Исправляем ошибку Adafruit_PCF8574 при инициализации

This commit is contained in:
2022-10-03 12:06:17 +03:00
parent 7659b3a700
commit 5e45b29c2f
2 changed files with 61 additions and 9 deletions

View File

@@ -1,22 +1,73 @@
#include "Global.h"
#include "classes/IoTItem.h"
#include "classes/IoTGpio.h"
#include <Adafruit_PCF8574.h>
/* Example for 8 input buttons that are connected from the GPIO expander pins to ground.
* Note the buttons must be connected with the other side of the switch to GROUND. There is
* a built in pull-up 'resistor' on each input, but no pull-down resistor capability.
*/
#include <Adafruit_BusIO_Register.h>
#include <Adafruit_I2CDevice.h>
#define PCF8574_I2CADDR_DEFAULT 0x20 ///< DS3502 default I2C address
void scanI2C();
class Adafruit_PCF8574_mod {
public:
Adafruit_PCF8574_mod() {};
bool begin(uint8_t i2c_address = PCF8574_I2CADDR_DEFAULT, TwoWire *wire = &Wire) {
i2c_dev = new Adafruit_I2CDevice(i2c_address, wire);
if (!i2c_dev->begin()) {
return false;
}
return true;
}
bool digitalWriteByte(uint8_t d) {
_writebuf = d;
return i2c_dev->write(&_writebuf, 1);
}
uint8_t digitalReadByte(void) {
i2c_dev->read(&_readbuf, 1);
return _readbuf;
}
bool digitalWrite(uint8_t pinnum, bool val) {
if (val) {
_writebuf |= 1 << pinnum;
} else {
_writebuf &= ~(1 << pinnum);
}
return i2c_dev->write(&_writebuf, 1);
}
bool pinMode(uint8_t pinnum, uint8_t val) {
if ((val == INPUT) || (val == INPUT_PULLUP)) {
_writebuf |= 1 << pinnum;
} else {
_writebuf &= ~(1 << pinnum);
}
return i2c_dev->write(&_writebuf, 1);
}
bool digitalRead(uint8_t pinnum) {
i2c_dev->read(&_readbuf, 1);
return (_readbuf >> pinnum) & 0x1;
}
private:
uint8_t _readbuf = 0, _writebuf = 0;
Adafruit_I2CDevice *i2c_dev;
};
class Pcf8574Driver : public IoTGpio {
private:
Adafruit_PCF8574 _pcf;
Adafruit_PCF8574_mod _pcf;
public:
Pcf8574Driver(int index, String addr) : IoTGpio(index) {
if (!_pcf.begin(hexStringToUint8(addr))) {
if (!_pcf.begin(hexStringToUint8(addr), &Wire)) {
Serial.println("PCF8574 Init Error.");
}
}
@@ -31,6 +82,7 @@ class Pcf8574Driver : public IoTGpio {
int digitalRead(uint8_t pin) {
return _pcf.digitalRead(pin);
//return 0;
}
void digitalInvert(uint8_t pin) {

View File

@@ -34,11 +34,11 @@
"devices": {
"esp32_4mb": [
"adafruit/Adafruit PCF8574@^1.0.0",
"adafruit/Adafruit BusIO @ ^1.13.0"
"adafruit/Adafruit BusIO @ ^1.13.2"
],
"esp8266_4mb": [
"adafruit/Adafruit PCF8574@^1.0.0",
"adafruit/Adafruit BusIO @ ^1.13.0"
"adafruit/Adafruit BusIO @ ^1.13.2"
]
}
}