xl9555_read.ino

Go to the documentation of this file.

 
#include <IoExpanderDrv.hpp>
 
#ifndef SENSOR_SDA
#define SENSOR_SDA  17
#endif
 
#ifndef SENSOR_SCL
#define SENSOR_SCL  18
#endif
 
#ifndef SENSOR_IRQ
#define SENSOR_IRQ  10
#endif
 
IoExpanderXL9555 expander;
 
void setup()
{
    Serial.begin(115200);
 
    // Set the interrupt input to input pull-up
    pinMode(SENSOR_IRQ, INPUT_PULLUP);
 
    /*
    *
    *    If the device address is not known, the 0xFF parameter can be passed in.
    *
    *    XL9555_UNKNOWN_ADDRESS  = 0xFF
    *
    *    If the device address is known, the device address is given
    *
    *    XL9555_SLAVE_ADDRESS0  = 0x20
    *    XL9555_SLAVE_ADDRESS1  = 0x21
    *    XL9555_SLAVE_ADDRESS2  = 0x22
    *    XL9555_SLAVE_ADDRESS3  = 0x23
    *    XL9555_SLAVE_ADDRESS4  = 0x24
    *    XL9555_SLAVE_ADDRESS5  = 0x25
    *    XL9555_SLAVE_ADDRESS6  = 0x26
    *    XL9555_SLAVE_ADDRESS7  = 0x27
    */
    const uint8_t chip_address = XL9555_UNKNOWN_ADDRESS;
 
    if (!expander.begin(Wire, chip_address, SENSOR_SDA, SENSOR_SCL)) {
        while (1) {
            Serial.println("Failed to find XL9555 - check your wiring!");
            delay(1000);
        }
    }
 
    // Set all pins as input
    expander.configPins(IoExpanderXL9555::PORT_ALL, INPUT);
}
 
void loop()
{
    Serial.print("PORT0:0b");
    Serial.print(expander.digitalReadPort(), BIN);
    Serial.print("\tPORT1:0b");
    Serial.println(expander.digitalReadPort(), BIN);
 
    //Allowable range of parameter input: IO0 ~ IO15
    Serial.println("IO0:\tIO1:\tIO2:\tIO3:\tIO4:\tIO5:\tIO6:\tIO7:\tIO8:\tIO9:\tIO10:\tIO11:\tIO12:\tIO13:\tIO14:\tIO15:\t");
    Serial.print(expander.digitalRead(0));
    Serial.print("\t");
    Serial.print(expander.digitalRead(1));
    Serial.print("\t");
    Serial.print(expander.digitalRead(2));
    Serial.print("\t");
    Serial.print(expander.digitalRead(3));
    Serial.print("\t");
    Serial.print(expander.digitalRead(4));
    Serial.print("\t");
    Serial.print(expander.digitalRead(5));
    Serial.print("\t");
    Serial.print(expander.digitalRead(6));
    Serial.print("\t");
    Serial.print(expander.digitalRead(7));
    Serial.print("\t");
 
    Serial.print(expander.digitalRead(8));
    Serial.print("\t");
    Serial.print(expander.digitalRead(9));
    Serial.print("\t");
    Serial.print(expander.digitalRead(10));
    Serial.print("\t");
    Serial.print(expander.digitalRead(11));
    Serial.print("\t");
    Serial.print(expander.digitalRead(12));
    Serial.print("\t");
    Serial.print(expander.digitalRead(13));
    Serial.print("\t");
    Serial.print(expander.digitalRead(14));
    Serial.print("\t");
    Serial.print(expander.digitalRead(15));
    Serial.println();
    delay(1000);
}