Добавляем модуль PCF8574

This commit is contained in:
2022-10-03 01:02:12 +03:00
parent 615c645aaf
commit 6b47aac021
2 changed files with 131 additions and 0 deletions

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#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.
*/
void scanI2C();
class Pcf8574Driver : public IoTGpio {
private:
Adafruit_PCF8574 _pcf;
public:
Pcf8574Driver(int index, String addr) : IoTGpio(index) {
if (!_pcf.begin(hexStringToUint8(addr))) {
Serial.println("PCF8574 Init Error.");
}
}
void pinMode(uint8_t pin, uint8_t mode) {
_pcf.pinMode(pin, mode);
}
void digitalWrite(uint8_t pin, uint8_t val) {
_pcf.digitalWrite(pin, val);
}
int digitalRead(uint8_t pin) {
return _pcf.digitalRead(pin);
}
void digitalInvert(uint8_t pin) {
_pcf.digitalWrite(pin, 1 - _pcf.digitalRead(pin));
}
~Pcf8574Driver() {};
};
class Pcf8574 : public IoTItem {
private:
Pcf8574Driver* _driver;
public:
Pcf8574(String parameters) : IoTItem(parameters) {
_driver = nullptr;
String addr;
jsonRead(parameters, "addr", addr);
if (addr == "") {
scanI2C();
return;
}
int index;
jsonRead(parameters, "index", index);
if (index > 4) {
Serial.println("Pcf8574 wrong index. Must be 0 - 4");
return;
}
_driver = new Pcf8574Driver(index, addr);
}
void doByInterval() {}
//возвращает ссылку на экземпляр класса Pcf8574Driver
IoTGpio* getGpioDriver() {
return _driver;
}
~Pcf8574() {
delete _driver;
};
};
void* getAPI_Pcf8574(String subtype, String param) {
if (subtype == F("Pcf8574")) {
return new Pcf8574(param);
} else {
return nullptr;
}
}

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{
"menuSection": "Исполнительные устройства",
"configItem": [{
"name": "Расширитель портов Pcf8574",
"type": "Reading",
"subtype": "Pcf8574",
"id": "Pcf",
"widget": "",
"page": "",
"descr": "",
"int": "0",
"addr": "0x20",
"index": 1
}],
"about": {
"authorName": "Serghei Crasnicov",
"authorContact": "https://t.me/Serghei63",
"authorGit": "https://github.com/Serghei63",
"specialThanks": "Ilya Belyakov @Biveraxe , @AEV_LAB ",
"moduleName": "Pcf8574",
"moduleVersion": "1.0",
"moduleDesc": "Добавляет в систему дополнительные GPIO для элементов, которые поддерживают такую функцию.",
"propInfo": {
"int": "Не используется",
"addr": "Адрес устройства на шине, обычно 0x20",
"index": "Значения от 1 до 4, где при выборе 1 будет нумерация pin 100-115, при выборе 2 200-215 и т.д."
}
},
"defActive": true,
"devices": {
"esp32_4mb": [
"adafruit/Adafruit PCF8574@^1.0.0",
"adafruit/Adafruit BusIO @ ^1.13.0"
],
"esp8266_4mb": [
"adafruit/Adafruit PCF8574@^1.0.0",
"adafruit/Adafruit BusIO @ ^1.13.0"
]
}
}