first commit
This commit is contained in:
Jérôme Delacotte
256
ESP8266_ArduCAM_Mini_OV2640_Capture/ESP8266_ArduCAM_Mini_OV2640_Capture.ino
Executable file
256
ESP8266_ArduCAM_Mini_OV2640_Capture/ESP8266_ArduCAM_Mini_OV2640_Capture.ino
Executable file
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#include <ESP8266WiFi.h>
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#include <WiFiClient.h>
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#include <ESP8266WebServer.h>
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#include <ESP8266mDNS.h>
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#include <Wire.h>
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#include <ArduCAM.h>
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#include <SPI.h>
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#include "memorysaver.h"
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// Enabe debug tracing to Serial port.
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#define DEBUGGING true
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// Here we define a maximum framelength to 64 bytes. Default is 256.
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#define MAX_FRAME_LENGTH 64
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#include <Wire.h>
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#include <ArduCAM.h>
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#include <SPI.h>
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#include "memorysaver.h"
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// Enabe debug tracing to Serial port.
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#define DEBUGGING true
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// Here we define a maxi
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// Define how many callback functions you have. Default is 1.
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#define CALLBACK_FUNCTIONS 1
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//#if defined(ESP8266)
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// set GPIO15 as the slave select :
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const int CS = 16;
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//#else
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//// set pin 10 as the slave select :
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//const int CS = 10;
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//#endif
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int wifiType = 0; // 0:Station 1:AP
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const char* ssid = "Livebox-37cc"; // Put your SSID here
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const char* password = "8A6060920A8A86896F770F2C47"; // Put your PASSWORD here
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ESP8266WebServer server(80);
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ArduCAM myCAM(OV2640, CS);
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void start_capture(){
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myCAM.clear_fifo_flag();
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myCAM.start_capture();
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}
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void camCapture(ArduCAM myCAM){
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WiFiClient client = server.client();
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size_t len = myCAM.read_fifo_length();
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if (len >= 393216){
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Serial.println("Over size.");
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return;
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}else if (len == 0 ){
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Serial.println("Size is 0.");
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return;
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}
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myCAM.CS_LOW();
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myCAM.set_fifo_burst();
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SPI.transfer(0xFF);
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if (!client.connected()) return;
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String response = "HTTP/1.1 200 OK\r\n";
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response += "Content-Type: image/jpeg\r\n";
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response += "Content-Length: " + String(len) + "\r\n\r\n";
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server.sendContent(response);
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static const size_t bufferSize = 4096;
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static uint8_t buffer[bufferSize] = {0xFF};
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while (len) {
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size_t will_copy = (len < bufferSize) ? len : bufferSize;
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SPI.transferBytes(&buffer[0], &buffer[0], will_copy);
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if (!client.connected()) break;
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client.write(&buffer[0], will_copy);
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len -= will_copy;
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}
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myCAM.CS_HIGH();
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}
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void serverCapture(){
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start_capture();
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Serial.println("CAM Capturing");
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int total_time = 0;
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total_time = millis();
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while (!myCAM.get_bit(ARDUCHIP_TRIG, CAP_DONE_MASK));
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total_time = millis() - total_time;
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Serial.print("capture total_time used (in miliseconds):");
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Serial.println(total_time, DEC);
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total_time = 0;
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Serial.println("CAM Capture Done!");
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total_time = millis();
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camCapture(myCAM);
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total_time = millis() - total_time;
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Serial.print("send total_time used (in miliseconds):");
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Serial.println(total_time, DEC);
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Serial.println("CAM send Done!");
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}
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void serverStream(){
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WiFiClient client = server.client();
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String response = "HTTP/1.1 200 OK\r\n";
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response += "Content-Type: multipart/x-mixed-replace; boundary=frame\r\n\r\n";
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server.sendContent(response);
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while (1){
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start_capture();
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while (!myCAM.get_bit(ARDUCHIP_TRIG, CAP_DONE_MASK));
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size_t len = myCAM.read_fifo_length();
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if (len >= 393216){
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Serial.println("Over size.");
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continue;
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}else if (len == 0 ){
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Serial.println("Size is 0.");
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continue;
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}
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myCAM.CS_LOW();
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myCAM.set_fifo_burst();
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SPI.transfer(0xFF);
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if (!client.connected()) break;
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response = "--frame\r\n";
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response += "Content-Type: image/jpeg\r\n\r\n";
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server.sendContent(response);
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static const size_t bufferSize = 4096;
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static uint8_t buffer[bufferSize] = {0xFF};
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while (len) {
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size_t will_copy = (len < bufferSize) ? len : bufferSize;
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SPI.transferBytes(&buffer[0], &buffer[0], will_copy);
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if (!client.connected()) break;
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client.write(&buffer[0], will_copy);
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len -= will_copy;
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}
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myCAM.CS_HIGH();
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if (!client.connected()) break;
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}
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}
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void handleNotFound(){
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String message = "Server is running!\n\n";
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message += "URI: ";
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message += server.uri();
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message += "\nMethod: ";
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message += (server.method() == HTTP_GET)?"GET":"POST";
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message += "\nArguments: ";
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message += server.args();
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message += "\n";
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server.send(200, "text/plain", message);
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if (server.hasArg("ql")){
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int ql = server.arg("ql").toInt();
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myCAM.OV2640_set_JPEG_size(ql);
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Serial.println("QL change to: " + server.arg("ql"));
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}
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}
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void setup() {
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uint8_t vid, pid;
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uint8_t temp;
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#if defined(__SAM3X8E__)
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Wire1.begin();
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#else
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Wire.begin();
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#endif
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Serial.begin(115200);
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Serial.println("ArduCAM Start!");
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// set the CS as an output:
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pinMode(CS, OUTPUT);
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// initialize SPI:
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SPI.begin();
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SPI.setFrequency(4000000); //4MHz
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//Check if the ArduCAM SPI bus is OK
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myCAM.write_reg(ARDUCHIP_TEST1, 0x55);
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temp = myCAM.read_reg(ARDUCHIP_TEST1);
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if (temp != 0x55){
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Serial.println("SPI1 interface Error!");
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while(1);
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}
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//Check if the camera module type is OV2640
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myCAM.wrSensorReg8_8(0xff, 0x01);
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myCAM.rdSensorReg8_8(OV2640_CHIPID_HIGH, &vid);
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myCAM.rdSensorReg8_8(OV2640_CHIPID_LOW, &pid);
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if ((vid != 0x26) || (pid != 0x41)){
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Serial.println("Can't find OV2640 module!");
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while(1);
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}else{
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Serial.println("OV2640 detected.");
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}
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//Change to JPEG capture mode and initialize the OV2640 module
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myCAM.set_format(JPEG);
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myCAM.InitCAM();
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myCAM.OV2640_set_JPEG_size(OV2640_640x480);
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myCAM.clear_fifo_flag();
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myCAM.write_reg(ARDUCHIP_FRAMES, 0x00);
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if (wifiType == 0){
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// Connect to WiFi network
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Serial.println();
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Serial.println();
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Serial.print("Connecting to ");
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Serial.println(ssid);
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WiFi.mode(WIFI_STA);
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WiFi.begin(ssid, password);
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while (WiFi.status() != WL_CONNECTED) {
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delay(500);
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Serial.print(".");
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}
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Serial.println("WiFi connected");
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Serial.println("");
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Serial.println(WiFi.localIP());
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}else if (wifiType == 1){
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Serial.println();
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Serial.println();
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Serial.print("Share AP: ");
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Serial.println(ssid);
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WiFi.mode(WIFI_AP);
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WiFi.softAP(ssid, password);
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Serial.println("");
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Serial.println(WiFi.softAPIP());
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}
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// Start the server
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server.on("/capture", HTTP_GET, serverCapture);
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server.on("/stream", HTTP_GET, serverStream);
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server.onNotFound(handleNotFound);
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server.begin();
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Serial.println("Server started");
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}
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void loop() {
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server.handleClient();
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}
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