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pins_arduino.h
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#ifndef Pins_Arduino_h
#define Pins_Arduino_h
#include <stdint.h>
#include "soc/soc_caps.h"
#define USB_VID 0x2341
#define USB_PID 0x0070
#define EXTERNAL_NUM_INTERRUPTS 46
#define NUM_DIGITAL_PINS 25
#define NUM_ANALOG_INPUTS 8
#define analogInputToDigitalPin(p) (p)
#define digitalPinToInterrupt(p) ((((uint8_t)digitalPinToGPIONumber(p)) < 48)? digitalPinToGPIONumber(p) : -1)
#define digitalPinHasPWM(p) (((uint8_t)digitalPinToGPIONumber(p)) < 46)
#ifndef __cplusplus
#define constexpr const
#endif
// primary pin names
static constexpr uint8_t D0 = 0; // also RX
static constexpr uint8_t D1 = 1; // also TX
static constexpr uint8_t D2 = 2;
static constexpr uint8_t D3 = 3; // also CTS
static constexpr uint8_t D4 = 4; // also DSR
static constexpr uint8_t D5 = 5;
static constexpr uint8_t D6 = 6;
static constexpr uint8_t D7 = 7;
static constexpr uint8_t D8 = 8;
static constexpr uint8_t D9 = 9;
static constexpr uint8_t D10 = 10; // also SS
static constexpr uint8_t D11 = 11; // also MOSI
static constexpr uint8_t D12 = 12; // also MISO
static constexpr uint8_t D13 = 13; // also SCK, LED_BUILTIN
static constexpr uint8_t LED_RED = 14;
static constexpr uint8_t LED_GREEN = 15;
static constexpr uint8_t LED_BLUE = 16; // also RTS
static constexpr uint8_t A0 = 17; // also DTR
static constexpr uint8_t A1 = 18;
static constexpr uint8_t A2 = 19;
static constexpr uint8_t A3 = 20;
static constexpr uint8_t A4 = 21; // also SDA
static constexpr uint8_t A5 = 22; // also SCL
static constexpr uint8_t A6 = 23;
static constexpr uint8_t A7 = 24;
// alternate pin functions
static constexpr uint8_t LED_BUILTIN = D13;
static constexpr uint8_t TX = D1;
static constexpr uint8_t RX = D0;
static constexpr uint8_t RTS = LED_BLUE;
static constexpr uint8_t CTS = D3;
static constexpr uint8_t DTR = A0;
static constexpr uint8_t DSR = D4;
static constexpr uint8_t SS = D10;
static constexpr uint8_t MOSI = D11;
static constexpr uint8_t MISO = D12;
static constexpr uint8_t SCK = D13;
static constexpr uint8_t SDA = A4;
static constexpr uint8_t SCL = A5;
#define PIN_I2S_SCK D7
#define PIN_I2S_FS D8
#define PIN_I2S_SD D9
#define PIN_I2S_SD_OUT D9 // same as bidir
#define PIN_I2S_SD_IN D10
#ifndef __cplusplus
#undef constexpr
#endif
#endif /* Pins_Arduino_h */