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72 lines
3.9 KiB
72 lines
3.9 KiB
#include "Arduino.h"
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//######################### INFOS ####################################
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/* This is a develboard-specific config-file for *AI Tinker ESP32-A1S-AudioKit*. It's highly customized and almost certainly
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not suitable for a different develboards.
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Has a lot of stuff already onboard but needs some soldering rework as there are not all GPIOs exposed
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PCB: Not necessary.
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Infos: https://github.com/Ai-Thinker-Open/ESP32-A1S-AudioKit
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Status: untested
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*/
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//################## GPIO-configuration ##############################
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// uSD-card-reader (via SPI)
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#define SPISD_CS 13 // GPIO for chip select (SD)
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#ifndef SINGLE_SPI_ENABLE
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#define SPISD_MOSI 15 // GPIO for master out slave in (SD) => not necessary for single-SPI
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#define SPISD_MISO 2 // GPIO for master in slave ou (SD) => not necessary for single-SPI
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#define SPISD_SCK 14 // GPIO for clock-signal (SD) => not necessary for single-SPI
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#endif
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#define MFRC522_RST_PIN 12 // needed for i2c-comm MTDI on JTAG
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#define MFRC522_ADDR 0x28 // default Address of MFRC522
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#define ext_IIC_CLK 23 // 14-pin-header
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#define ext_IIC_DATA 18 // 14-pin-header
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// I2S (DAC)
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#define I2S_DOUT 25 // Digital out (I2S)
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#define I2S_BCLK 27 // BCLK (I2S)
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#define I2S_LRC 26 // LRC (I2S)
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// I2C (AC101)
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#define IIC_CLK 32 // internal
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#define IIC_DATA 33 // internal
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// Amp enable
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#define GPIO_PA_EN GPIO_NUM_21 // internal
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#define GPIO_SEL_PA_EN GPIO_SEL_21
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// Rotary encoder
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#define DREHENCODER_CLK 5 // If you want to reverse encoder's direction, just switch GPIOs of CLK with DT (in software or hardware)
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#define DREHENCODER_DT 18 // Info: Lolin D32 / Lolin D32 pro 35 are using 35 for battery-voltage-monitoring!
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#define DREHENCODER_BUTTON 4 // Button is used to switch ESPuino on and off
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// Control-buttons
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#define PAUSEPLAY_BUTTON 36 // GPIO to detect pause/play
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#define NEXT_BUTTON 199 // GPIO to detect next
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#define PREVIOUS_BUTTON 198 // GPIO to detect previous (Important: as of 19.11.2020 changed from 33 to 2)
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// Power-control
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#define POWER 19 // GPIO used to drive transistor-circuit, that switches off peripheral devices while ESP32-deepsleep
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// (optional) Neopixel
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#define LED_PIN 23 // GPIO for Neopixel-signaling
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// (optinal) Headphone-detection
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#ifdef HEADPHONE_ADJUST_ENABLE
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#define HP_DETECT 39 // GPIO that detects, if there's a plug in the headphone jack or not
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#endif
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// (optional) Monitoring of battery-voltage via ADC
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#ifdef MEASURE_BATTERY_VOLTAGE
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#define VOLTAGE_READ_PIN 33 // GPIO used to monitor battery-voltage. Change to 35 if you're using Lolin D32 or Lolin D32 pro as it's hard-wired there!
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float referenceVoltage = 3.30; // Voltage between 3.3V and GND-pin at the develboard in battery-mode (disconnect USB!)
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float offsetVoltage = 0.1; // If voltage measured by ESP isn't 100% accurate, you can add an correction-value here
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#endif
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// (optional) For measuring battery-voltage a voltage-divider is necessary. Their values need to be configured here.
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#ifdef MEASURE_BATTERY_VOLTAGE
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uint8_t rdiv1 = 129; // Rdiv1 of voltage-divider (kOhms) (measure exact value with multimeter!)
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uint16_t rdiv2 = 389; // Rdiv2 of voltage-divider (kOhms) (measure exact value with multimeter!) => used to measure voltage via ADC!
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#endif
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