diff --git a/.idea/codeStyles/codeStyleConfig.xml b/.idea/codeStyles/codeStyleConfig.xml
new file mode 100644
index 0000000..a55e7a1
--- /dev/null
+++ b/.idea/codeStyles/codeStyleConfig.xml
@@ -0,0 +1,5 @@
+<component name="ProjectCodeStyleConfiguration">
+  <state>
+    <option name="PREFERRED_PROJECT_CODE_STYLE" value="Default" />
+  </state>
+</component>
\ No newline at end of file
diff --git a/src/main.cpp b/src/main.cpp
index 5c9a101..3fa0b6d 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -5,11 +5,11 @@
 #define OUTPIN_N PB13
 #define HVGENPIN PB9
 
-HardwareTimer *shockTimer;
+HardwareTimer* shockTimer;
 uint32_t shockPwmChannel;
 uint32_t shockPwmChannel_N;
 
-HardwareTimer *hvTimer;
+HardwareTimer* hvTimer;
 uint32_t hvPwmChannel;
 
 uint32_t frequency = 50;
@@ -18,6 +18,7 @@ uint8_t deadTime = 50;
 
 uint32_t hvFrequency = 250000;
 uint8_t hvDutyCycle = 61;
+
 /**
  * output = red, green jumper wire
  * input = yellow
@@ -25,26 +26,26 @@ uint8_t hvDutyCycle = 61;
  */
 
 void setup(void) {
-  pinMode(PA0, INPUT_ANALOG);
-  pinMode(LED_BUILTIN, OUTPUT);
+	pinMode(PA0, INPUT_ANALOG);
+	pinMode(LED_BUILTIN, OUTPUT);
 
-  TIM_BreakDeadTimeConfigTypeDef sBreakDeadTimeConfig = {0};
+	TIM_BreakDeadTimeConfigTypeDef sBreakDeadTimeConfig = {0};
 
-  // https://github.com/ahmetonat/STM32F103-ADC-DMA-example/blob/master/Src/stm32f1xx_hal_msp.c
-  // https://www.stm32duino.com/viewtopic.php?f=41&t=110
-  // https://controllerstech.com/dma-with-adc-using-registers-in-stm32/
-  // https://stm32duinoforum.com/forum/viewtopic_f_48_t_4399.html
+	// https://github.com/ahmetonat/STM32F103-ADC-DMA-example/blob/master/Src/stm32f1xx_hal_msp.c
+	// https://www.stm32duino.com/viewtopic.php?f=41&t=110
+	// https://controllerstech.com/dma-with-adc-using-registers-in-stm32/
+	// https://stm32duinoforum.com/forum/viewtopic_f_48_t_4399.html
 
-	TIM_TypeDef *shockInstance = (TIM_TypeDef *)pinmap_peripheral(digitalPinToPinName(OUTPIN), PinMap_PWM);
+	TIM_TypeDef* shockInstance = (TIM_TypeDef*) pinmap_peripheral(digitalPinToPinName(OUTPIN), PinMap_PWM);
 	shockPwmChannel = STM_PIN_CHANNEL(pinmap_function(digitalPinToPinName(OUTPIN), PinMap_PWM));
 	shockPwmChannel_N = STM_PIN_CHANNEL(pinmap_function(digitalPinToPinName(OUTPIN_N), PinMap_PWM));
 	shockTimer = new HardwareTimer(shockInstance);
 
-	TIM_TypeDef *hvInstance = (TIM_TypeDef *)pinmap_peripheral(digitalPinToPinName(HVGENPIN), PinMap_PWM);
+	TIM_TypeDef* hvInstance = (TIM_TypeDef*) pinmap_peripheral(digitalPinToPinName(HVGENPIN), PinMap_PWM);
 	hvPwmChannel = STM_PIN_CHANNEL(pinmap_function(digitalPinToPinName(HVGENPIN), PinMap_PWM));
 	hvTimer = new HardwareTimer(hvInstance);
 	// hvTimer->getHandle()->Init.CounterMode = TIM_COUNTERMODE_CENTERALIGNED3;
-    hvTimer->setPWM(hvPwmChannel, HVGENPIN, hvFrequency, hvDutyCycle);
+	hvTimer->setPWM(hvPwmChannel, HVGENPIN, hvFrequency, hvDutyCycle);
 
 	Serial.begin(0);
 
@@ -57,7 +58,7 @@ void setup(void) {
 
 	shockTimer->setMode(shockPwmChannel_N, TIMER_OUTPUT_COMPARE_PWM1, OUTPIN_N);
 	shockTimer->setPWM(shockPwmChannel, OUTPIN, frequency, dutyCycle);
-	TIM1->CCER |= TIM_CCER_CC1NE; // Enable time r1 complementare output (channel 1)
+	TIM1->CCER |= TIM_CCER_CC1NE; // Enable timer 1 complementary output (channel 1)
 
 	sBreakDeadTimeConfig.BreakState = TIM_BREAK_ENABLE;
 	sBreakDeadTimeConfig.DeadTime = deadTime;
@@ -70,22 +71,16 @@ void setup(void) {
 	// LL_TIM_OC_SetDeadTime(TIM1, 50);
 	// shockInstance->BDTR |= 0xFF;
 
-    // with register manipulation, approx 14ns per increment 0 to 128
-    // (DTG Bits 7:0) -> DGT Bit 2|5 = 00100100 = 560ns
-    // bitSet(TIMER1_BASE->BDTR, 2);
-    // bitSet(TIMER1_BASE->BDTR, 5);
-
-	// shockTimer->setPWM(shockPwmChannel, OUTPIN_N, frequency, dutyCycle);
-	// shockTimer->setPWM(shockPwmChannel, OUTPIN_N, frequency, dutyCycle);
-	// setMode(shockPwmChannel, TIMER_, pin);
+	// deadtime with register manipulation, approx 14ns per increment 0 to 128
+	// (DTG Bits 7:0) -> DGT Bit 2|5 = 00100100 = 560ns
+	// bitSet(TIMER1_BASE->BDTR, 2);
+	// bitSet(TIMER1_BASE->BDTR, 5);
 
 	/* shockTimer->pause();
+	// complementary PWM with direct register manipulation
 	// TIM1->CCER |= 0x555; //3ch compl enable. 0x55 = 2ch compl enable. 0x5 = 1ch compl enable. As seen on RM0008 pages 353 & 354, CCxNE and CCxE bits
 	TIM1->CCER &= ~TIM_CCER_CC1NP; -- polarity low (or |= to high)
-	TIM1->CCER |= TIM_OCNPOLARITY_HIGH;
-	TIM1->CCER |= 0;
-	TIM1->CCER |= 2;
-	TIM1->CCER |= TIM_CCER_CC1NE;
+	TIM1->CCER |= TIM_OCNPOLARITY_HIGH | 2 | TIM_CCER_CC1NE;
 	TIM1->CR1 |= TIM_CR1_CMS_1; // center waveform
 	shockTimer->resume(); */
 
@@ -132,7 +127,7 @@ uint32_t getRegister(uint8_t reg) {
 		return deadTime;
 	}
 
-    return -1;
+	return -1;
 }
 
 void processSerial() {
@@ -153,11 +148,9 @@ void processSerial() {
 		// get register
 		uint8_t reg = Serial.read();
 		uint32_t val = getRegister(reg);
-		// Serial.write((uint8_t*) &val, sizeof(val));
 		Serial.write((uint8_t*) &val, sizeof(val));
-		// Serial.write((uint8_t*) &val, sizeof(val));
-		// uint32_t val = getRegister(reg);
 	} else {
+		// error, blink the LED
 		for (int i = 0; i < 5; i++) {
 			digitalWrite(LED_BUILTIN, HIGH);
 			delay(100);