GR-LYCHEE Special Project: Let's Try Making a Web Camera!

This project provides details on how to use the Gadget Renesas GR-LYCHEE board as a web camera to display images on a web browser using Wi-Fi. GR-LYCHEE has an ESP32 module, which allows a connection between Wi-Fi and Bluetooth Low Energy (BLE).

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First, save the "index.htm" file for the browser display on the SD card.

• Right click on the following link and save "Save target to file" to download.

  index.htm GR-LYCHEE Web Camera Sample (HTM)

After saving, insert the SD card into the GR-LYCHEE board and execute the following sketch.

    
    #include <Arduino.h>
    #include <Camera.h>
    #include <SD.h>
    #include <HTTPServer.h>
    #include <mbed_rpc.h>
    #include <SdUsbConnect.h>
    #include <ESP32Interface.h>
     
    ESP32Interface network;
    #define WIFI_SSID "elecom2g01-45ea1e"
    #define WIFI_PW "renerene"
     
    Camera camera(320, 240);
    SdUsbConnect storage("storage");
     
    static int snapshot_req(const char ** pp_data) {
      size_t size = camera.createJpeg();
      *pp_data = (const char*)camera.getJpegAdr();
      return size;
    }
     
    void setup(void) {
     
      Serial.begin(9600);
      Serial.println("Starts.");
     
      // SD & USB
      Serial.print("Finding strage..");
      storage.wait_connect();
      Serial.println("done");
     
      camera.begin();
     
      Serial.print("Connecting Wi-Fi..");
      network.connect(WIFI_SSID, WIFI_PW, NSAPI_SECURITY_WPA_WPA2);
      Serial.println("done");
     
      Serial.print("MAC Address is ");
      Serial.println(network.get_mac_address());
      Serial.print("IP Address is ");
      Serial.println(network.get_ip_address());
      Serial.print("NetMask is ");
      Serial.println(network.get_netmask());
      Serial.print("Gateway Address is ");
      Serial.println(network.get_gateway());
      Serial.println("Network Setup OK\r\n");
     
      SnapshotHandler::attach_req(&snapshot_req);
      HTTPServerAddHandler<SnapshotHandler>("/camera"); //Camera
      FSHandler::mount("/storage", "/");
      HTTPServerAddHandler<FSHandler>("/");
      HTTPServerAddHandler<RPCHandler>("/rpc");
      HTTPServerStart(&network, 80);
     
    }
     
    void loop() {
    }
    

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