Thanks Jose for reply,
This my schematic and code on arduino, there is something wrong on my schematic?
#include <Wire.h>
#define LED1 3
#define LED2 5
#define LED3 6
#define LED4 9
#define LED5 10
#define LED6 11
#define INT_PIN A2
#define SLEEP_PIN A3
#define STND_BY_LED 10
#define PCF8885_address 0x40
#define SOFT_RESET 0x00
#define CLR_INT 0x03
#define SLEEP 0x05
#define WAKE_UP 0x06
#define WRITE_CONFIG 0x30
#define READ_CONFIG 0x33
#define WRITE_CLOCK 0x35
#define READ_CLOCK 0x36
#define WRITE_MASK 0x39
#define READ_MASK 0x3A
#define INT_OVER_I2C 0x3C
void PC8885_Clear_INT(void) {
Wire.beginTransmission(PCF8885_address);
Wire.write(byte(CLR_INT));
Wire.endTransmission();
}
void PCF8885_SoftReset(void) {
Wire.beginTransmission(PCF8885_address);
Wire.write(byte(SOFT_RESET));
Wire.endTransmission();
}
void PCF8885_WakeUp(void) {
Wire.beginTransmission(PCF8885_address);
Wire.write(byte(WAKE_UP));
Wire.endTransmission();
}
void PCF8885_Sleep(void) {
Wire.beginTransmission(PCF8885_address);
Wire.write(byte(SLEEP));
Wire.endTransmission();
}
void PCF8885_Write_Config(byte data_bit) {
Wire.beginTransmission(PCF8885_address);
Wire.write(byte(WRITE_CONFIG));
Wire.write(data_bit);
Wire.endTransmission();
}
byte PCF8885_Read_Config(void) {
Wire.beginTransmission(PCF8885_address);
Wire.write(byte(READ_CONFIG));
Wire.endTransmission();
Wire.requestFrom(PCF8885_address,1);
byte value_byte = Wire.read();
return value_byte;
}
void PCF8885_Write_Clock(byte data_bit) {
Wire.beginTransmission(PCF8885_address);
Wire.write(WRITE_CLOCK);
Wire.write(data_bit);
Wire.endTransmission();
}
byte PCF8885_Read_CLock() {
Wire.beginTransmission(PCF8885_address);
Wire.write(READ_CLOCK);
Wire.endTransmission();
Wire.requestFrom(PCF8885_address,1);
byte value_byte = Wire.read();
return value_byte;
}
void PCF8885_Write_Mask(byte data_bit) {
Wire.beginTransmission(PCF8885_address);
Wire.write(WRITE_MASK);
Wire.write(data_bit);
Wire.endTransmission();
}
byte PCF8885_Read_Mask() {
Wire.beginTransmission(PCF8885_address);
Wire.write(READ_MASK);
Wire.endTransmission();
Wire.requestFrom(PCF8885_address,1);
byte value_byte = Wire.read();
return value_byte;
}
void PCF8885_IntOver_I2C(void) {
Wire.beginTransmission(PCF8885_address);
Wire.write(INT_OVER_I2C);
Wire.endTransmission();
}
byte read_sensor_touch(void) {
Wire.requestFrom(PCF8885_address,1);
byte value_bit = Wire.read();
return value_bit;
}
byte check_touch_pin(void) {
byte bit_data = digitalRead(INT_PIN);
while (bit_data == LOW) {
bit_data = digitalRead(INT_PIN);
Serial.println("INT Pin LOW");
PC8885_Clear_INT();
byte byte_data = read_sensor_touch();
Serial.print("data touch: ");
Serial.println(byte_data,BIN);
all_LED_ON();
}
Serial.println("INT Pin HIGH");
all_LED_stdby();
}
void all_LED_stdby(void) {
analogWrite(LED1, STND_BY_LED);
analogWrite(LED2, STND_BY_LED);
analogWrite(LED3, STND_BY_LED);
analogWrite(LED4, STND_BY_LED);
analogWrite(LED5, STND_BY_LED);
analogWrite(LED6, STND_BY_LED);
}
void all_LED_ON(void) {
analogWrite(LED1, 255);
analogWrite(LED2, 255);
analogWrite(LED3, 255);
analogWrite(LED4, 255);
analogWrite(LED5, 255);
analogWrite(LED6, 255);
}
void setup() {
// LED IO pin configuration
pinMode(LED1, OUTPUT);
pinMode(LED2, OUTPUT);
pinMode(LED3, OUTPUT);
pinMode(LED4, OUTPUT);
pinMode(LED5, OUTPUT);
pinMode(LED6, OUTPUT);
pinMode(INT_PIN, INPUT_PULLUP);
pinMode(SLEEP_PIN, OUTPUT);
digitalWrite(SLEEP_PIN, LOW);
// USART & I2C configuration
Serial.begin(9600);
Wire.begin();
Serial.println("Riff Electronics");
Serial.println("Touch Device for Infant Incubator");
delay(500);
// set stand by mode for LED
analogWrite(LED1, STND_BY_LED);
analogWrite(LED2, STND_BY_LED);
analogWrite(LED3, STND_BY_LED);
analogWrite(LED4, STND_BY_LED);
analogWrite(LED5, STND_BY_LED);
analogWrite(LED6, STND_BY_LED);
Serial.println("LED in low light");
PCF8885_SoftReset();
PC8885_Clear_INT();
Serial.println("Reset touch driver");
}
void loop() {
check_touch_pin();
byte data_Config = PCF8885_Read_Config();
Serial.print("Register Config : ");
Serial.println(data_Config,BIN);
delay(1000);
}