diff --git a/ESP32_MICROPHONE/Broadcasting_Your_Voice/ESP32-S3_INMP441_WebSocket_Client/ESP32-S3_INMP441_WebSocket_Client.ino b/ESP32_MICROPHONE/Broadcasting_Your_Voice/ESP32-S3_INMP441_WebSocket_Client/ESP32-S3_INMP441_WebSocket_Client.ino new file mode 100644 index 0000000..3dad44d --- /dev/null +++ b/ESP32_MICROPHONE/Broadcasting_Your_Voice/ESP32-S3_INMP441_WebSocket_Client/ESP32-S3_INMP441_WebSocket_Client.ino @@ -0,0 +1,133 @@ +///////////////////////////////////////////////////////////////// +/* + Broadcasting Your Voice with ESP32-S3 & INMP441 + For More Information: https://youtu.be/qq2FRv0lCPw + Created by Eric N. (ThatProject) +*/ +///////////////////////////////////////////////////////////////// + +/* +- Device +ESP32-S3 DevKit-C +https://docs.espressif.com/projects/esp-idf/en/latest/esp32s3/hw-reference/esp32s3/user-guide-devkitc-1.html + +- Required Library +Arduino ESP32: 2.0.9 + +Arduino Websockets: 0.5.3 +https://github.com/gilmaimon/ArduinoWebsockets +*/ + +#include +#include +#include + +#define I2S_SD 10 +#define I2S_WS 11 +#define I2S_SCK 12 +#define I2S_PORT I2S_NUM_0 + +#define bufferCnt 10 +#define bufferLen 1024 +int16_t sBuffer[bufferLen]; + +const char* ssid = ""; +const char* password = ""; + +const char* websocket_server_host = ""; +const uint16_t websocket_server_port = 8888; // + +using namespace websockets; +WebsocketsClient client; +bool isWebSocketConnected; + +void onEventsCallback(WebsocketsEvent event, String data) { + if (event == WebsocketsEvent::ConnectionOpened) { + Serial.println("Connnection Opened"); + isWebSocketConnected = true; + } else if (event == WebsocketsEvent::ConnectionClosed) { + Serial.println("Connnection Closed"); + isWebSocketConnected = false; + } else if (event == WebsocketsEvent::GotPing) { + Serial.println("Got a Ping!"); + } else if (event == WebsocketsEvent::GotPong) { + Serial.println("Got a Pong!"); + } +} + +void i2s_install() { + // Set up I2S Processor configuration + const i2s_config_t i2s_config = { + .mode = i2s_mode_t(I2S_MODE_MASTER | I2S_MODE_RX), + .sample_rate = 44100, + //.sample_rate = 16000, + .bits_per_sample = i2s_bits_per_sample_t(16), + .channel_format = I2S_CHANNEL_FMT_ONLY_LEFT, + .communication_format = i2s_comm_format_t(I2S_COMM_FORMAT_STAND_I2S), + .intr_alloc_flags = 0, + .dma_buf_count = bufferCnt, + .dma_buf_len = bufferLen, + .use_apll = false + }; + + i2s_driver_install(I2S_PORT, &i2s_config, 0, NULL); +} + +void i2s_setpin() { + // Set I2S pin configuration + const i2s_pin_config_t pin_config = { + .bck_io_num = I2S_SCK, + .ws_io_num = I2S_WS, + .data_out_num = -1, + .data_in_num = I2S_SD + }; + + i2s_set_pin(I2S_PORT, &pin_config); +} + +void setup() { + Serial.begin(115200); + + connectWiFi(); + connectWSServer(); + xTaskCreatePinnedToCore(micTask, "micTask", 10000, NULL, 1, NULL, 1); +} + +void loop() { +} + +void connectWiFi() { + WiFi.begin(ssid, password); + + while (WiFi.status() != WL_CONNECTED) { + delay(500); + Serial.print("."); + } + Serial.println(""); + Serial.println("WiFi connected"); +} + +void connectWSServer() { + client.onEvent(onEventsCallback); + while (!client.connect(websocket_server_host, websocket_server_port, "/")) { + delay(500); + Serial.print("."); + } + Serial.println("Websocket Connected!"); +} + + +void micTask(void* parameter) { + + i2s_install(); + i2s_setpin(); + i2s_start(I2S_PORT); + + size_t bytesIn = 0; + while (1) { + esp_err_t result = i2s_read(I2S_PORT, &sBuffer, bufferLen, &bytesIn, portMAX_DELAY); + if (result == ESP_OK && isWebSocketConnected) { + client.sendBinary((const char*)sBuffer, bytesIn); + } + } +} \ No newline at end of file diff --git a/ESP32_MICROPHONE/Broadcasting_Your_Voice/wsAudioServer/audio_client.html b/ESP32_MICROPHONE/Broadcasting_Your_Voice/wsAudioServer/audio_client.html new file mode 100644 index 0000000..354fcd3 --- /dev/null +++ b/ESP32_MICROPHONE/Broadcasting_Your_Voice/wsAudioServer/audio_client.html @@ -0,0 +1,128 @@ + + + PCM Player + + + + + + + + + + +

ESP32-S3 + I²S Digital Microphone

+

Connect to WebSocket by pressing the [Connect] button first!

+ +
+ + +
+ + + \ No newline at end of file diff --git a/ESP32_MICROPHONE/Broadcasting_Your_Voice/wsAudioServer/image/favicon.ico b/ESP32_MICROPHONE/Broadcasting_Your_Voice/wsAudioServer/image/favicon.ico new file mode 100755 index 0000000..2f631d4 Binary files /dev/null and b/ESP32_MICROPHONE/Broadcasting_Your_Voice/wsAudioServer/image/favicon.ico differ diff --git a/ESP32_MICROPHONE/Broadcasting_Your_Voice/wsAudioServer/js/worker.js b/ESP32_MICROPHONE/Broadcasting_Your_Voice/wsAudioServer/js/worker.js new file mode 100644 index 0000000..668d1ed --- /dev/null +++ b/ESP32_MICROPHONE/Broadcasting_Your_Voice/wsAudioServer/js/worker.js @@ -0,0 +1,16 @@ +// worker.js +self.addEventListener('message', function (e) { + var mean = 0; + var samples_read = e.data.byteLength / 8; + if (samples_read > 0) { + + var byteArray = new Int16Array(e.data); + + for (var i = 0; i < samples_read; ++i) { + mean += (byteArray[i]); + } + + mean /= samples_read; + self.postMessage(mean); + } +}); \ No newline at end of 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-0,0 +1,16 @@ +{ + "name": "wsAudioServer", + "version": "1.0.0", + "description": "", + "main": "server.js", + "scripts": { + "test": "echo \"Error: no test specified\" && exit 1" + }, + "keywords": [], + "author": "Eric Nam", + "license": "ISC", + "dependencies": { + "express": "^4.17.1", + "ws": "^7.2.0" + } +} diff --git a/ESP32_MICROPHONE/Broadcasting_Your_Voice/wsAudioServer/server.js b/ESP32_MICROPHONE/Broadcasting_Your_Voice/wsAudioServer/server.js new file mode 100644 index 0000000..7fecc80 --- /dev/null +++ b/ESP32_MICROPHONE/Broadcasting_Your_Voice/wsAudioServer/server.js @@ -0,0 +1,48 @@ +///////////////////////////////////////////////////////////////// +/* + Broadcasting Your Voice with ESP32-S3 & INMP441 + For More Information: https://youtu.be/qq2FRv0lCPw + Created by Eric N. (ThatProject) +*/ +///////////////////////////////////////////////////////////////// + +const path = require("path"); +const express = require("express"); +const WebSocket = require("ws"); +const app = express(); + +const WS_PORT = process.env.WS_PORT || 8888; +const HTTP_PORT = process.env.HTTP_PORT || 8000; + +const wsServer = new WebSocket.Server({ port: WS_PORT }, () => + console.log(`WS server is listening at ws://localhost:${WS_PORT}`) +); + +// array of connected websocket clients +let connectedClients = []; + +wsServer.on("connection", (ws, req) => { + console.log("Connected"); + // add new connected client + connectedClients.push(ws); + // listen for messages from the streamer, the clients will not send anything so we don't need to filter + ws.on("message", (data) => { + connectedClients.forEach((ws, i) => { + if (ws.readyState === ws.OPEN) { + ws.send(data); + } else { + connectedClients.splice(i, 1); + } + }); + }); +}); + +// HTTP stuff +app.use("/image", express.static("image")); +app.use("/js", express.static("js")); +app.get("/audio", (req, res) => + res.sendFile(path.resolve(__dirname, "./audio_client.html")) +); +app.listen(HTTP_PORT, () => + console.log(`HTTP server listening at http://localhost:${HTTP_PORT}`) +);