update digi2000

src/battery_utils.cpp

@@ -1,17 +1,17 @@
 /* Copyright (C) 2025 Ricardo Guzman - CA2RXU
- * 
+ *
  * This file is part of LoRa APRS iGate.
- * 
+ *
  * LoRa APRS iGate is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or 
+ * the Free Software Foundation, either version 3 of the License, or
  * (at your option) any later version.
- * 
+ *
  * LoRa APRS iGate is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  * GNU General Public License for more details.
- * 
+ *
  * You should have received a copy of the GNU General Public License
  * along with LoRa APRS iGate. If not, see <https://www.gnu.org/licenses/>.
  */
@@ -105,9 +105,9 @@ namespace BATTERY_Utils {
     void getI2CVoltageSensorAddress() {
         uint8_t err, addr;
         for(addr = 1; addr < 0x7F; addr++) {
-            #if defined(HELTEC_V3) || defined(HELTEC_V3_2) || defined(HELTEC_WSL_V3) || defined(HELTEC_WSL_V3_DISPLAY)
-                Wire1.beginTransmission(addr);
-                err = Wire1.endTransmission();
+            #ifdef SENSOR_I2C_BUS
+                SENSOR_I2C_BUS.beginTransmission(addr);
+                err = SENSOR_I2C_BUS.endTransmission();
             #else
                 Wire.beginTransmission(addr);
                 err = Wire.endTransmission();
@@ -145,7 +145,7 @@ namespace BATTERY_Utils {
         }
     }
 
-    float checkInternalVoltage() { 
+    float checkInternalVoltage() {
         #if defined(HAS_AXP192) || defined(HAS_AXP2101)
             if(POWER_Utils::isBatteryConnected()) {
                 return POWER_Utils::getBatteryVoltage();
@@ -153,7 +153,7 @@ namespace BATTERY_Utils {
                 return 0.0;
             }
         #else
-            
+
             #ifdef ADC_CTRL
                 POWER_Utils::adc_ctrl_ON();
             #endif
@@ -177,7 +177,7 @@ namespace BATTERY_Utils {
                         #endif
                     #endif
                 #endif
-                delay(3); 
+                delay(3);
             }
 
             #ifdef ADC_CTRL
@@ -241,7 +241,7 @@ namespace BATTERY_Utils {
             #else
                 extVoltage = ((((sampleSum/100.0)* adcReadingTransformation) + readingCorrection) * voltageDividerTransformation) - multiplyCorrection;
             #endif
-            
+
             return extVoltage; // raw voltage without mapping
 
             // return mapVoltage(voltage, 5.05, 6.32, 4.5, 5.5); // mapped voltage

src/digi_utils.cpp

@@ -43,24 +43,29 @@ extern bool             backupDigiMode;
 
 namespace DIGI_Utils {
 
-    String buildPacket(const String& path, const String& packet, bool thirdParty, bool crossFreq) {
-        String stationCallsign = (Config.tacticalCallsign == "" ? Config.callsign : Config.tacticalCallsign);
-        if (!crossFreq) {
-            String packetToRepeat = packet.substring(0, packet.indexOf(",") + 1);
-            String tempPath = path;
-            int digiMode = Config.digi.mode;
+    String cleanPathAsterisks(String path) {
+        String terms[] = {",WIDE1*", ",WIDE2*", "*"};
+        for (String term : terms) {
+            int index = path.indexOf(term);
+            if (index != -1) path.remove(index, term.length());     // less memory than: tempPath.replace("*", "");
+        }
+        return path;
+    }
 
-            if (path.indexOf("WIDE1-1") != -1 && (digiMode == 2 || digiMode == 3)) {
+    String buildPacket(const String& path, const String& packet, bool thirdParty, bool crossFreq) {
+        String stationCallsign  = (Config.tacticalCallsign == "" ? Config.callsign : Config.tacticalCallsign);
+        String suffix           = thirdParty ? ":}" : ":";
+        int suffixIndex         = packet.indexOf(suffix);
+        String packetToRepeat;
+        if (!crossFreq) {
+            int digiMode        = Config.digi.mode;
+            String tempPath     = path;
+
+            if (tempPath.indexOf("WIDE1-1") != -1 && (digiMode == 2 || digiMode == 3)) {    // WIDE1-1 Digipeater
+                if (tempPath.indexOf("*") != -1 ) return "";                                  // "*" shouldn't be in WIDE1-1 (only) type of packet
                 tempPath.replace("WIDE1-1", stationCallsign + "*");
-            } else if (path.indexOf("WIDE2-") != -1 && digiMode == 3) {
-                int wide1AsteriskIndex = path.indexOf(",WIDE1*");   // less memory than: tempPath.replace(",WIDE1*", "");
-                if (wide1AsteriskIndex != -1) {
-                    tempPath.remove(wide1AsteriskIndex, 7);
-                }
-                int asteriskIndex = path.indexOf("*");              // less memory than: tempPath.replace("*", "");
-                if (asteriskIndex != -1) {
-                    tempPath.remove(asteriskIndex, 1);
-                }
+            } else if (tempPath.indexOf("WIDE2-") != -1 && digiMode == 3) {                 // WIDE2-n Digipeater
+                tempPath = cleanPathAsterisks(path);
                 if (path.indexOf("WIDE2-1") != -1) {
                     tempPath.replace("WIDE2-1", stationCallsign + "*");
                 } else if (path.indexOf("WIDE2-2") != -1) {
@@ -69,32 +74,22 @@ namespace DIGI_Utils {
                     return "";
                 }
             }
+            packetToRepeat = packet.substring(0, packet.indexOf(",") + 1);
             packetToRepeat += tempPath;
-            packetToRepeat += APRS_IS_Utils::checkForStartingBytes(packet.substring(packet.indexOf(thirdParty ? ":}" : ":")));
-            return packetToRepeat;
         } else {   // CrossFreq Digipeater
-            String suffix   = thirdParty ? ":}" : ":";
-            int suffixIndex = packet.indexOf(suffix);
-            String packetToRepeat = packet.substring(0, suffixIndex);
-
-            String terms[] = {",WIDE1*", ",WIDE2*", "*"};
-            for (String term : terms) {
-                int index = packetToRepeat.indexOf(term);
-                if (index != -1) {
-                    packetToRepeat.remove(index, term.length());
-                }
-            }
+            packetToRepeat = cleanPathAsterisks(packet.substring(0, suffixIndex));
+            if (packetToRepeat.indexOf(stationCallsign) != -1) return "";                   // stationCallsign shouldn't be in path
             packetToRepeat += ",";
             packetToRepeat += stationCallsign;
             packetToRepeat += "*";
-            packetToRepeat += APRS_IS_Utils::checkForStartingBytes(packet.substring(suffixIndex));
-            return packetToRepeat;
         }
+        packetToRepeat += APRS_IS_Utils::checkForStartingBytes(packet.substring(suffixIndex));
+        return packetToRepeat;
     }
 
     String generateDigipeatedPacket(const String& packet, bool thirdParty){
         String temp;
-        if (thirdParty) { // only header is used
+        if (thirdParty) {   // only header is used
             const String& header = packet.substring(0, packet.indexOf(":}"));
             temp = header.substring(header.indexOf(">") + 1);
         } else {
@@ -104,7 +99,7 @@ namespace DIGI_Utils {
         int digiMode        = Config.digi.mode;
         bool crossFreq      = abs(Config.loramodule.txFreq - Config.loramodule.rxFreq) >= 125000;   // CrossFreq Digi
 
-        if (commaIndex > 2) {   // Packet has "path"
+        if (commaIndex > 2) {   // "path" found
             const String& path  = temp.substring(commaIndex + 1);
             if (digiMode == 2 || backupDigiMode) {
                 bool hasWide = path.indexOf("WIDE1-1") != -1;
@@ -167,13 +162,13 @@ namespace DIGI_Utils {
                     queryMessage = APRS_IS_Utils::processReceivedLoRaMessage(Sender, AddresseeAndMessage, thirdPartyPacket);
                 }
             }
-            if (!queryMessage) {
-                String loraPacket = generateDigipeatedPacket(packet.substring(3), thirdPartyPacket);
-                if (loraPacket != "") {
-                    STATION_Utils::addToOutputPacketBuffer(loraPacket);
-                    if (Config.digi.ecoMode != 1) displayToggle(true);
-                    lastScreenOn = millis();
-                }
+            if (queryMessage) return;                   // answer should not be repeated.
+
+            String loraPacket = generateDigipeatedPacket(packet.substring(3), thirdPartyPacket);
+            if (loraPacket != "") {
+                STATION_Utils::addToOutputPacketBuffer(loraPacket);
+                if (Config.digi.ecoMode != 1) displayToggle(true);
+                lastScreenOn = millis();
             }
         }
     }

src/power_utils.cpp

@@ -49,40 +49,23 @@ extern bool             stationCallsignIsValid;
 
 namespace POWER_Utils {
 
-    #ifdef VEXT_CTRL
-        void vext_ctrl_ON() {
-            #if VEXT_CTRL_INVERTED == 1
-                digitalWrite(VEXT_CTRL, Config.digi.ecoMode == 1 ? HIGH : LOW);
-            #else
-                digitalWrite(VEXT_CTRL, Config.digi.ecoMode == 1 ? LOW : HIGH);
-            #endif
-        }
-
-        void vext_ctrl_OFF() {
-            #if VEXT_CTRL_INVERTED == 1
-                digitalWrite(VEXT_CTRL, Config.digi.ecoMode == 1 ? LOW : HIGH);
-            #else
-                digitalWrite(VEXT_CTRL, Config.digi.ecoMode == 1 ? HIGH : LOW);
-            #endif
-        }
-    #endif
-
-
-    #ifdef ADC_CTRL
+    #ifdef ADC_CTRL_PIN
         void adc_ctrl_ON() {
-            #if ADC_CTRL_INVERTED == 1
-                digitalWrite(ADC_CTRL, LOW);
-            #else
-                digitalWrite(ADC_CTRL, HIGH);
-            #endif
+            digitalWrite(ADC_CTRL_PIN, ADC_CTRL_ON_STATE);
         }
 
         void adc_ctrl_OFF() {
-            #if ADC_CTRL_INVERTED == 1
-                digitalWrite(ADC_CTRL, HIGH);
-            #else
-                digitalWrite(ADC_CTRL, LOW);
-            #endif
+            digitalWrite(ADC_CTRL_PIN, !ADC_CTRL_ON_STATE);
+        }
+    #endif
+
+    #ifdef VEXT_CTRL_PIN
+        void vext_ctrl_ON() {
+            digitalWrite(VEXT_CTRL_PIN, Config.digi.ecoMode == 1 ? !VEXT_CTRL_ON_STATE : VEXT_CTRL_ON_STATE);
+        }
+
+        void vext_ctrl_OFF() {
+            digitalWrite(VEXT_CTRL_PIN, Config.digi.ecoMode == 1 ? VEXT_CTRL_ON_STATE : !VEXT_CTRL_ON_STATE);
         }
     #endif
 
@@ -313,12 +296,8 @@ namespace POWER_Utils {
             Wire.begin(OLED_SDA, OLED_SCL);
         #endif
 
-        #ifdef USE_WIRE_WITH_BOARD_I2C_PINS
-            Wire.begin(BOARD_I2C_SDA, BOARD_I2C_SCL);
-        #endif
-
-        #ifdef USE_WIRE1_WITH_BOARD_I2C_PINS
-            Wire1.begin(BOARD_I2C_SDA, BOARD_I2C_SCL);
+        #ifdef SENSOR_I2C_BUS
+            SENSOR_I2C_BUS.begin(BOARD_I2C_SDA, BOARD_I2C_SCL);
         #endif
 
         delay(1000);

src/wx_utils.cpp

@@ -61,9 +61,9 @@ namespace WX_Utils {
     void getWxModuleAddres() {
         uint8_t err, addr;
         for(addr = 1; addr < 0x7F; addr++) {
-            #if defined(HELTEC_V3) || defined(HELTEC_V3_2) || defined(HELTEC_WSL_V3) || defined(HELTEC_WSL_V3_DISPLAY)
-                Wire1.beginTransmission(addr);
-                err = Wire1.endTransmission();
+            #ifdef SENSOR_I2C_BUS
+                SENSOR_I2C_BUS.beginTransmission(addr);
+                err = SENSOR_I2C_BUS.endTransmission();
             #else
                 Wire.beginTransmission(addr);
                 #ifdef LIGHTGATEWAY_PLUS_1_0

variants/WEMOS_S2_MINI_DIY_LoRa/board_pinout.h

@@ -31,7 +31,7 @@
     #define GPIO_WAKEUP_PIN         GPIO_SEL_38
 
     //  I2C
-    #define USE_WIRE_WITH_BOARD_I2C_PINS
+    #define SENSOR_I2C_BUS          Wire
     #define BOARD_I2C_SDA           11
     #define BOARD_I2C_SCL           12
 

variants/XIAO_ESP32S3_WIO_SX1262/board_pinout.h

@@ -39,8 +39,8 @@
     #define INTERNAL_LED_PIN    48
 
     //  I2C
-    #define USE_WIRE_WITH_OLED_PINS
-    #define OLED_SDA            5
-    #define OLED_SCL            6
+    #define SENSOR_I2C_BUS      Wire
+    #define BOARD_I2C_SDA       5
+    #define BOARD_I2C_SCL       6
 
 #endif

variants/heltec-lora32-v2/board_pinout.h

@@ -48,7 +48,8 @@
     //  Aditional Config
     #define INTERNAL_LED_PIN        25
     #define BATTERY_PIN             37
-    #define ADC_CTRL                21
-    #define ADC_CTRL_INVERTED       1
+
+    #define ADC_CTRL_PIN            21
+    #define ADC_CTRL_ON_STATE       LOW
 
 #endif

variants/heltec-lora32-v2_915/board_pinout.h

@@ -48,7 +48,8 @@
     //  Aditional Config
     #define INTERNAL_LED_PIN        25
     #define BATTERY_PIN             37
+
     #define ADC_CTRL                21
-    #define ADC_CTRL_INVERTED       1
+    #define ADC_CTRL_ON_STATE       LOW
 
 #endif

variants/heltec_vision_master_e290/board_pinout.h

@@ -33,7 +33,7 @@
     #define GPIO_WAKEUP_PIN         GPIO_SEL_14
 
     //  I2C
-    #define USE_WIRE1_WITH_BOARD_I2C_PINS
+    #define SENSOR_I2C_BUS          Wire1
     #define BOARD_I2C_SDA           39
     #define BOARD_I2C_SCL           38
 
@@ -50,9 +50,10 @@
     //  Aditional Config
     #define INTERNAL_LED_PIN        45
     #define BATTERY_PIN             7
-    #define ADC_CTRL                46
-    #define ADC_CTRL_INVERTED       0
-    #define VEXT_CTRL               18
-    #define VEXT_CTRL_INVERTED      0
+
+    #define ADC_CTRL_PIN            46
+    #define ADC_CTRL_ON_STATE       HIGH
+    #define VEXT_CTRL_PIN           18
+    #define VEXT_CTRL_ON_STATE      HIGH
 
 #endif

variants/heltec_wifi_lora_32_V3/board_pinout.h

@@ -34,7 +34,7 @@
 
     //  I2C
     #define USE_WIRE_WITH_OLED_PINS
-    #define USE_WIRE1_WITH_BOARD_I2C_PINS
+    #define SENSOR_I2C_BUS          Wire1
     #define BOARD_I2C_SDA           41
     #define BOARD_I2C_SCL           42
 
@@ -53,9 +53,10 @@
     //  Aditional Config
     #define INTERNAL_LED_PIN        35
     #define BATTERY_PIN             1
-    #define VEXT_CTRL               36
-    #define VEXT_CTRL_INVERTED      0
-    #define ADC_CTRL                37
-    #define ADC_CTRL_INVERTED       1
+
+    #define ADC_CTRL_PIN            37
+    #define ADC_CTRL_ON_STATE       LOW
+    #define VEXT_CTRL_PIN           36
+    #define VEXT_CTRL_ON_STATE      HIGH
 
 #endif

variants/heltec_wifi_lora_32_V3_2/board_pinout.h

@@ -34,7 +34,7 @@
 
     //  I2C
     #define USE_WIRE_WITH_OLED_PINS
-    #define USE_WIRE1_WITH_BOARD_I2C_PINS
+    #define SENSOR_I2C_BUS          Wire1
     #define BOARD_I2C_SDA           41
     #define BOARD_I2C_SCL           42
 
@@ -53,9 +53,10 @@
     //  Aditional Config
     #define INTERNAL_LED_PIN        35
     #define BATTERY_PIN             1
-    #define VEXT_CTRL               36
-    #define VEXT_CTRL_INVERTED      1
-    #define ADC_CTRL                37
-    #define ADC_CTRL_INVERTED       0
+
+    #define ADC_CTRL_PIN            37
+    #define ADC_CTRL_ON_STATE       HIGH
+    #define VEXT_CTRL_PIN           36
+    #define VEXT_CTRL_ON_STATE      LOW
 
 #endif

variants/heltec_wifi_lora_32_V4/board_pinout.h

@@ -34,7 +34,7 @@
 
     //  I2C
     #define USE_WIRE_WITH_OLED_PINS
-    #define USE_WIRE1_WITH_BOARD_I2C_PINS
+    #define SENSOR_I2C_BUS          Wire1
     #define BOARD_I2C_SDA           41
     #define BOARD_I2C_SCL           42
 
@@ -53,10 +53,11 @@
     //  Aditional Config
     #define INTERNAL_LED_PIN        35
     #define BATTERY_PIN             1
-    #define VEXT_CTRL               36
-    #define VEXT_CTRL_INVERTED      1
-    #define ADC_CTRL                37
-    #define ADC_CTRL_INVERTED       0
+
+    #define ADC_CTRL_PIN            37
+    #define ADC_CTRL_ON_STATE       HIGH
+    #define VEXT_CTRL_PIN           36
+    #define VEXT_CTRL_ON_STATE      LOW
 
     //  GPS   ??
     #define VGNS_CTRL               34  // cambiar nombre para prender GPS ?

variants/heltec_wireless_paper_v1/board_pinout.h

@@ -33,7 +33,7 @@
     #define GPIO_WAKEUP_PIN         GPIO_SEL_14
 
     //  I2C
-    #define USE_WIRE1_WITH_BOARD_I2C_PINS
+    #define SENSOR_I2C_BUS          Wire1
     #define BOARD_I2C_SDA           37
     #define BOARD_I2C_SCL           36
 
@@ -50,9 +50,10 @@
     //  Aditional Config
     #define INTERNAL_LED_PIN        18
     #define BATTERY_PIN             20
-    #define ADC_CTRL                19
-    #define ADC_CTRL_INVERTED       1
-    #define VEXT_CTRL               45
-    #define VEXT_CTRL_INVERTED      1
+
+    #define ADC_CTRL_PIN            19
+    #define ADC_CTRL_ON_STATE       LOW
+    #define VEXT_CTRL_PIN           45
+    #define VEXT_CTRL_ON_STATE      LOW
 
 #endif

variants/heltec_wireless_paper_v1_2/board_pinout.h

@@ -33,7 +33,7 @@
     #define GPIO_WAKEUP_PIN         GPIO_SEL_14
 
     //  I2C
-    #define USE_WIRE1_WITH_BOARD_I2C_PINS
+    #define SENSOR_I2C_BUS          Wire1
     #define BOARD_I2C_SDA           37
     #define BOARD_I2C_SCL           36
 
@@ -50,9 +50,10 @@
     //  Aditional Config
     #define INTERNAL_LED_PIN        18
     #define BATTERY_PIN             20
-    #define ADC_CTRL                19
-    #define ADC_CTRL_INVERTED       1
-    #define VEXT_CTRL               45
-    #define VEXT_CTRL_INVERTED      1
+
+    #define ADC_CTRL_PIN            19
+    #define ADC_CTRL_ON_STATE       LOW
+    #define VEXT_CTRL_PIN           45
+    #define VEXT_CTRL_ON_STATE      LOW
 
 #endif

variants/heltec_wireless_stick/board_pinout.h

@@ -50,9 +50,11 @@
     //  Aditional Config
     #define INTERNAL_LED_PIN        35
     #define BATTERY_PIN             1
-    #define ADC_CTRL                37
-    #define VEXT_CTRL               36
-    #define VEXT_CTRL_INVERTED      1
+
+    #define ADC_CTRL_PIN            37
+    #define ADC_CTRL_ON_STATE       LOW
+    #define VEXT_CTRL_PIN           36
+    #define VEXT_CTRL_ON_STATE      LOW
 
     #define BOARD_I2C_SDA           41
     #define BOARD_I2C_SCL           42

variants/heltec_wireless_stick_lite_v3/board_pinout.h

@@ -33,16 +33,17 @@
     #define GPIO_WAKEUP_PIN         GPIO_SEL_14
 
     //  I2C
-    #define USE_WIRE1_WITH_BOARD_I2C_PINS
+    #define SENSOR_I2C_BUS          Wire1
     #define BOARD_I2C_SDA           41
     #define BOARD_I2C_SCL           42
 
     //  Aditional Config
     #define INTERNAL_LED_PIN        35
     #define BATTERY_PIN             1
-    #define ADC_CTRL                37
-    #define ADC_CTRL_INVERTED       1
-    #define VEXT_CTRL               36
-    #define VEXT_CTRL_INVERTED      1
+
+    #define ADC_CTRL_PIN            37
+    #define ADC_CTRL_ON_STATE       LOW
+    #define VEXT_CTRL_PIN           36
+    #define VEXT_CTRL_ON_STATE      LOW
 
 #endif

variants/heltec_wireless_stick_lite_v3_display/board_pinout.h

@@ -33,7 +33,7 @@
     #define GPIO_WAKEUP_PIN         GPIO_SEL_14
 
     //  I2C
-    #define USE_WIRE1_WITH_BOARD_I2C_PINS
+    #define SENSOR_I2C_BUS          Wire1
     #define BOARD_I2C_SDA           41
     #define BOARD_I2C_SCL           42
 
@@ -44,9 +44,10 @@
     //  Aditional Config
     #define INTERNAL_LED_PIN        35
     #define BATTERY_PIN             1
-    #define ADC_CTRL                37
-    #define ADC_CTRL_INVERTED       1
-    #define VEXT_CTRL               36
-    #define VEXT_CTRL_INVERTED      1
+
+    #define ADC_CTRL_PIN            37
+    #define ADC_CTRL_ON_STATE       LOW
+    #define VEXT_CTRL_PIN           36
+    #define VEXT_CTRL_ON_STATE      LOW
 
 #endif

variants/heltec_wireless_tracker/board_pinout.h

@@ -33,7 +33,7 @@
     #define GPIO_WAKEUP_PIN         GPIO_SEL_14
 
     //  I2C
-    #define USE_WIRE_WITH_BOARD_I2C_PINS
+    #define SENSOR_I2C_BUS          Wire
     #define BOARD_I2C_SDA           7
     #define BOARD_I2C_SCL           6
 
@@ -44,10 +44,11 @@
     //  Aditional Config
     #define INTERNAL_LED_PIN        18
     #define BATTERY_PIN             1
-    #define VEXT_CTRL               3   // To turn on GPS and TFT
-    #define VEXT_CTRL_INVERTED      0
-    #define ADC_CTRL                2   // HELTEC Wireless Tracker ADC_CTRL = HIGH powers the voltage divider to read BatteryPin. Only on V05 = V1.1
-    #define ADC_CTRL_INVERTED       0
+
+    #define ADC_CTRL_PIN            2   // HELTEC Wireless Tracker ADC_CTRL = HIGH powers the voltage divider to read BatteryPin. Only on V05 = V1.1
+    #define ADC_CTRL_ON_STATE       HIGH
+    #define VEXT_CTRL_PIN           3   // To turn on GPS and TFT
+    #define VEXT_CTRL_ON_STATE      HIGH
 
     //  GPS
     #define HAS_GPS

variants/ttgo_t_deck_GPS/board_pinout.h

@@ -33,7 +33,7 @@
     #define GPIO_WAKEUP_PIN         GPIO_SEL_45
 
     //  I2C
-    #define USE_WIRE_WITH_BOARD_I2C_PINS
+    #define SENSOR_I2C_BUS          Wire
     #define BOARD_I2C_SDA           18
     #define BOARD_I2C_SCL           8
 

variants/ttgo_t_deck_plus/board_pinout.h

@@ -33,7 +33,7 @@
     #define GPIO_WAKEUP_PIN         GPIO_SEL_45
 
     //  I2C
-    #define USE_WIRE_WITH_BOARD_I2C_PINS
+    #define SENSOR_I2C_BUS          Wire
     #define BOARD_I2C_SDA           18
     #define BOARD_I2C_SCL           8