machine: refactor pins to be of Pin type

src/machine/board_microbit.go

@@ -7,70 +7,70 @@ const HasLowFrequencyCrystal = false
 
 // Buttons on the micro:bit (A and B)
 const (
-	BUTTON  = BUTTONA
-	BUTTONA = 17
-	BUTTONB = 26
+	BUTTON  Pin = BUTTONA
+	BUTTONA Pin = 17
+	BUTTONB Pin = 26
 )
 
 // UART pins
 const (
-	UART_TX_PIN = 24
-	UART_RX_PIN = 25
+	UART_TX_PIN Pin = 24
+	UART_RX_PIN Pin = 25
 )
 
 // ADC pins
 const (
-	ADC0 = 3 // P0 on the board
-	ADC1 = 2 // P1 on the board
-	ADC2 = 1 // P2 on the board
+	ADC0 Pin = 3 // P0 on the board
+	ADC1 Pin = 2 // P1 on the board
+	ADC2 Pin = 1 // P2 on the board
 )
 
 // I2C pins
 const (
-	SDA_PIN = 30 // P20 on the board
-	SCL_PIN = 0  // P19 on the board
+	SDA_PIN Pin = 30 // P20 on the board
+	SCL_PIN Pin = 0  // P19 on the board
 )
 
 // SPI pins
 const (
-	SPI0_SCK_PIN  = 23 // P13 on the board
-	SPI0_MOSI_PIN = 21 // P15 on the board
-	SPI0_MISO_PIN = 22 // P14 on the board
+	SPI0_SCK_PIN  Pin = 23 // P13 on the board
+	SPI0_MOSI_PIN Pin = 21 // P15 on the board
+	SPI0_MISO_PIN Pin = 22 // P14 on the board
 )
 
 // GPIO/Analog pins
 const (
-	P0  = 3
-	P1  = 2
-	P2  = 1
-	P3  = 4
-	P4  = 5
-	P5  = 17
-	P6  = 12
-	P7  = 11
-	P8  = 18
-	P9  = 10
-	P10 = 6
-	P11 = 26
-	P12 = 20
-	P13 = 23
-	P14 = 22
-	P15 = 21
-	P16 = 16
+	P0  Pin = 3
+	P1  Pin = 2
+	P2  Pin = 1
+	P3  Pin = 4
+	P4  Pin = 5
+	P5  Pin = 17
+	P6  Pin = 12
+	P7  Pin = 11
+	P8  Pin = 18
+	P9  Pin = 10
+	P10 Pin = 6
+	P11 Pin = 26
+	P12 Pin = 20
+	P13 Pin = 23
+	P14 Pin = 22
+	P15 Pin = 21
+	P16 Pin = 16
 )
 
 // LED matrix pins
 const (
-	LED_COL_1 = 4
-	LED_COL_2 = 5
-	LED_COL_3 = 6
-	LED_COL_4 = 7
-	LED_COL_5 = 8
-	LED_COL_6 = 9
-	LED_COL_7 = 10
-	LED_COL_8 = 11
-	LED_COL_9 = 12
-	LED_ROW_1 = 13
-	LED_ROW_2 = 14
-	LED_ROW_3 = 15
+	LED_COL_1 Pin = 4
+	LED_COL_2 Pin = 5
+	LED_COL_3 Pin = 6
+	LED_COL_4 Pin = 7
+	LED_COL_5 Pin = 8
+	LED_COL_6 Pin = 9
+	LED_COL_7 Pin = 10
+	LED_COL_8 Pin = 11
+	LED_COL_9 Pin = 12
+	LED_ROW_1 Pin = 13
+	LED_ROW_2 Pin = 14
+	LED_ROW_3 Pin = 15
 )