CelliesProjects

#include "driver/ledc.h"

static void enable_out_clock(uint8_t pin,double freq) {
    periph_module_enable(PERIPH_LEDC_MODULE);
    ledc_timer_bit_t bit_num = (ledc_timer_bit_t) 1;      // 3 normally
    int duty = pow(2, (int) bit_num) / 2;

    ledc_timer_config_t timer_conf;
    timer_conf.bit_num = bit_num;
    timer_conf.freq_hz = freq;

CelliesProjects

#include <Wire.h>

#define M5GO_WHEEL_ADDR     0x56
#define MOTOR_CTRL_ADDR     0x00
#define ENCODER_ADDR        0x04
#define DEAD_ZONE           5

void setMotor(int16_t pwm0, int16_t pwm1) {
  Wire.beginTransmission(M5GO_WHEEL_ADDR);
  Wire.write(MOTOR_CTRL_ADDR); // Motor ctrl reg addr

CelliesProjects

#include <Wire.h>

void setup() {
  // put your setup code here, to run once:
  Wire.begin( 21, 22, 400000 );
  Wire.beginTransmission( 0X1A );
  uint8_t error = Wire.endTransmission();
  if ( error ) ESP_LOGI( TAG, "No codec found." );
}

CelliesProjects

#include <Arduino.h>

#ifdef ESP32
    #include <WiFi.h>
#else
    #include <ESP8266WiFi.h>
#endif
#include "AudioFileSourceICYStream.h"
#include "AudioFileSourceBuffer.h"
#include "AudioGeneratorMP3a.h"

CelliesProjects

//AudioOutPutI2S.cpp is aangepast
//Works on a M5Stack Fire with PSRAM enabled - compiled for esp32 dev kit - 16MB flash - 4MB PSRAM
#include <WiFi.h>
//#include <TFT_eSPI.h>
#include "AudioFileSourceICYStream.h"
#include "AudioFileSourceBuffer.h"
#include "AudioGeneratorMP3a.h"
#include "AudioOutputI2S.h"

#define BUTTON_A                39

CelliesProjects

#pragma mark - Depend ESP8266Audio and ESP8266_Spiram libraries
/* 
cd ~/Arduino/libraries
git clone https://github.com/earlephilhower/ESP8266Audio
git clone https://github.com/Gianbacchio/ESP8266_Spiram

Use the "Tools->ESP32 Sketch Data Upload" menu to write the MP3 to SPIFFS
Then upload the sketch normally.  
https://github.com/me-no-dev/arduino-esp32fs-plugin
*/

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/**
 * MPU9250 Basic Example Code for Dual MPU9250
 * Copyright (c) 2014 Kris Winer
 * Copyright (c) 2018 botamochi6277
 * license: Beerware - Use this code however you'd like. If you
 * find it useful you can buy me a beer some time.
 */

#include <M5Stack.h>
#include "utility/MPU9250.h"

CelliesProjects

// Attach this header file to your sketch to use the GFX Free Fonts. You can write
// sketches without it, but it makes referencing them easier.

// This calls up ALL the fonts but they only get loaded if you actually
// use them in your sketch.
//
// No changes are needed to this header file unless new fonts are added to the
// library "Fonts/GFXFF" folder.
//
// To save a lot of typing long names, each font can easily be referenced in the

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// https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/peripherals/adc.html

/* this example has to be compiled with PSRAM enabled. */
#include <M5Stack.h>
#include <driver/adc.h>

#define MICROPHONE             34
#define SPEAKER                25
#define BACKLIGHT              32
#define BUFFER_SIZE            1000*1000

CelliesProjects

#include "arduinoFFT.h"
//#include <M5Stack.h>
//#include <esp_wifi.h>
#include <TFT_eSPI.h>
//#include <M5Display.h>                 // This library is a lot faster! But also a lot larger.

#define microphone    34
#define speaker       25
#define backlight     32