fixed Rev 3 pin definition issue

Author: alfran

variants/otto/otto.cpp

@@ -165,8 +165,8 @@ extern const stm32_pin_info PIN_MAP[GPIO_PINS] = {
     {GPIOG,  9, NULL,    0, AFx,   NULL, ADCx}, // PG9:  D15            -       -                                 -               - USART6_RX (Serial3)   -
     {GPIOD,  5, NULL,    0, AFx,   NULL, ADCx}, // PD5:  D16            -       -                                 -               - USART2_TX (Serial2)   -
     {GPIOD,  6, NULL,    0, AFx,   NULL, ADCx}, // PD6:  D17            -       -                                 -               - USART2_RX (Serial2)   -
-    {GPIOB, 10, TIMER2,  3,   1,   NULL, ADCx}, // PB10: D18            -       - TIM2_CH3                        -               - USART3_TX (Serial3)   -
-    {GPIOB, 11, TIMER2,  4,   1,   NULL, ADCx}, // PB11: D19            -       - TIM2_CH4                        -               - USART3_RX (Serial3)   -
+    {GPIOB, 10, TIMER2,  3,   1,   NULL, ADCx}, // PB10: D18            -       - TIM2_CH3                        -               - USART3_TX (Serial1)   -
+    {GPIOB, 11, TIMER2,  4,   1,   NULL, ADCx}, // PB11: D19            -       - TIM2_CH4                        -               - USART3_RX (Serial1)   -
     {GPIOH,  5, NULL,    0, AFx,   NULL, ADCx}, // PH5:  D20            -       -                                 -               - I2C2_SDA              -
     {GPIOH,  4, NULL,    0, AFx,   NULL, ADCx}, // PH4:  D21            -       -                                 -               - I2C2_SCL              -
 // D22...D53

variants/otto/otto.h

@@ -173,22 +173,24 @@
 #define TX1_PIN 	D18
 #define RX2_PIN 	D17
 #define TX2_PIN 	D16
-#define RX3_PIN 	D14
-#define TX3_PIN 	D15
+#define RX3_PIN 	D15
+#define TX3_PIN 	D14
 
 // WIFI POWER PIN
 #define WIFI_PWR	D75
 
 // USB POWER PIN
 #define USB_PWR		D76
 
+// LCD CONTROL
+#define LCD_BL   	D77
+
 // MIC SEL
-#define MIC_SEL  	D77
+#define MIC_SEL  	D78
 #define CODEC     0
 #define MCU       1
 
-// LCD CONTROL
-#define LCD_BL   	D78
+
 
 
 enum {