Add the possibility to insert address at begin()

Author: xreef

PCF8574.cpp

@@ -181,6 +181,12 @@ PCF8574::PCF8574(uint8_t address, uint8_t interruptPin,  void (*interruptFunctio
 
 	}
 
+bool PCF8574::begin(uint8_t address){
+	_address = address;
+	return PCF8574::begin();
+}
+
+
 /**
  * wake up i2c controller
  */

PCF8574.h

@@ -2,7 +2,7 @@
  * PCF8574 GPIO Port Expand
  *
  * AUTHOR:  Renzo Mischianti
- * VERSION: 2.3.6
+ * VERSION: 2.3.7
  *
  * https://www.mischianti.org/2019/01/02/pcf8574-i2c-digital-i-o-expander-fast-easy-usage/
  *
@@ -125,6 +125,7 @@ class PCF8574 {
 #endif
 
 	bool begin();
+	bool begin(uint8_t address);
 	void pinMode(uint8_t pin, uint8_t mode, uint8_t output_start = HIGH);
 
 	void encoder(uint8_t pinA, uint8_t pinB);

PCF8574_library.h

@@ -2,7 +2,7 @@
  * PCF8574 GPIO Port Expand
  *
  * AUTHOR:  Renzo Mischianti
- * VERSION: 2.3.6
+ * VERSION: 2.3.7
  *
  * https://www.mischianti.org/2019/01/02/pcf8574-i2c-digital-i-o-expander-fast-easy-usage/
  *

README.md

@@ -18,6 +18,7 @@
 #### If you need more pins [here](https://www.mischianti.org/2019/07/22/pcf8575-i2c-16-bit-digital-i-o-expander/) you can find the pcf8575 16bit version of the IC.
 
 ## Changelog
+ - 01/02/2024: v2.3.7 Add the possibility to insert address at begin()
  - 10/07/2023: v2.3.6 Support for Arduino UNO R4
  - 08/02/2023: v2.3.5 Fix STM32 support and add support for Raspberry Pi Pico and other rp2040 boards
  - 10/08/2022: v2.3.4 Add support for custom SERCOM interface of Arduino SAMD devices. Force SDA SCL to use GPIO numeration for STM32 bug (https://www.mischianti.org/forums/topic/compatible-with-stm32duino/). 

library.json

@@ -1,6 +1,6 @@
 {
   "name": "PCF8574 library",
-  "version": "2.3.6",
+  "version": "2.3.7",
   "keywords": "digital, i2c, encoder, expander, pcf8574, pcf8574a, esp32, esp8266, stm32, SAMD, Arduino, wire, rp2040, Raspberry",
   "description": "Most starred PCF8574 library. i2c digital expander for Arduino, Raspberry Pi Pico and rp2040 boards, esp32, SMT32 and ESP8266. Can read write digital values with only 2 wire. Very simple to use and encoder support.",
   "homepage": "https://www.mischianti.org/category/my-libraries/pcf8574/",

library.properties

@@ -1,5 +1,5 @@
 name=PCF8574 library
-version=2.3.6
+version=2.3.7
 author=Renzo Mischianti <[email protected]>
 maintainer=Renzo Mischianti <[email protected]>
 sentence=Most starred PCF8574 library for Arduino (standard and SAMD), Raspberry Pi Pico and rp2040 boards, ESP8266, smt32 and esp32