TX power level can now be set

TX power level can now be set either initially using the configuration system eg. bleGamepadConfig.setTXPowerLevel(txPowerLevel);  
Defaults to 9 if not set
Range: -12 to 9 dBm and the only valid values are: -12, -9, -6, -3, 0, 3, 6 and 9

TX power can also be set at any time using bleGamepad.setTXPower(int8_t)

You can also get the current TX power level by using bleGamepad.getTXPower(int8_t)

Author: lemmingDev

BleGamepad.cpp

@@ -45,6 +45,7 @@ std::string softwareRevision;
 std::string serialNumber;
 std::string firmwareRevision;
 std::string hardwareRevision;
+int8_t powerLevel;
 
 bool enableOutputReport = false;
 uint16_t outputReportLength = 64;
@@ -97,6 +98,8 @@ void BleGamepad::begin(BleGamepadConfiguration *config)
 
   enableOutputReport = configuration.getEnableOutputReport();
   outputReportLength = configuration.getOutputReportLength();
+  
+  powerLevel = configuration.getTXPowerLevel();
 
 #ifndef PNPVersionField
   uint8_t high = highByte(vid);
@@ -1575,12 +1578,24 @@ String BleGamepad::getDeviceManufacturer()
   return this->deviceManufacturer.c_str();
 }
 
+int8_t BleGamepad::getTXPowerLevel()
+{
+  return NimBLEDevice::getPower();
+}
+
+void BleGamepad::setTXPowerLevel(int8_t level)
+{
+  powerLevel = level;
+  NimBLEDevice::setPower(powerLevel);  // The only valid values are: -12, -9, -6, -3, 0, 3, 6 and 9
+}
+
 
 void BleGamepad::taskServer(void *pvParameter)
 {
   BleGamepad *BleGamepadInstance = (BleGamepad *)pvParameter; // static_cast<BleGamepad *>(pvParameter);
 
   NimBLEDevice::init(BleGamepadInstance->deviceName);
+  NimBLEDevice::setPower(powerLevel); // Set transmit power for advertising (Range: -127 to +9 dBm)
   NimBLEServer *pServer = NimBLEDevice::createServer();
   pServer->setCallbacks(BleGamepadInstance->connectionStatus);
   pServer->advertiseOnDisconnect(true);

BleGamepad.h

@@ -109,6 +109,8 @@ class BleGamepad
     bool isConnected(void);
     void resetButtons();
     void setBatteryLevel(uint8_t level);
+	void setTXPowerLevel(int8_t level = 9);
+	int8_t getTXPowerLevel();
     uint8_t batteryLevel;
     std::string deviceManufacturer;
     std::string deviceName;

BleGamepadConfiguration.cpp

@@ -21,7 +21,8 @@ BleGamepadConfiguration::BleGamepadConfiguration() : _controllerType(CONTROLLER_
                                                      _firmwareRevision("0.7.0"),
                                                      _hardwareRevision("1.0.0"),
                                                      _enableOutputReport(false),
-                                                     _outputReportLength(64)
+                                                     _outputReportLength(64),
+													 _powerLevel(9)
 {
 }
 
@@ -123,6 +124,8 @@ char *BleGamepadConfiguration::getFirmwareRevision(){ return _firmwareRevision;
 char *BleGamepadConfiguration::getHardwareRevision(){ return _hardwareRevision; }
 bool BleGamepadConfiguration::getEnableOutputReport(){ return _enableOutputReport; }
 uint16_t BleGamepadConfiguration::getOutputReportLength(){ return _outputReportLength; }
+int8_t BleGamepadConfiguration::getTXPowerLevel(){ return _powerLevel; }	// Returns the power level that was set as the server started
+
 void BleGamepadConfiguration::setWhichSpecialButtons(bool start, bool select, bool menu, bool home, bool back, bool volumeInc, bool volumeDec, bool volumeMute)
 {
     _whichSpecialButtons[START_BUTTON] = start;
@@ -196,3 +199,4 @@ void BleGamepadConfiguration::setFirmwareRevision(char *value) { _firmwareRevisi
 void BleGamepadConfiguration::setHardwareRevision(char *value) { _hardwareRevision = value; }
 void BleGamepadConfiguration::setEnableOutputReport(bool value) { _enableOutputReport = value; }
 void BleGamepadConfiguration::setOutputReportLength(uint16_t value) { _outputReportLength = value; }
+void BleGamepadConfiguration::setTXPowerLevel(int8_t value) { _powerLevel = value; }

BleGamepadConfiguration.h

@@ -224,6 +224,7 @@ class BleGamepadConfiguration
     char *_hardwareRevision;
     bool _enableOutputReport;
     uint16_t _outputReportLength;
+	int8_t _powerLevel;
 
 public:
     BleGamepadConfiguration();
@@ -276,6 +277,7 @@ class BleGamepadConfiguration
     char *getHardwareRevision();
     bool getEnableOutputReport();
     uint16_t getOutputReportLength();
+	int8_t getTXPowerLevel();
 
     void setControllerType(uint8_t controllerType);
     void setAutoReport(bool value);
@@ -320,6 +322,7 @@ class BleGamepadConfiguration
     void setHardwareRevision(char *value);
     void setEnableOutputReport(bool value);
     void setOutputReportLength(uint16_t value);
+	void setTXPowerLevel(int8_t value);
 };
 
 #endif

examples/CharacteristicsConfiguration/CharacteristicsConfiguration.ino

@@ -1,41 +1,57 @@
 /*
- * Sets BLE characteristic options
- * Use BLE Scanner etc on Android to see them
- */
+   Sets BLE characteristic options
+   Use BLE Scanner etc on Android to see them
+
+   Also shows how to set transmit power during initial configuration,
+   or at any stage whilst running by using bleGamepad.setTXPowerLevel(int8_t)
+
+   The only valid values are: -12, -9, -6, -3, 0, 3, 6 and 9
+   Values correlate to dbm
+
+   You can get the currently set TX power level by calling bleGamepad.setTXPowerLevel()
+
+*/
 
 #include <Arduino.h>
 #include <BleGamepad.h>
 
+int8_t txPowerLevel = 3;
+
 BleGamepad bleGamepad("Custom Contoller Name", "lemmingDev", 100); // Set custom device name, manufacturer and initial battery level
 BleGamepadConfiguration bleGamepadConfig;                          // Create a BleGamepadConfiguration object to store all of the options
-    
+
 void setup()
 {
-    Serial.begin(115200);
-    Serial.println("Starting BLE work!");
-    bleGamepadConfig.setAutoReport(false);
-    bleGamepadConfig.setControllerType(CONTROLLER_TYPE_GAMEPAD); // CONTROLLER_TYPE_JOYSTICK, CONTROLLER_TYPE_GAMEPAD (DEFAULT), CONTROLLER_TYPE_MULTI_AXIS
-    bleGamepadConfig.setVid(0xe502);
-    bleGamepadConfig.setPid(0xabcd);
-    
-    bleGamepadConfig.setModelNumber("1.0");
-    bleGamepadConfig.setSoftwareRevision("Software Rev 1");
-    bleGamepadConfig.setSerialNumber("9876543210");
-    bleGamepadConfig.setFirmwareRevision("2.0");
-    bleGamepadConfig.setHardwareRevision("1.7");
-    
-    // Some non-Windows operating systems and web based gamepad testers don't like min axis set below 0, so 0 is set by default
-    //bleGamepadConfig.setAxesMin(0x8001); // -32767 --> int16_t - 16 bit signed integer - Can be in decimal or hexadecimal
-    bleGamepadConfig.setAxesMin(0x0000); // 0 --> int16_t - 16 bit signed integer - Can be in decimal or hexadecimal    
-    bleGamepadConfig.setAxesMax(0x7FFF); // 32767 --> int16_t - 16 bit signed integer - Can be in decimal or hexadecimal     
-    
-    bleGamepad.begin(&bleGamepadConfig); // Begin gamepad with configuration options
+  Serial.begin(115200);
+  Serial.println("Starting BLE work!");
+  bleGamepadConfig.setAutoReport(false);
+  bleGamepadConfig.setControllerType(CONTROLLER_TYPE_GAMEPAD); // CONTROLLER_TYPE_JOYSTICK, CONTROLLER_TYPE_GAMEPAD (DEFAULT), CONTROLLER_TYPE_MULTI_AXIS
+  bleGamepadConfig.setVid(0xe502);
+  bleGamepadConfig.setPid(0xabcd);
+  bleGamepadConfig.setTXPowerLevel(txPowerLevel);  // Defaults to 9 if not set. (Range: -12 to 9 dBm)
+
+  bleGamepadConfig.setModelNumber("1.0");
+  bleGamepadConfig.setSoftwareRevision("Software Rev 1");
+  bleGamepadConfig.setSerialNumber("9876543210");
+  bleGamepadConfig.setFirmwareRevision("2.0");
+  bleGamepadConfig.setHardwareRevision("1.7");
+
+  // Some non-Windows operating systems and web based gamepad testers don't like min axis set below 0, so 0 is set by default
+  //bleGamepadConfig.setAxesMin(0x8001); // -32767 --> int16_t - 16 bit signed integer - Can be in decimal or hexadecimal
+  bleGamepadConfig.setAxesMin(0x0000); // 0 --> int16_t - 16 bit signed integer - Can be in decimal or hexadecimal
+  bleGamepadConfig.setAxesMax(0x7FFF); // 32767 --> int16_t - 16 bit signed integer - Can be in decimal or hexadecimal
+
+  bleGamepad.begin(&bleGamepadConfig); // Begin gamepad with configuration options
+  
+  // Change power level to 6
+  bleGamepad.setTXPowerLevel(6);
+
 }
 
 void loop()
 {
-    if (bleGamepad.isConnected())
-    {
+  if (bleGamepad.isConnected())
+  {
 
-    }
+  }
 }

examples/GetPeerInfo/GetPeerInfo.ino

@@ -69,6 +69,7 @@ void loop()
       Serial.println(bleGamepad.configuration.getVid(), HEX);
       Serial.println(bleGamepad.configuration.getPid(), HEX);
       Serial.println(bleGamepad.configuration.getGuidVersion());
+	  Serial.println(bleGamepad.configuration.getTXPowerLevel());
       Serial.println();
       delay(1000);
     }

keywords.txt

@@ -158,6 +158,8 @@ enterPairingMode KEYWORD2
 getPeerInfo KEYWORD2
 getDeviceName KEYWORD2
 getDeviceManufacturer KEYWORD2
+getTXPowerLevel KEYWORD2
+setTXPowerLevel KEYWORD2
 
 #######################################
 # Constants