//go:build m5stick_c

// This file contains the pin mapping for the M5STACK M5Stick-C device.
// doc: https://docs.m5stack.com/en/core/m5stickc

package machine

const (
	// HAT     | HY2.0-4P
	//         |
	// GND     | GND
	// 5V OUT  | VOUT
	// G26     | G32   SDA
	// G36     | G33   SCL
	// G0      |
	// BAT     |
	// 3V3     |
	// 5V IN   |

	IO0  = GPIO0 // CLK
	IO1  = GPIO1 // U0TXD
	IO2  = GPIO2
	IO3  = GPIO3 // U0RXD
	IO4  = GPIO4
	IO5  = GPIO5 // TFT_CS LCD_SS SPI0_SS
	IO6  = GPIO6
	IO7  = GPIO7
	IO8  = GPIO8
	IO9  = GPIO9  // IR
	IO10 = GPIO10 // LED
	IO11 = GPIO11
	IO12 = GPIO12
	IO13 = GPIO13 // TFT_CLK  LCD_SCK  SPI0_SCK
	IO14 = GPIO14
	IO15 = GPIO15 // TFT_MOSI LCD_MOSI SPI0_MOSI
	IO16 = GPIO16
	IO17 = GPIO17
	IO18 = GPIO18 // TFT_RST LCD_RST
	IO19 = GPIO19
	IO21 = GPIO21 // SDA0
	IO22 = GPIO22 // SCL0
	IO23 = GPIO23 // TFT_DC LCD_DC
	IO25 = GPIO25 // -   DAC1
	IO26 = GPIO26 // HAT DAC2
	IO27 = GPIO27
	IO32 = GPIO32 // SDA1 / PIN 32 / RXD2
	IO33 = GPIO33 // SCL1 / PIN 33 / TXD2
	IO34 = GPIO34 // MIC_DATA
	IO35 = GPIO35 // IRQ0   ADC1
	IO36 = GPIO36 // HAT    ADC2  LCD_MISO SPI0_MISO
	IO37 = GPIO37 // BUTTON_A, BUTTON_HOME, BUTTON
	IO38 = GPIO38
	IO39 = GPIO39 // BUTTON_B, BUTTON_RST
)

const (
	// Buttons
	BUTTON_A    = IO37
	BUTTON_B    = IO39
	BUTTON_HOME = BUTTON_A
	BUTTON_RST  = BUTTON_B
	BUTTON      = BUTTON_A

	// LED
	IR  = IO9
	LED = IO10
)

// SPI pins
const (
	SPI0_SCK_PIN = IO13
	SPI0_SDO_PIN = IO15
	SPI0_CS0_PIN = IO5

	// LCD ()
	LCD_SCK_PIN = SPI0_SCK_PIN
	LCD_SDO_PIN = SPI0_SDO_PIN
	LCD_SS_PIN  = SPI0_CS0_PIN
	LCD_DC_PIN  = IO23
	LCD_RST_PIN = IO18
)

// I2C pins
const (
	// Internal I2C (AXP192 / BM8563 / MPU6886)
	SDA0_PIN = IO21
	SCL0_PIN = IO22

	// External I2C (GROOVE PORT)
	SDA1_PIN = IO32
	SCL1_PIN = IO33

	SDA_PIN = SDA1_PIN
	SCL_PIN = SCL1_PIN
)

// ADC pins
const (
	ADC1 Pin = IO35
	ADC2 Pin = IO36
)

// DAC pins
const (
	DAC1 Pin = IO25
	DAC2 Pin = IO26
)

// UART pins
const (
	// UART0 (CP2104)
	UART0_TX_PIN = IO1
	UART0_RX_PIN = IO3

	UART_TX_PIN = UART0_TX_PIN
	UART_RX_PIN = UART0_RX_PIN
)