo
  duration = pulseIn(8, HIGH);
  // convert the time into a distance
  inches = microsecondsToInches(duration);
  cm = microsecondsToCentimeters(duration);
  
  String outtoezb;
  
  outtoezb +=  "D1=";
  outtoezb += inches;
  outtoezb += ":";
  
  char  tempout[outtoezb.length() + 1];
  outtoezb.toCharArray(tempout,outtoezb.length() + 1); 
  Wire.write(tempout); 
}

long microsecondsToInches(long microseconds)
{
  
  return microseconds / 74 / 2;
}

long microsecondsToCentimeters(long microseconds)
{
  
  return microseconds / 29 / 2;
}