add esp32cam arduino code

diff --git a/projects/esp32_video_stream/esp32cam/esp32cam.ino b/projects/esp32_video_stream/esp32cam/esp32cam.ino
new file mode 100644 (file)
index 0000000..0086a24
--- /dev/null
+++ b/projects/esp32_video_stream/esp32cam/esp32cam.ino
@@ -0,0 +1,148 @@
+#include "esp_camera.h"
+#include <ArduinoWebsockets.h>
+#include <WiFi.h>
+#include <WiFiMulti.h>
+
+using namespace websockets;
+
+typedef struct {
+  const char *name;
+  const char *pwd;
+} WiFiItem_t;
+
+const char* websockets_server_host = "10.0.0.6";
+const uint16_t websockets_server_port = 80;
+
+WiFiItem_t WiFiTable[] = {
+  { "WiFiName1", "" },
+  { "WiFiName2", "12345678" },
+  { "WiFiName3", "87654321" }
+};
+
+const unsigned int WiFiCnt = sizeof(WiFiTable) / sizeof(WiFiItem_t);
+
+WebsocketsClient client;
+WiFiMulti wifiMulti;
+
+#define PWDN_GPIO_NUM     32
+#define RESET_GPIO_NUM    -1
+#define XCLK_GPIO_NUM      0
+#define SIOD_GPIO_NUM     26
+#define SIOC_GPIO_NUM     27
+
+#define Y9_GPIO_NUM       35
+#define Y8_GPIO_NUM       34
+#define Y7_GPIO_NUM       39
+#define Y6_GPIO_NUM       36
+#define Y5_GPIO_NUM       21
+#define Y4_GPIO_NUM       19
+#define Y3_GPIO_NUM       18
+#define Y2_GPIO_NUM        5
+#define VSYNC_GPIO_NUM    25
+#define HREF_GPIO_NUM     23
+#define PCLK_GPIO_NUM     22
+
+
+void setup_camera() {
+  camera_config_t config;
+  config.ledc_channel = LEDC_CHANNEL_0;
+  config.ledc_timer = LEDC_TIMER_0;
+  config.pin_d0 = Y2_GPIO_NUM;
+  config.pin_d1 = Y3_GPIO_NUM;
+  config.pin_d2 = Y4_GPIO_NUM;
+  config.pin_d3 = Y5_GPIO_NUM;
+  config.pin_d4 = Y6_GPIO_NUM;
+  config.pin_d5 = Y7_GPIO_NUM;
+  config.pin_d6 = Y8_GPIO_NUM;
+  config.pin_d7 = Y9_GPIO_NUM;
+  config.pin_xclk = XCLK_GPIO_NUM;
+  config.pin_pclk = PCLK_GPIO_NUM;
+  config.pin_vsync = VSYNC_GPIO_NUM;
+  config.pin_href = HREF_GPIO_NUM;
+  config.pin_sscb_sda = SIOD_GPIO_NUM;
+  config.pin_sscb_scl = SIOC_GPIO_NUM;
+  config.pin_pwdn = PWDN_GPIO_NUM;
+  config.pin_reset = RESET_GPIO_NUM;
+  config.xclk_freq_hz = 20000000;
+  config.pixel_format = PIXFORMAT_JPEG;
+  config.frame_size = FRAMESIZE_QVGA;
+  config.jpeg_quality = 10;
+  config.fb_count = 1;
+  
+
+  esp_err_t err = esp_camera_init(&config);
+  if (err != ESP_OK) {
+    Serial.printf("Camera init failed with error 0x%x", err);
+    return;
+  }
+
+}
+
+void setup_wifi() {
+
+  for (uint8_t t = 3; t > 0; t--) {
+    Serial.printf("[SETUP] WAIT %d...\n", t);
+    Serial.flush();
+    delay(1000);
+  }
+
+
+  for (uint8_t i = 0; i < WiFiCnt; i++) {
+    Serial.printf("Add AP %s %s\n", WiFiTable[i].name, WiFiTable[i].pwd);
+    wifiMulti.addAP(WiFiTable[i].name, WiFiTable[i].pwd);
+  }
+
+}
+
+void setup() {
+  Serial.begin(115200);
+
+  setup_camera();
+
+  setup_wifi();
+}
+
+
+
+void capture_video() {
+  camera_fb_t * fb = NULL;
+
+  fb = esp_camera_fb_get();
+  if (NULL == fb) {
+    Serial.println(F("Camera capture failed"));
+  } else {
+    client.sendBinary((const char *)fb->buf, fb->len);
+    esp_camera_fb_return(fb);
+    fb = NULL;
+  }
+}
+
+void loop() {
+
+  uint8_t wifiState = wifiMulti.run();
+  if ((wifiState != WL_CONNECTED)) {
+    Serial.printf("[WiFi] connected to wifi failed. ret %d\n", wifiState);
+    delay(1000);
+    return;
+  }
+
+  if (client.available()) {
+    capture_video();
+    client.poll();
+  } else {
+    Serial.println("Connected to Wifi, Connecting to server.");
+
+    bool connected = client.connect(websockets_server_host, websockets_server_port, "/video");
+    if (connected) {
+      Serial.println("Connected!");
+    } else {
+      Serial.println("Not Connected!");
+    }
+
+    // run callback when messages are received
+    client.onMessage([&](WebsocketsMessage message) {
+      Serial.print("Got Message: ");
+      Serial.println(message.data());
+    });
+  }
+}