Add build flags for global i2c & SPI pins

Author: ezcGman

wled00/wled.h

@@ -130,7 +130,7 @@
   #include "src/dependencies/dmx/ESPDMX.h"
  #else //ESP32
   #include "src/dependencies/dmx/SparkFunDMX.h"
- #endif  
+ #endif
 #endif
 
 #include "src/dependencies/e131/ESPAsyncE131.h"
@@ -393,8 +393,8 @@ WLED_GLOBAL bool arlsForceMaxBri _INIT(false);                    // enable to f
  #ifdef ESP8266
   WLED_GLOBAL DMXESPSerial dmx;
  #else //ESP32
-  WLED_GLOBAL SparkFunDMX dmx; 
- #endif 
+  WLED_GLOBAL SparkFunDMX dmx;
+ #endif
 WLED_GLOBAL uint16_t e131ProxyUniverse _INIT(0);                  // output this E1.31 (sACN) / ArtNet universe via MAX485 (0 = disabled)
 #endif
 WLED_GLOBAL uint16_t e131Universe _INIT(1);                       // settings for E1.31 (sACN) protocol (only DMX_MODE_MULTIPLE_* can span over consequtive universes)
@@ -578,7 +578,7 @@ WLED_GLOBAL int16_t currentPlaylist _INIT(-1);
 //still used for "PL=~" HTTP API command
 WLED_GLOBAL byte presetCycCurr _INIT(0);
 WLED_GLOBAL byte presetCycMin _INIT(1);
-WLED_GLOBAL byte presetCycMax _INIT(5); 
+WLED_GLOBAL byte presetCycMax _INIT(5);
 
 // realtime
 WLED_GLOBAL byte realtimeMode _INIT(REALTIME_MODE_INACTIVE);
@@ -676,11 +676,37 @@ WLED_GLOBAL uint16_t ledMaps _INIT(0); // bitfield representation of available l
 // Usermod manager
 WLED_GLOBAL UsermodManager usermods _INIT(UsermodManager());
 
-WLED_GLOBAL int8_t i2c_sda  _INIT(-1);      // global I2C SDA pin [HW_PIN_SDA] (used for usermods)
-WLED_GLOBAL int8_t i2c_scl  _INIT(-1);      // global I2C SCL pin [HW_PIN_SCL] (used for usermods)
-WLED_GLOBAL int8_t spi_mosi _INIT(-1);      // global SPI DATA/MOSI pin [HW_PIN_DATASPI] (used for usermods)
-WLED_GLOBAL int8_t spi_miso _INIT(-1);      // global SPI DATA/MISO pin [HW_PIN_MISOSPI] (used for usermods)
-WLED_GLOBAL int8_t spi_sclk _INIT(-1);      // global SPI CLOCK/SCLK pin [HW_PIN_CLOCKSPI] (used for usermods)
+// global I2C SDA pin [HW_PIN_SDA] (used for usermods)
+#ifndef I2CSDAPIN
+WLED_GLOBAL int8_t i2c_sda  _INIT(-1);
+#else
+WLED_GLOBAL int8_t i2c_sda  _INIT(I2CSDAPIN);
+#endif
+// global I2C SCL pin [HW_PIN_SCL] (used for usermods)
+#ifndef I2CSCLPIN
+WLED_GLOBAL int8_t i2c_scl  _INIT(-1);
+#else
+WLED_GLOBAL int8_t i2c_scl  _INIT(I2CSCLPIN);
+#endif
+
+// global SPI DATA/MOSI pin [HW_PIN_DATASPI] (used for usermods)
+#ifndef SPIMOSIPIN
+WLED_GLOBAL int8_t spi_mosi  _INIT(-1);
+#else
+WLED_GLOBAL int8_t spi_mosi  _INIT(SPIMOSIPIN);
+#endif
+// global SPI DATA/MISO pin [HW_PIN_MISOSPI] (used for usermods)
+#ifndef SPIMISOPIN
+WLED_GLOBAL int8_t spi_miso  _INIT(-1);
+#else
+WLED_GLOBAL int8_t spi_miso  _INIT(SPIMISOPIN);
+#endif
+// global SPI CLOCK/SCLK pin [HW_PIN_CLOCKSPI] (used for usermods)
+#ifndef SPISCLKPIN
+WLED_GLOBAL int8_t spi_sclk  _INIT(-1);
+#else
+WLED_GLOBAL int8_t spi_sclk  _INIT(SPISCLKPIN);
+#endif
 
 // global ArduinoJson buffer
 WLED_GLOBAL StaticJsonDocument<JSON_BUFFER_SIZE> doc;