diff --git a/.DS_Store b/.DS_Store
index 86381ba..4cf94ea 100644
Binary files a/.DS_Store and b/.DS_Store differ
diff --git a/.gitignore b/.gitignore
index 169af9e..06d5ef4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,3 @@
 .development
+.DS_Store
+src/.DS_Store
diff --git a/src/.DS_Store b/src/.DS_Store
index ba87411..cd8393a 100644
Binary files a/src/.DS_Store and b/src/.DS_Store differ
diff --git a/src/extras/PwmPin.h b/src/extras/PwmPin.h
index 963aee7..2057e07 100644
--- a/src/extras/PwmPin.h
+++ b/src/extras/PwmPin.h
@@ -16,9 +16,6 @@
 
 #include <Arduino.h>
 #include <driver/ledc.h>
-#include <vector>
-
-using std::vector;
 
 #define DEFAULT_PWM_FREQ     5000
 
diff --git a/src/extras/extras.ino b/src/extras/extras.ino
index 3b9cb04..c433195 100644
--- a/src/extras/extras.ino
+++ b/src/extras/extras.ino
@@ -3,8 +3,6 @@
 // as well as compile and test from this point.  This file is ignored when the library is included in other sketches.
 
 #include "PwmPin.h"
-#include <soc/ledc_reg.h> 
-#include "esp_rom_gpio.h"
 
 void setup(){
  
@@ -17,76 +15,13 @@ void setup(){
 
   LedPin *led[20];
 
-//  int p[]={33,27,4,32,18,19,16,17,5};
-    int p[]={11,7,3,1,38,33,9};
+//  uint8_t p[]={33,27,4,32,18,19,16,17,5};       // ESP32 test
+    uint8_t p[]={11,7,3,1,38,33,9,10};          // ESP32-S2 test
 
-  for(int i=0;i<sizeof(p)/4;i++)
-    led[i]=new LedPin(p[i],20,5000+i);    
+  for(int i=0;i<sizeof(p);i++)
+    led[i]=new LedPin(p[i],20,5000);    
 
-  new LedPin(10,200,65535);
-  new LedPin(5,200,65535);
-  
-//Serial.printf("HSTIMER0: %d %d %d %d\n",
-//  REG_GET_FIELD(LEDC_HSTIMER0_CONF_REG,LEDC_TICK_SEL_HSTIMER0),
-//  REG_GET_FIELD(LEDC_HSTIMER0_CONF_REG,LEDC_DIV_NUM_HSTIMER0)>>8,
-//  REG_GET_FIELD(LEDC_HSTIMER0_CONF_REG,LEDC_DIV_NUM_HSTIMER0)&0xFF,
-//  REG_GET_FIELD(LEDC_HSTIMER0_CONF_REG,LEDC_HSTIMER0_DUTY_RES)
-//  );
-//
-//Serial.printf("HSCHAN0: %d %d %d %d %d\n",
-//  REG_READ(LEDC_HSCH0_CONF0_REG),
-//  REG_READ(LEDC_HSCH0_HPOINT_REG),
-//  REG_READ(LEDC_HSCH0_DUTY_REG)>>4,
-//  REG_READ(LEDC_HSCH0_DUTY_REG)&0xF,
-//  REG_GET_FIELD(LEDC_HSCH0_CONF1_REG,LEDC_DUTY_INC_HSCH0)
-//  );
-//
-//Serial.printf("LSTIMER0: %d %d %d %d\n",
-//  REG_GET_FIELD(LEDC_LSTIMER0_CONF_REG,LEDC_TICK_SEL_LSTIMER0),
-//  REG_GET_FIELD(LEDC_LSTIMER0_CONF_REG,LEDC_DIV_NUM_LSTIMER0)>>8, 
-//  REG_GET_FIELD(LEDC_LSTIMER0_CONF_REG,LEDC_DIV_NUM_LSTIMER0)&0xFF,
-//  REG_GET_FIELD(LEDC_LSTIMER0_CONF_REG,LEDC_LSTIMER0_DUTY_RES)
-//  );
-//
-//delay(100);
-//  
-//Serial.printf("LSCHAN0: %d %d %d %d %d\n",
-//  REG_READ(LEDC_LSCH0_CONF0_REG),
-//  REG_READ(LEDC_LSCH0_HPOINT_REG),
-//  REG_READ(LEDC_LSCH0_DUTY_REG)>>4,
-//  REG_READ(LEDC_LSCH0_DUTY_REG)&0xF,
-//  REG_GET_FIELD(LEDC_LSCH0_CONF1_REG,LEDC_DUTY_INC_LSCH0)
-//  );
-//
-//Serial.printf("LOW CLOCK: %d\n",REG_READ(LEDC_CONF_REG));  
-//
-//Serial.printf("GPIO 32: %d %d %d %d\n",
-//  REG_GET_FIELD(GPIO_FUNC32_OUT_SEL_CFG_REG,GPIO_FUNC32_OEN_INV_SEL),
-//  REG_GET_FIELD(GPIO_FUNC32_OUT_SEL_CFG_REG,GPIO_FUNC32_OEN_SEL),
-//  REG_GET_FIELD(GPIO_FUNC32_OUT_SEL_CFG_REG,GPIO_FUNC32_OUT_INV_SEL),
-//  REG_GET_FIELD(GPIO_FUNC32_OUT_SEL_CFG_REG,GPIO_FUNC32_OUT_SEL)
-//  );
-//  
-//Serial.printf("GPIO 5: %d %d %d %d\n",
-//  REG_GET_FIELD(GPIO_FUNC5_OUT_SEL_CFG_REG,GPIO_FUNC5_OEN_INV_SEL),
-//  REG_GET_FIELD(GPIO_FUNC5_OUT_SEL_CFG_REG,GPIO_FUNC5_OEN_SEL),
-//  REG_GET_FIELD(GPIO_FUNC5_OUT_SEL_CFG_REG,GPIO_FUNC5_OUT_INV_SEL),
-//  REG_GET_FIELD(GPIO_FUNC5_OUT_SEL_CFG_REG,GPIO_FUNC5_OUT_SEL)
-//  );
-//
-//Serial.printf("GPIO 4: %d %d %d %d\n",
-//  REG_GET_FIELD(GPIO_FUNC4_OUT_SEL_CFG_REG,GPIO_FUNC4_OEN_INV_SEL),
-//  REG_GET_FIELD(GPIO_FUNC4_OUT_SEL_CFG_REG,GPIO_FUNC4_OEN_SEL),
-//  REG_GET_FIELD(GPIO_FUNC4_OUT_SEL_CFG_REG,GPIO_FUNC4_OUT_INV_SEL),
-//  REG_GET_FIELD(GPIO_FUNC4_OUT_SEL_CFG_REG,GPIO_FUNC4_OUT_SEL)
-//  );  
-//
-//Serial.printf("GPIO 33: %d %d %d %d\n",
-//  REG_GET_FIELD(GPIO_FUNC33_OUT_SEL_CFG_REG,GPIO_FUNC33_OEN_INV_SEL),
-//  REG_GET_FIELD(GPIO_FUNC33_OUT_SEL_CFG_REG,GPIO_FUNC33_OEN_SEL),
-//  REG_GET_FIELD(GPIO_FUNC33_OUT_SEL_CFG_REG,GPIO_FUNC33_OUT_INV_SEL),
-//  REG_GET_FIELD(GPIO_FUNC33_OUT_SEL_CFG_REG,GPIO_FUNC33_OUT_SEL)
-//  );  
+  led[7]->set(100);
 
   while(1);
 }