- Fix STM32 support and add support for Raspberry Pi Pico and other …

…rp2040 boards

    - 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/).
    - Force SDA SCL to use GPIO numeration (https://www.mischianti.org/forums/topic/cannot-set-sda-clk-on-esp8266/).
    - Fix the SDA SCL type #58 and add basic support for SAMD device.

library.json

@@ -0,0 +1,24 @@
+{
+  "name": "PCF8575 library",
+  "version": "1.1.0",
+  "keywords": "digital, i2c, encoder, expander, pcf8575, pcf8575a, esp32, esp8266, stm32, SAMD, Arduino, wire, Raspberry, rp2040",
+  "description": "PCF8575 library. i2c digital expander for 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/2019/07/22/pcf8575-i2c-16-bit-digital-i-o-expander/",
+  "authors":
+  [
+    {
+      "name": "Renzo Mischianti",
+      "email": "[email protected]",
+      "maintainer": true,
+      "url": "https://www.mischianti.org"
+    }
+  ],
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/xreef/PCF8575_library"
+  },
+  "license": "MIT",
+  "frameworks": "arduino",
+  "platforms": "*",
+  "headers": ["PCF8575.h, PCF8575_library.h"]
+}

library.properties

@@ -2,8 +2,8 @@ name=PCF8575 library
 version=1.1.0
 author=Renzo Mischianti <[email protected]>
 maintainer=Renzo Mischianti <[email protected]>
-sentence=PCF8575, library for Arduino, ESP8266, smt32 and esp32  
-paragraph=i2c 16bits digital expander with Arduino, esp32, smt32 and ESP8266. Can read write digital values with only 2 wire. Very simple and encoder support. Uncommet NOT_SEQUENTIAL_PINOUT define to have pins like datasheet and not sequential one.
+sentence=PCF8575, library for Arduino, Raspberry Pi Pico and rp2040 boards, esp32, SMT32 and ESP8266.  
+paragraph=i2c 16bits digital expander with 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 and encoder support. Uncommet NOT_SEQUENTIAL_PINOUT define to have pins like datasheet and not sequential one.
 category=Signal Input/Output
 url=https://www.mischianti.org/2019/07/22/pcf8575-i2c-16-bit-digital-i-o-expander/
 repository=https://github.com/xreef/PCF8575_library