Hi, I am working on gesture recognition sensor interface. I get communication error, and the error code is 2.
here is my code (Sample code in Arduino IDE).
#include <Wire.h>
#include "paj7620.h"
/*
Notice: When you want to recognize the Forward/Backward gestures, your gestures' reaction time must less than GES_ENTRY_TIME(0.8s).
You also can adjust the reaction time according to the actual circumstance.
*/
#define GES_REACTION_TIME 500 // You can adjust the reaction time according to the actual circumstance.
#define GES_ENTRY_TIME 800 // When you want to recognize the Forward/Backward gestures, your gestures' reaction time must less than GES_ENTRY_TIME(0.8s).
#define GES_QUIT_TIME 1000
void setup()
{
uint8_t error = 0;
Serial.begin(9600);
Serial.println("\nPAJ7620U2 TEST DEMO: Recognize 9 gestures.");
error = paj7620Init(); // initialize Paj7620 registers
if (error)
{
Serial.print("INIT ERROR,CODE:");
Serial.println(error);
}
else
{
Serial.println("INIT OK");
}
Serial.println("Please input your gestures:\n");
}
void loop()
{
uint8_t data = 0, data1 = 0, error;
error = paj7620ReadReg(0x43, 1, &data); // Read Bank_0_Reg_0x43/0x44 for gesture result.
if (!error)
{
switch (data) // When different gestures be detected, the variable 'data' will be set to different values by paj7620ReadReg(0x43, 1, &data).
{
case GES_RIGHT_FLAG:
delay(GES_ENTRY_TIME);
paj7620ReadReg(0x43, 1, &data);
if(data == GES_FORWARD_FLAG)
{
Serial.println("Forward");
delay(GES_QUIT_TIME);
}
else if(data == GES_BACKWARD_FLAG)
{
Serial.println("Backward");
delay(GES_QUIT_TIME);
}
else
{
Serial.println("Right");
}
break;
case GES_LEFT_FLAG:
delay(GES_ENTRY_TIME);
paj7620ReadReg(0x43, 1, &data);
if(data == GES_FORWARD_FLAG)
{
Serial.println("Forward");
delay(GES_QUIT_TIME);
}
else if(data == GES_BACKWARD_FLAG)
{
Serial.println("Backward");
delay(GES_QUIT_TIME);
}
else
{
Serial.println("Left");
}
break;
case GES_UP_FLAG:
delay(GES_ENTRY_TIME);
paj7620ReadReg(0x43, 1, &data);
if(data == GES_FORWARD_FLAG)
{
Serial.println("Forward");
delay(GES_QUIT_TIME);
}
else if(data == GES_BACKWARD_FLAG)
{
Serial.println("Backward");
delay(GES_QUIT_TIME);
}
else
{
Serial.println("Up");
}
break;
case GES_DOWN_FLAG:
delay(GES_ENTRY_TIME);
paj7620ReadReg(0x43, 1, &data);
if(data == GES_FORWARD_FLAG)
{
Serial.println("Forward");
delay(GES_QUIT_TIME);
}
else if(data == GES_BACKWARD_FLAG)
{
Serial.println("Backward");
delay(GES_QUIT_TIME);
}
else
{
Serial.println("Down");
}
break;
case GES_FORWARD_FLAG:
Serial.println("Forward");
delay(GES_QUIT_TIME);
break;
case GES_BACKWARD_FLAG:
Serial.println("Backward");
delay(GES_QUIT_TIME);
break;
case GES_CLOCKWISE_FLAG:
Serial.println("Clockwise");
break;
case GES_COUNT_CLOCKWISE_FLAG:
Serial.println("anti-clockwise");
break;
default:
paj7620ReadReg(0x44, 1, &data1);
if (data1 == GES_WAVE_FLAG)
{
Serial.println("wave");
}
break;
}
}
delay(100);
}
What can be wrong ? The module failure or I2c needs external pullup or any other communication problem ? Please suggest.