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110c8e9b7f
SmartAirSpeaker/SmartAirSpeaker.ino
Will 110c8e9b7f
Initial commit
2024-04-30 21:18:39 -07:00

340 lines
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#include <Wire.h>
#include <SparkFun_WM8960_Arduino_Library.h>
#include "bsec.h"
#include "EspMQTTClient.h"
#include <ArduinoJson.h>
#include "BluetoothA2DPSink.h"
#include <SparkFun_Qwiic_OLED.h> //http://librarymanager/All#SparkFun_Qwiic_OLED
EspMQTTClient client(
"YourSSID",
"YourWifiPassword",
"192.168.10.51", // MQTT Broker server ip
"YourMqttUsername", // Can be omitted if not needed
"YourMqttPassword", // Can be omitted if not needed
"espmqtt" // Client name that uniquely identify your device
);
#define I2S_SDO 27 //26 // DDAT
#define I2S_WS 14 //25 // DLRC
#define I2S_SCK 13 //33 // BCLK
//#define I2S_SD 17
#define USE_SPEAKER_OUTPUT
#undef USE_3_5MM_OUTPUT
#define LED_BUILTIN 0
WM8960 codec; // http://librarymanager/All#SparkFun_WM8960
BluetoothA2DPSink a2dp_sink; // https://github.com/pschatzmann/ESP32-A2DP
Bsec iaqSensor; // Bsec Bosch sensors
QwiicMicroOLED myOLED; // OLED
String output;
String header = "Timestamp [ms], IAQ, IAQ accuracy, Static IAQ, CO2 equivalent, breath VOC equivalent, raw temp[°C], pressure [hPa], raw relative humidity [%], gas [Ohm], Stab Status, run in status, comp temp[°C], comp humidity [%], gas percentage";
unsigned long last_header = 0;
unsigned long last_report = 0;
int width, height;
uint8_t * playtime;
String artist, title;
// Helper functions declarations
void checkIaqSensorStatus(void);
void errLeds(void);
void setup()
{
Serial.begin(115200);
Serial.println("Smart Air Speaker");
Wire.begin(15,5);
delay(500);
if (codec.begin() == false) //Begin communication over I2C
{
Serial.println("Sound codec did not respond. Please check wiring.");
}
Serial.println("Sound codec is connected properly.");
codec_setup();
// Set up I2S
i2s_install();
i2s_setpin();
a2dp_sink.set_avrc_metadata_attribute_mask(ESP_AVRC_MD_ATTR_TITLE | ESP_AVRC_MD_ATTR_ARTIST | ESP_AVRC_MD_ATTR_PLAYING_TIME );
a2dp_sink.set_avrc_metadata_callback(avrc_metadata_callback);
a2dp_sink.start("WillTooth Audio"); // Note, you can give your device any name!
// OLED setup
if (myOLED.begin() == false)
{
Serial.println("OLED setup failed.");
}
width = myOLED.getWidth();
height = myOLED.getHeight();
pinMode(LED_BUILTIN, OUTPUT);
digitalWrite(LED_BUILTIN, LOW);
iaqSensor.begin(BME68X_I2C_ADDR_LOW, Wire);
output = "\nBSEC library version " + String(iaqSensor.version.major) + "." + String(iaqSensor.version.minor) + "." + String(iaqSensor.version.major_bugfix) + "." + String(iaqSensor.version.minor_bugfix);
Serial.println(output);
checkIaqSensorStatus();
bsec_virtual_sensor_t sensorList[13] = {
BSEC_OUTPUT_IAQ,
BSEC_OUTPUT_STATIC_IAQ,
BSEC_OUTPUT_CO2_EQUIVALENT,
BSEC_OUTPUT_BREATH_VOC_EQUIVALENT,
BSEC_OUTPUT_RAW_TEMPERATURE,
BSEC_OUTPUT_RAW_PRESSURE,
BSEC_OUTPUT_RAW_HUMIDITY,
BSEC_OUTPUT_RAW_GAS,
BSEC_OUTPUT_STABILIZATION_STATUS,
BSEC_OUTPUT_RUN_IN_STATUS,
BSEC_OUTPUT_SENSOR_HEAT_COMPENSATED_TEMPERATURE,
BSEC_OUTPUT_SENSOR_HEAT_COMPENSATED_HUMIDITY,
BSEC_OUTPUT_GAS_PERCENTAGE
};
iaqSensor.updateSubscription(sensorList, 13, BSEC_SAMPLE_RATE_LP);
checkIaqSensorStatus();
}
void avrc_metadata_callback(uint8_t data1, const uint8_t *data2) {
Serial.printf("AVRC metadata rsp: attribute id 0x%x, %s\n", data1, data2);
if (data1 == 0x1)
title = String((char*)data2);
else if (data1 == 0x2)
artist = String((char*)data2);
// else if (data1 == 0x40)
// playtime = data2;
}
void onConnectionEstablished() {
client.publish("esp/status", "{\"status\": \"connected\"}");
}
void loop(void)
{
unsigned long time_trigger = millis();
if (iaqSensor.run()) { // Do IAQ work and proceed unless there's an issue
if (last_report == 0 || time_trigger-last_report > 60000) {
if (last_header == 0 || time_trigger-last_header > 600000) {
Serial.println(header);
last_header = time_trigger;
}
digitalWrite(LED_BUILTIN, LOW);
output = String(time_trigger);
output += ", " + String(iaqSensor.iaq);
output += ", " + String(iaqSensor.iaqAccuracy);
output += ", " + String(iaqSensor.staticIaq);
output += ", " + String(iaqSensor.co2Equivalent);
output += ", " + String(iaqSensor.breathVocEquivalent);
output += ", " + String(iaqSensor.rawTemperature);
output += ", " + String(iaqSensor.pressure);
output += ", " + String(iaqSensor.rawHumidity);
output += ", " + String(iaqSensor.gasResistance);
output += ", " + String(iaqSensor.stabStatus);
output += ", " + String(iaqSensor.runInStatus);
output += ", " + String(iaqSensor.temperature);
output += ", " + String(iaqSensor.humidity);
output += ", " + String(iaqSensor.gasPercentage);
Serial.println(output);
if (iaqSensor.iaqAccuracy > 0){
client.publish("esp/iaq", String(iaqSensor.iaq));
} else {
Serial.println("Not publishing IAQ: low accuracy");
}
if (iaqSensor.co2Accuracy > 0){
client.publish("esp/co2e", String(iaqSensor.co2Equivalent));
} else {
Serial.println("Not publishing CO2e: low accuracy");
}
if (iaqSensor.breathVocAccuracy > 0) {
client.publish("esp/bvoce", String(iaqSensor.breathVocEquivalent));
} else {
Serial.println("Not publishing bVOCe: low accuracy");
}
client.publish("esp/tempc", String(iaqSensor.temperature));
client.publish("esp/pressure", String(iaqSensor.pressure));
client.publish("esp/humidity", String(iaqSensor.humidity));
JsonDocument obj;
obj["uptime"] = time_trigger;
obj["stabStatus"] = iaqSensor.stabStatus;
obj["runInStatus"] = iaqSensor.runInStatus;
obj["iaqAccuracy"] = iaqSensor.iaqAccuracy;
obj["co2Accuracy"] = iaqSensor.co2Accuracy;
obj["breathVocAccuracy"] = iaqSensor.breathVocAccuracy;
String json;
serializeJson(obj,json);
client.publish("esp/status", json);
digitalWrite(LED_BUILTIN, HIGH);
last_report = time_trigger;
drawGraph(iaqSensor.temperature, iaqSensor.humidity, iaqSensor.co2Equivalent, iaqSensor.co2Accuracy);
}
} else {
checkIaqSensorStatus();
}
client.loop();
sleep(1);
}
void drawGraph(int temp, int humid, int co2e, int co2acc)
{
myOLED.erase();
String out = "Temp: "+String(temp)+"'\n"+
"Hum: "+String(humid)+"%\n";
if(co2acc>0)
out += "CO2: "+String(co2e);
else
out += "CO2: --";
if(!title.isEmpty() && !artist.isEmpty())
out += "\n"+title+" - "+artist;
myOLED.setCursor(0, 0);
myOLED.print(out);
//myOLED.line(xS, yS, xE, yE);
myOLED.display();
delay(10);
}
// Helper function definitions
void checkIaqSensorStatus(void)
{
if (iaqSensor.bsecStatus != BSEC_OK) {
if (iaqSensor.bsecStatus < BSEC_OK) {
output = "BSEC error code : " + String(iaqSensor.bsecStatus);
Serial.println(output);
for (;;)
errLeds(); /* Halt in case of failure */
} else {
output = "BSEC warning code : " + String(iaqSensor.bsecStatus);
Serial.println(output);
}
}
if (iaqSensor.bme68xStatus != BME68X_OK) {
if (iaqSensor.bme68xStatus < BME68X_OK) {
output = "BME68X error code : " + String(iaqSensor.bme68xStatus);
Serial.println(output);
for (;;)
errLeds(); /* Halt in case of failure */
} else {
output = "BME68X warning code : " + String(iaqSensor.bme68xStatus);
Serial.println(output);
}
}
}
void errLeds(void)
{
pinMode(LED_BUILTIN, OUTPUT);
digitalWrite(LED_BUILTIN, HIGH);
delay(100);
digitalWrite(LED_BUILTIN, LOW);
delay(100);
}
void codec_setup()
{
// General setup needed
codec.enableVREF();
codec.enableVMID();
// Connect from DAC outputs to output mixer
codec.enableLD2LO();
codec.enableRD2RO();
// Set gainstage between booster mixer and output mixer
#ifdef USE_3_5MM_OUTPUT
// For this loopback example, we are going to keep these as low as they go
codec.setLB2LOVOL(WM8960_OUTPUT_MIXER_GAIN_NEG_21DB);
codec.setRB2ROVOL(WM8960_OUTPUT_MIXER_GAIN_NEG_21DB);
#endif
#ifdef USE_SPEAKER_OUTPUT
codec.setLB2LOVOL(WM8960_OUTPUT_MIXER_GAIN_0DB);
codec.setRB2ROVOL(WM8960_OUTPUT_MIXER_GAIN_0DB);
#endif
// Enable output mixers
codec.enableLOMIX();
codec.enableROMIX();
// CLOCK STUFF, These settings will get you 44.1KHz sample rate, and class-d
// freq at 705.6kHz
codec.enablePLL(); // Needed for class-d amp clock
codec.setPLLPRESCALE(WM8960_PLLPRESCALE_DIV_2);
codec.setSMD(WM8960_PLL_MODE_FRACTIONAL);
codec.setCLKSEL(WM8960_CLKSEL_PLL);
codec.setSYSCLKDIV(WM8960_SYSCLK_DIV_BY_2);
codec.setBCLKDIV(4);
codec.setDCLKDIV(WM8960_DCLKDIV_16);
codec.setPLLN(7);
codec.setPLLK(0x86, 0xC2, 0x26); // PLLK=86C226h
//codec.setADCDIV(0); // Default is 000 (what we need for 44.1KHz)
//codec.setDACDIV(0); // Default is 000 (what we need for 44.1KHz)
codec.setWL(WM8960_WL_16BIT);
codec.enablePeripheralMode();
//codec.enableMasterMode();
//codec.setALRCGPIO(); // Note, should not be changed while ADC is enabled.
// Enable DACs
codec.enableDacLeft();
codec.enableDacRight();
//codec.enableLoopBack(); // Loopback sends ADC data directly into DAC
codec.disableLoopBack();
// Default is "soft mute" on, so we must disable mute to make channels active
codec.disableDacMute();
#ifdef USE_3_5MM_OUTPUT
codec.enableHeadphones();
codec.enableOUT3MIX(); // Provides VMID as buffer for headphone ground
codec.setHeadphoneVolumeDB(0.00);
Serial.println("Headphone volume set to +0dB");
#endif
#ifdef USE_SPEAKER_OUTPUT
codec.enableSpeakers();
codec.setSpeakerVolumeDB(0.00);
Serial.println("Speaker volume set to +0dB");
#endif
Serial.println("Codec Setup complete. Connect via Bluetooth, play music, and listen on Headphone outputs.");
}
void i2s_install() {
// Set up I2S Processor configuration
static i2s_config_t i2s_config = {
.mode = (i2s_mode_t) (I2S_MODE_MASTER | I2S_MODE_TX),
.sample_rate = 44100, // Updated automatically by A2DP
.bits_per_sample = (i2s_bits_per_sample_t)16,
.channel_format = I2S_CHANNEL_FMT_RIGHT_LEFT,
.communication_format = (i2s_comm_format_t) (I2S_COMM_FORMAT_STAND_I2S),
.intr_alloc_flags = 0, // Default interrupt priority
.dma_buf_count = 8,
.dma_buf_len = 64,
.use_apll = true,
.tx_desc_auto_clear = true // Avoiding noise in case of data unavailability
};
a2dp_sink.set_i2s_config(i2s_config);
}
void i2s_setpin() {
// Set I2S pin configuration
i2s_pin_config_t my_pin_config = {
.bck_io_num = I2S_SCK,
.ws_io_num = I2S_WS,
.data_out_num = I2S_SDO,
.data_in_num = I2S_PIN_NO_CHANGE
};
a2dp_sink.set_pin_config(my_pin_config);
}
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