Add support for ArduinoStoneHMI library

- Add ::readBytes support
- Fix header defines
- RS485 inherits from HardwareSerial
- Update board name header symbol

Author: manchoz

src/AutomationCarrier.h

@@ -1,5 +1,5 @@
-#ifndef __AUTOMATION_CARRIER_H__
-#define __AUTOMATION_CARRIER_H__
+#ifndef __PORTENTA_MACHINE_CONTROL_H__
+#define __PORTENTA_MACHINE_CONTROL_H__
 
 #include "utility/Adafruit_MAX31865/Adafruit_MAX31865.h"
 #include "utility/THERMOCOUPLE/MAX31855.h"

src/utility/RS485/RS485.cpp

@@ -83,6 +83,11 @@ int RS485Class::read(void)
   return _serial->read();
 }
 
+size_t RS485Class::readBytes(char *buf, size_t length)
+{
+  return _serial->readBytes(buf, length);
+}
+
 void RS485Class::flush()
 {
   return _serial->flush();

src/utility/RS485/RS485.h

@@ -17,13 +17,13 @@
   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */
 
-#ifndef _RS485_H_INCLUDED
-#define _RS485_H_INCLUDED
+#ifndef _RS485_AUTOMATION_H_INCLUDED
+#define _RS485_AUTOMATION_H_INCLUDED
 
 #include "Arduino.h"
 #include "mbed.h"
 
-class RS485Class : public Stream {
+class RS485Class : public HardwareSerial {
   public:
     RS485Class(HardwareSerial& hwSerial, PinName txPin = NC, PinName dePin = NC, PinName rePin = NC);
 
@@ -33,6 +33,8 @@ class RS485Class : public Stream {
     virtual int available();
     virtual int peek();
     virtual int read(void);
+    virtual size_t readBytes(char *buf, size_t length);
+    virtual size_t readBytes(uint8_t *buf, size_t length) { return readBytes((char *)buf, length); };
     virtual void flush();
     virtual size_t write(uint8_t b);
     using Print::write; // pull in write(str) and write(buf, size) from Print