Revert "ESP32 - use HardwareSerial instead of SoftwareSerial"

This reverts commit ec686e469e.

.travis.yml

@@ -6,10 +6,6 @@ env:
     - BOARD="arduino:avr:uno"
     - BOARD="arduino:avr:leonardo"
     - BOARD="arduino:avr:mega:cpu=atmega2560"
-    - HARDWARE=espressif/esp32 \
-      CORE=https://github.com/espressif/arduino-esp32/archive/70d0d4648766cea047613062ed50a9ecfc9de31f.tar.gz \
-      BOARD=espressif:esp32:esp32
-
 
 before_install:
   # install Arduino IDE

src/ISerial.cpp

@@ -9,11 +9,7 @@ void ISerial::begin(long speed) {
 }
 
 bool ISerial::listen() {
-#ifndef ESP32
   return(_mod->ModuleSerial->listen());
-#else
-  return true;
-#endif
 }
 
 void ISerial::end() {
@@ -21,27 +17,15 @@ void ISerial::end() {
 }
 
 bool ISerial::isListening() {
-#ifndef ESP32
   return(_mod->ModuleSerial->isListening());
-#else
-  return true;
-#endif
 }
 
 bool ISerial::stopListening() {
-#ifndef ESP32
   return(_mod->ModuleSerial->stopListening());
-#else
-  return true;
-#endif
 }
 
 bool ISerial::overflow() {
-#ifndef ESP32
   return(_mod->ModuleSerial->overflow());
-#else
-  return true;
-#endif
 }
 
 int ISerial::peek() {

src/Module.cpp

@@ -1,17 +1,13 @@
 #include "Module.h"
 
-Module::Module(int rx, int tx, int sernum) {
+Module::Module(int rx, int tx) {
   _cs = -1;
   _rx = rx;
   _tx = tx;
   _int0 = -1;
   _int1 = -1;
 
-#ifndef ESP32
   ModuleSerial = new SoftwareSerial(_rx, _tx);
-#else
-  ModuleSerial = new HardwareSerial(sernum);
-#endif
 }
 
 Module::Module(int cs, int int0, int int1, SPIClass& spi, SPISettings spiSettings) {
@@ -24,7 +20,7 @@ Module::Module(int cs, int int0, int int1, SPIClass& spi, SPISettings spiSetting
   _spiSettings = spiSettings;
 }
 
-Module::Module(int cs, int int0, int int1, int rx, int tx, SPIClass& spi, SPISettings spiSettings, int sernum) {
+Module::Module(int cs, int int0, int int1, int rx, int tx, SPIClass& spi, SPISettings spiSettings) {
   _cs = cs;
   _rx = rx;
   _tx = tx;
@@ -33,11 +29,7 @@ Module::Module(int cs, int int0, int int1, int rx, int tx, SPIClass& spi, SPISet
   _spi = &spi;
   _spiSettings = spiSettings;
 
-#ifndef ESP32
   ModuleSerial = new SoftwareSerial(_rx, _tx);
-#else
-  ModuleSerial = new HardwareSerial(sernum);
-#endif
 }
 
 Module::Module(int cs, int int0, int int1, int int2, SPIClass& spi, SPISettings spiSettings) {
@@ -59,11 +51,7 @@ void Module::init(uint8_t interface, uint8_t gpio) {
       _spi->begin();
       break;
     case USE_UART:
-#ifndef ESP32
       ModuleSerial->begin(baudrate);
-#else
-      ModuleSerial->begin(baudrate, _rx, _tx);
-#endif
       break;
     case USE_I2C:
       break;

src/Module.h

@@ -3,9 +3,7 @@
 
 #include <SPI.h>
 //#include <Wire.h>
-#ifndef ESP32
 #include <SoftwareSerial.h>
-#endif
 
 #include "TypeDef.h"
 
@@ -24,10 +22,8 @@ class Module {
       \param tx Arduino pin to be used as Tx pin for SoftwareSerial communication.
 
       \param rx Arduino pin to be used as Rx pin for SoftwareSerial communication.
-
-      \param sernum number of the HW serial to be used on ESP32. Defaults to 2.
     */
-    Module(int tx, int rx, int sernum = 2);
+    Module(int tx, int rx);
 
     /*!
       \brief SPI-based module constructor.
@@ -77,21 +73,15 @@ class Module {
       \param spi SPI interface to be used. Defaults to Arduino hardware SPI interface, can also use software SPI implementations.
 
       \param spiSettings SPI interface settings. Defaults to 2 MHz clock, MSB first, mode 0.
-
-      \param sernum number of the HW serial to be used on ESP32. Defaults to 2.
     */
-    Module(int cs, int int0, int int1, int rx, int tx, SPIClass& spi = SPI, SPISettings spiSettings = SPISettings(2000000, MSBFIRST, SPI_MODE0), int sernum = 2);
+    Module(int cs, int int0, int int1, int rx, int tx, SPIClass& spi = SPI, SPISettings spiSettings = SPISettings(2000000, MSBFIRST, SPI_MODE0));
 
     // public member variables
 
     /*!
       \brief Internal SoftwareSerial instance.
     */
-#ifndef ESP32
     SoftwareSerial* ModuleSerial;
-#else
-	HardwareSerial* ModuleSerial;
-#endif
 
     /*!
       \brief Baud rate of SoftwareSerial UART communication. Defaults to 9600 baud.