PTZ Control on ONVIF Standard in C#

Looking at highly price Camera SDK to handle ONVIF Standard, I decided to build some code to control PTZ camera movement using C#.

It it a nice tutorial video by Onvif Channel. That video describes basic step to make a C# project on visual studio. Unfortunately, I can’t get it work for my camera. I’m having YooSee camera GW-1113 which is already support PTZ Control.

There is another tutorial in CodeProject to use PTZ Control. My code is always get a closed connection message from the camera. Both using password or nor, it alway failed. Next, I got nice tool to cek my Onvif Camera. It can detect camera’s IP, port, display video stream and controlling camera using PTZ. You can get it here https://sourceforge.net/projects/onvifdm/ Afterward, I got IP, Port, and service.

With correct IP, Password, port and service address, it still error on getProfiles() command. I inisiate to find tool to debug Onvif request. I grab this tool in this forum https://support.yooseecamera.com/threads/233/ Nice step by step tutorial with pictures. I made my dummy service and dump post header request and then save it into textfile. Here is PHP code i got from // https://gist.github.com/magnetikonline/650e30e485c0f91f2f40 to dump request. I save it on http://localhost:5000/onvif/device_service/index.php

<?php

class DumpHTTPRequestToFile {

	public function execute($targetFile) {

		$data = sprintf(
			"%s %s %s\n\nHTTP headers:\n",
			$_SERVER['REQUEST_METHOD'],
			$_SERVER['REQUEST_URI'],
			$_SERVER['SERVER_PROTOCOL']
		);

		foreach ($this->getHeaderList() as $name => $value) {
			$data .= $name . ': ' . $value . "\n";
		}

		$data .= "\nRequest body:\n";

		file_put_contents(
			$targetFile,
			$data . file_get_contents('php://input') . "\n"
		);

		echo("Done!\n\n");
	}

	private function getHeaderList() {

		$headerList = [];
		foreach ($_SERVER as $name => $value) {
			if (preg_match('/^HTTP_/',$name)) {
				// convert HTTP_HEADER_NAME to Header-Name
				$name = strtr(substr($name,5),'_',' ');
				$name = ucwords(strtolower($name));
				$name = strtr($name,' ','-');

				// add to list
				$headerList[$name] = $value;
			}
		}

		return $headerList;
	}
}


(new DumpHTTPRequestToFile)->execute('./dumprequest.txt');
exit();

And here are resutl I got from C# and Device Test Tool

POST /onvif/device_service/index.php HTTP/1.1

HTTP headers:
Host: localhost
Expect: 100-continue
Accept-Encoding: gzip, deflate
Connection: Keep-Alive

Request body:
<?xml version="1.0" encoding="utf-8"?><s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope"><s:Body xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><GetCapabilities xmlns="http://www.onvif.org/ver10/device/wsdl" /></s:Body></s:Envelope>


POST /onvif/device_service/index.php HTTP/1.1

HTTP headers:
Host: localhost
Accept: */*

Request body:
<?xml version="1.0" encoding="utf-8"?><s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope"><s:Body xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><GetCapabilities xmlns="http://www.onvif.org/ver10/device/wsdl" /></s:Body></s:Envelope>


Above was C# request, while next into it was Tool request You can see that the difference is only at HTTP headers section. Thus, I have to remove Expect:100-continue , gzip compression and Keep-Alive Connection (oprional). As well as add an Accept type.

            try
            {
                var messageElement = new TextMessageEncodingBindingElement()
                {
                    MessageVersion = MessageVersion.CreateVersion(
                      EnvelopeVersion.Soap12, AddressingVersion.None)
                };

                HttpTransportBindingElement httpBinding = new HttpTransportBindingElement()
                {
                    AuthenticationScheme = AuthenticationSchemes.Digest

                };
                //remove compression
                httpBinding.DecompressionEnabled = false;
                // remove keep alive
                httpBinding.KeepAliveEnabled = false;


                CustomBinding bind = new CustomBinding(messageElement, httpBinding);
                // Remove Expect
                ServicePoint servicePoint =
                    ServicePointManager.FindServicePoint(service_uri);
                servicePoint.Expect100Continue = false;

                if (searchServiceUri)
                {
                    // now execute some service operation 
                    Device.DeviceClient device = new Device.DeviceClient(bind,
                      new EndpointAddress(service_uri));
                    device.ClientCredentials.HttpDigest.AllowedImpersonationLevel =
                      System.Security.Principal.TokenImpersonationLevel.Impersonation;
                    device.ClientCredentials.HttpDigest.ClientCredential.UserName = userName;
                    device.ClientCredentials.HttpDigest.ClientCredential.Password = password;

                    Device.Capabilities cap = device.GetCapabilities(null);

                }

Later I got nice php script to controlling PTZ at https://github.com/sergejey/majordomo-onvif/blob/master/modules/onvif/class.ponvif.php

Menggunakan SharpDX untuk Joystick

Tambahkan paket NuGet SharpDX.DirectInput

using System;
using System.Threading;

using SharpDX.DirectInput;

namespace PanelRosita
{

    public enum ButtonState : int
    {
        Idle = -1,
        Released = 0,
        Pressed = 128
    }

    public class JoystickThread
    {
        public Thread thr;
        public bool conditionToExitReceived = false;
        public bool isJoystickDetected = false;

        public JoystickThread(string name)
        {

            // detecting joystick
            // Initialize DirectInput
            var directInput = new DirectInput();

            // Find a Joystick Guid
            var joystickGuid = Guid.Empty;

            var devInstance = new DeviceInstance();

            foreach (var deviceInstance in directInput.GetDevices(DeviceType.Gamepad,
                        DeviceEnumerationFlags.AllDevices))
            {
                joystickGuid = deviceInstance.InstanceGuid;
                devInstance = deviceInstance;
            }

            // If Gamepad not found, look for a Joystick
            if (joystickGuid == Guid.Empty)
                foreach (var deviceInstance in directInput.GetDevices(DeviceType.Joystick,
                        DeviceEnumerationFlags.AllDevices))
                {
                    joystickGuid = deviceInstance.InstanceGuid;
                    devInstance = deviceInstance;
                }

            // If Joystick not found, throws an error
            if (joystickGuid == Guid.Empty)
            {
                Console.WriteLine("No joystick/Gamepad found.");
                conditionToExitReceived = true;
                throw new Exception("No joystick/Gamepad found.");
            }

            // Instantiate the joystick
            var joystick = new Joystick(directInput, joystickGuid);
            Console.WriteLine("Found Joystick/Gamepad with GUID: {0}", joystickGuid);


            thr = new Thread(() => RunThread(joystick) );
            thr.Name = name;
            thr.Start();
            isJoystickDetected = true;
        }

        // Enetring point for thread 
        void RunThread(Joystick joystick)
        {


            // Query all suported ForceFeedback effects
            Console.WriteLine("Effect:");
            var allEffects = joystick.GetEffects();
            foreach (var effectInfo in allEffects)
                Console.WriteLine("Effect available {0}", effectInfo.Name);

            // Set BufferSize in order to use buffered data.
            joystick.Properties.BufferSize = 128;

            // Acquire the joystick
            joystick.Acquire();

            try
            {
                while (true)
                {
                    if (conditionToExitReceived) // what im waiting for...
                    {
                        Console.WriteLine("Thread is finished");
                        break;
                    }
                    Thread.Sleep(10); // wait 1 second for something to happen.
                    doStuff(ref joystick);
                }
                //perform cleanup if there is any...

            }
            catch (ThreadAbortException ex)
            {
                Console.WriteLine("Thread " + thr.Name + " is aborted and the code is "
                                                 + ex.ExceptionState);
            }
        }

        private void doStuff(ref Joystick joystick)
        {

            try
            {
                joystick.Poll();


                var datas = joystick.GetBufferedData();
                foreach (var state in datas)
                {
                    JoystickButtonPressedEventArgs args = new JoystickButtonPressedEventArgs();
                    JoystickButtonPOVEventArgs povargs = new JoystickButtonPOVEventArgs();
                    args.Value = (ButtonState)state.Value;
                    args.ButtonOffset = state.RawOffset;
                    args.TimeStamp = DateTime.Now;

                    povargs.Value = state.Value;

                    if (state.Offset == JoystickOffset.Buttons0)
                    {
                        OnJoystickButton0(args);
                    }
                    if (state.Offset == JoystickOffset.PointOfViewControllers0)
                    {
                        OnJoystickPointOfViewControllers0(povargs);
                    }

                    if (state.Offset != JoystickOffset.X &amp;&amp; state.Offset != JoystickOffset.Y &amp;&amp; state.Offset != JoystickOffset.RotationZ)
                    {
                        Console.WriteLine("Joystick: " + state);
                    }
                }
            }
            catch (Exception ee)
            {
                OnJoystickDisconnected(ee.Message);
                conditionToExitReceived = true;
                Console.WriteLine("Joystick: " + ee);
                isJoystickDetected = false;
            }
        }

        public class JoystickButtonPressedEventArgs : EventArgs
        {
            public ButtonState Value { get; set; }
            public int ButtonOffset { get; set; }
            public DateTime TimeStamp { get; set; }
        }
        public class JoystickButtonPOVEventArgs : EventArgs
        {
            public int Value { get; set; }
            public int ButtonOffset { get; set; }
            public DateTime TimeStamp { get; set; }
        }

        public event EventHandler<String> OnDisconnected0;
        protected virtual void OnJoystickDisconnected(String e)
        {
            EventHandler<String> handler = OnDisconnected0;
            if (handler != null)
            {
                handler(this, e);
            }
        }

        public event EventHandler<JoystickButtonPressedEventArgs> OnButton0;
        protected virtual void OnJoystickButton0(JoystickButtonPressedEventArgs e)
        {
            EventHandler<JoystickButtonPressedEventArgs> handler = OnButton0;
            if (handler != null)
            {
                handler(this, e);
            }
        }
        public event EventHandler<JoystickButtonPOVEventArgs> OnPointOfViewControllers0;
        protected virtual void OnJoystickPointOfViewControllers0(JoystickButtonPOVEventArgs e)
        {
            EventHandler<JoystickButtonPOVEventArgs> handler = OnPointOfViewControllers0;
            if (handler != null)
            {
                handler(this, e);
            }
        }




    }
}


Penggunaan

       JoystickThread jt;
       private void Form1_Load(object sender, EventArgs e)
        {
            ConnectingToJoystick(FindingJoystick());
        }


        private void ErrorBox(string v)
        {
            MessageBox.Show(v,Application.ProductName, MessageBoxButtons.OK, MessageBoxIcon.Error, MessageBoxDefaultButton.Button1);
        }

        private void ConnectingToJoystick(bool joystickDetected)
        {
            if (joystickDetected)
            {
                try
                {
                    jt = new JoystickThread("JoyStick");
                    if (jt.isJoystickDetected)
                    {
                        //add all event here
                        jt.OnButton0 += Jt_OnButton0;
                        jt.OnDisconnected0 += Jt_OnDisconnected0;
                        jt.OnPointOfViewControllers0 += Jt_OnPointOfViewControllers0;
                        jt.isJoystickDetected = true;
                    }
                    else {
                        ErrorBox("Joystick tidak terdeteksi atau tidak kompatibel");
                    }
                }
                catch (Exception ee)
                {
                    ErrorBox("Joystick:" + ee.Message);
                }
            }
        }


        private static bool FindingJoystick()
        {
            Boolean joystickDetected = false;

            // Initialize DirectInput
            var directInput = new DirectInput();

            while (!joystickDetected)
            {

                var devInstance = new DeviceInstance();

                // Find a Joystick Guid
                var joystickGuid = Guid.Empty;

                foreach (var deviceInstance in directInput.GetDevices(DeviceType.Gamepad,
                            DeviceEnumerationFlags.AllDevices))
                {
                    joystickGuid = deviceInstance.InstanceGuid;
                    devInstance = deviceInstance;
                }

                // If Gamepad not found, look for a Joystick
                if (joystickGuid == Guid.Empty)
                    foreach (var deviceInstance in directInput.GetDevices(DeviceType.Joystick,
                            DeviceEnumerationFlags.AllDevices))
                    {
                        joystickGuid = deviceInstance.InstanceGuid;
                        devInstance = deviceInstance;
                    }

                // If Joystick not found, throws an error
                if (joystickGuid == Guid.Empty)
                {
                    Console.WriteLine("No joystick/Gamepad found.");
                    DialogResult rst = MessageBox.Show("Joystick tidak ditemukan atau tidak terhubung. Hubungkan joystick dan klik RETRY, atau klik CANCEL untuk tidak menggunakan joystick.", Application.ProductName, MessageBoxButtons.RetryCancel, MessageBoxIcon.Warning);
                    if (rst == DialogResult.Cancel)
                    {
                        return joystickDetected;
                    }
                }
                else
                {
                    joystickDetected = true;
                }
            }
            return joystickDetected;
        }

       private void Jt_OnDisconnected0(object sender, string e)
        {
            //stop robot

            //Finding joystick
            DialogResult rst = MessageBox.Show("No Joystick found. Please Connect the joystick.", Application.ProductName, MessageBoxButtons.RetryCancel, MessageBoxIcon.Warning);
            if (rst == DialogResult.Retry)
            {
                ConnectingToJoystick(FindingJoystick());
            }
        }

        private void Jt_OnPointOfViewControllers0(object sender, JoystickThread.JoystickButtonPOVEventArgs e)
        {
            MessageBox.Show("POV value: "+e.Value.ToString());
        }

        private void Jt_OnButton0(object sender, JoystickThread.JoystickButtonPressedEventArgs e)
        {
            String state = "";
            if (e.Value == ButtonState.Pressed)
                state = "Pencet";
            else
                state = "Lepas";

            //Invoke state to button1
            //button1.Invoke(new Action(() => button1.Text = state));

        }


        //Add event on FormClosing to release object
        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            if (jt != null)
            {
                //force to abort
                //jt.thr.Abort("aborted from Main");

                //ask thread to exit polling
                jt.conditionToExitReceived = true;
                
                // Waiting for a thread to terminate. 
                jt.thr.Join();
                Console.WriteLine(jt.thr.Name + " is terminate");
            }
        }

Tutorial CefSharp

Buka Menu: Project -> Manage NuGet Package

Pasang CefSharp.Winform, CefSharp.Common

Ganti Target Net 4.5.2 keatas dan platform configuration (x86, x64 or AnyCPU)

Jika menggunakan AnyCPU, bagian Project > Your Project Properties > Build centang bagian Prefer-32bit. Jika menggunakan x64, buatlah Configurasi untuk x64 (Silahkan googling)

Perbaiki file .csproj

Tambahkan sebelum tag </PropertyGroup>

<CefSharpAnyCpuSupport>true</CefSharpAnyCpuSupport>

Configuration Error

jika menemukan: Please check to make sure that you have specified a valid combination of Configuration and Platform for this project. Maka buka

Klik kanan Project > Properties > Build lalu cut pada bagian Output Path. Selanjutnya Build project lalu paste lagi di tempat semula. Selanjutnya silahkan coba rebuild lagi.

program.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;

using CefSharp;
using CefSharp.WinForms;
using System.IO;

namespace WindowsFormsApplication1
{
    static class Program
    {
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main()
        {
            Cef.EnableHighDPISupport();

            var settings = new CefSettings()
            {
                //By default CefSharp will use an in-memory cache, you need to specify a Cache Folder to persist data
                CachePath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "CefSharp\\Cache")
            };
            //Example of setting a command line argument
            //Enables WebRTC
            settings.CefCommandLineArgs.Add("enable-media-stream");

            //Perform dependency check to make sure all relevant resources are in our output directory.
            Cef.Initialize(settings, performDependencyCheck: true, browserProcessHandler: null);

            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form1());
        }
    }
}

Form1.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

using CefSharp;
using CefSharp.WinForms;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public ChromiumWebBrowser chromeBrowser;

        public Form1()
        {
            InitializeComponent();
            InitializeChromium();
        }

        public void InitializeChromium()
        {
            // Create a browser component
            //chromeBrowser = new ChromiumWebBrowser("http://admin:@192.168.43.10/video.cgi");
            chromeBrowser = new ChromiumWebBrowser("http://localhost:8001/camera/mjpeg");
            // Add it to the form and fill it to the form window.
            panel1.Controls.Add(chromeBrowser);
            chromeBrowser.Dock = DockStyle.Fill;

            //Wait for the page to finish loading (all resources will have been loaded, rendering is likely still happening)
            chromeBrowser.LoadingStateChanged += (sender, args) =>
            {
                //Wait for the Page to finish loading
                Console.WriteLine("Loading State Changed GoBack {0} GoForward {1} CanReload {2} IsLoading {3}", args.CanGoBack, args.CanGoForward, args.CanReload, args.IsLoading);
                if (args.CanReload &amp;&amp; !args.IsLoading)
                {
                    //chromeBrowser.Reload();
                }
            };

            chromeBrowser.IsBrowserInitializedChanged += OnIsBrowserInitializedChanged;

            //Wait for the MainFrame to finish loading
            chromeBrowser.FrameLoadEnd += (sender, args) =>
            {
                //Wait for the MainFrame to finish loading
//                if (args.Frame.IsMain)
                {
                    Console.WriteLine("MainFrame finished loading Status code {0}", args.HttpStatusCode);
                    if (args.HttpStatusCode == 200)
                    {
                        //finished, OK, streaming end
                        chromeBrowser.Reload();
                    }
                    if (args.HttpStatusCode == -101)
                    {
                        //finished, OK, streaming shut down
                        chromeBrowser.Reload();
                    }
                    if (args.HttpStatusCode == 0)
                    {
                        //The client request wasn't successful.
                        chromeBrowser.Reload();
                    }
                }
            };

        }

        private void ChromeBrowser_FrameLoadEnd(object sender, FrameLoadEndEventArgs e)
        {
            Console.WriteLine("end");
        }

        private void OnLoadingStateChanged(object sender, LoadingStateChangedEventArgs e)
        {
            Console.WriteLine(chromeBrowser.IsLoading);
        }

        private void OnIsBrowserInitializedChanged(object sender, EventArgs e)
        {
            var b = ((ChromiumWebBrowser)sender);

            this.InvokeOnUiThreadIfRequired(() => b.Focus());
        }

        private void button1_Click(object sender, EventArgs e)
        {
            string url = textBox1.Text;
            if (Uri.IsWellFormedUriString(url, UriKind.RelativeOrAbsolute))
            {
                chromeBrowser.Load(url);
            }
        }
    }


    public static class ControlExtensions
    {
        /// <summary>
        /// Executes the Action asynchronously on the UI thread, does not block execution on the calling thread.
        /// </summary>
        /// <param name="control">the control for which the update is required</param>
        /// <param name="action">action to be performed on the control</param>
        public static void InvokeOnUiThreadIfRequired(this Control control, Action action)
        {
            //If you are planning on using a similar function in your own code then please be sure to
            //have a quick read over https://stackoverflow.com/questions/1874728/avoid-calling-invoke-when-the-control-is-disposed
            //No action
            if (control.Disposing || control.IsDisposed || !control.IsHandleCreated)
            {
                return;
            }

            if (control.InvokeRequired)
            {
                control.BeginInvoke(action);
            }
            else
            {
                action.Invoke();
            }
        }
    }
}

sumber: https://ourcodeworld.com/articles/read/173/how-to-use-cefsharp-chromium-embedded-framework-csharp-in-a-winforms-application

Printer POS USB menggunakan PHP

<?php  
$tmpdir = sys_get_temp_dir();   # ambil direktori temporary untuk simpan file.
$file =  tempnam($tmpdir, 'ctk');  # nama file temporary yang akan dicetak (Windows, samba)

$handle = fopen($file, 'w');


//Printer parameter (ESC POS Command)
$initialized = chr(27).chr(64);

$justify = Chr(27) . Chr(97);
$left = Chr(0); $center = Chr(1);$right = Chr(2);

$fontwidth = Chr(27).Chr(87);
$doublewidth = Chr(1); $normalwidth = Chr(0);

$LF = Chr(10);

//Start making data
$Data  = $initialized;
$Data .= $fontwidth.$doublewidth;
$Data .= $justify.$center;
$Data .= "NAMA TOKO"."\n";
$Data .= $fontwidth.$normalwidth;
$Data .= "Alamat Toko"."\n";
$Data .= $LF.$LF;

//Write data to temporary file
fwrite($handle, $Data);
fclose($handle);

//WIN: send temporary file to nerwork shared printer (share your printer)
//LINUX: send data directly to device
if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN'){ //Win
    copy($file, "//localhost/POS-58");  # Shared Printer as POS-58
}else if (strtoupper(substr(PHP_OS, 0, 3)) === 'LIN'){ //Linux    
    $device = "/dev/usb/lp0";           # Print at lp0, find it using lsusb! Use udev for managing user access
    if (is_writable($device)) {
        $fp =fopen($device, "w");
        if($fp) {
            fwrite($fp, $Data);
            fclose($fp);
        }
    }
}

unlink($file);
//echo $Data;

?>

Cara mencetak ke printer POS menggunakan PHP. Skrip ini mencontohkan jika menggunakan Windows maupun Linux.

Untuk menggunakan Windows maupun Linux, printer dibuat menjadi akses bersama (shared printer) terlebih dahulu lalu beri nama, misalnya: POS-58. Pastikan bisa diakses di //ALAMAT_IP/NAMA_PRINTER. Untuk skrip ini, menggunakan //localhost/POS-58 Untuk di Windows, buka di Control Panel, pastikan printer yang di-share sudah tersedia dan online.

Sedangkan jika menggunakan Linux, cari nama device dengan perintah:

ls /dev/usb

alamat device printer akan diawali dengan lpx, dimana x bisa 0,1,2 atau angka yang lain. Bagaimana bisa memastikan mana alamat device yang benar? gunakan perintah berikut:

echo "Test Printer" >> /dev/usb/lp0 

Jika printer bisa mencetak, berarti alamat printer adalah benar, yaitu /dev/usb/lp0 jika salah ganti angka 0 dengan angka 1 atau 2 atau angka lain hingga printer bisa mencetak. Pada skrip ini, alamat device perinter adalah /dev/usb/lp0

Install Font di NSIS

Unduh file berikut, taruh script header .nsh di folder include, dan library .dll di folder plugins (atau plugins/x86_ansi) jika menggunakan Windows 64bit

https://nsis.sourceforge.io/mediawiki/images/7/78/FontName-0.7.zip (installer, pindah FileName.dll ke x86_ansi jika OS 64bit) atau unduh https://file.io/yBr4UoFl

!include FontReg.nsh
!include FontName.nsh
!include WinMessages.nsh

StrCpy $FONT_DIR $FONTS
!insertmacro InstallTTFFont "SiapCetak\settings\fonts\SR.ttf"
SendMessage ${HWND_BROADCAST} ${WM_FONTCHANGE} 0 0 /TIMEOUT=5000

Jika menggunakan GDI

!include WinMessages.nsh

System::Call "GDI32::AddFontResourceA(t) i ('SR.ttf') .s"
Pop $0
# $0 is zero if the function failed
SendMessage ${HWND_BROADCAST} ${WM_FONTCHANGE} 0 0 /TIMEOUT=5000

Mencari lokasi MyDocument

Function "GetMyDocs"
  ReadRegStr $0 HKCU \
             "SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders" \
             Personal
FunctionEnd

Call "GetMyDocs"
$MyDocs = $0

Penerima Waktu Tunda WiFi

#ifdef ESP32
#include <esp_now.h>
#include <WiFi.h>
#else
#include <espnow.h>
#include <ESP8266WiFi.h>
#define ESP_OK 0
#endif

#define lampPin 0

bool lampON = false;
bool lock = false;


// struktur untuk pengiriman data harus sama dengan struktur pada penerima
typedef struct struct_message {
  int id;     //id pengirim, lock counter
  int x;      //on interval counter
  int y;      //motion (>0)
} struct_message;

struct_message myData;

// Membuat struktur untuk tiap board
struct_message board1;

struct_message boardsStruct[3] = {board1};

volatile int counter = 0;
int max_counter = 0;
int lock_counter = 1;

// callback saat data diterima
#ifdef ESP32
void OnDataRecv(const uint8_t * mac_addr, const uint8_t *incomingData, int len)
#else
void OnDataRecv(uint8_t * mac_addr, uint8_t *incomingData, uint8_t len)
#endif
{
  char macStr[18];
  Serial.print("Paket diterima dari: ");
  snprintf(macStr, sizeof(macStr), "%02x:%02x:%02x:%02x:%02x:%02x",
           mac_addr[0], mac_addr[1], mac_addr[2], mac_addr[3], mac_addr[4], mac_addr[5]);
  Serial.println(macStr);
  memcpy(&amp;myData, incomingData, sizeof(myData));
  Serial.printf("Board ID %u: %u bytes\n", myData.id, len);
  // Update the structures with the new incoming data
  boardsStruct[myData.id - 1].x = myData.x;
  boardsStruct[myData.id - 1].y = myData.y;
  Serial.printf("x value: %d \n", boardsStruct[myData.id - 1].x);
  Serial.printf("y value: %d \n", boardsStruct[myData.id - 1].y);
  Serial.println();

  if (!lock) counter = 0;

}


void setup() {
  Serial.begin(74880);
  Serial.println();
  Serial.print("ESP Board MAC Address:  ");
  Serial.println(WiFi.macAddress());

  WiFi.mode(WIFI_STA);

  //Init ESP-NOW
  if (esp_now_init() != ESP_OK) {
    Serial.println("Error initializing ESP-NOW");
    return;
  }

  //daftrakan callback
  esp_now_register_recv_cb(OnDataRecv);

  pinMode(lampPin, OUTPUT);
  Serial.println("Turn Off lamp");
  digitalWrite(lampPin, LOW);
  lampON = false;
}


void loop() {
  // Mengakses data dari setiap board
  //Serial.println(boardsStruct[0].x,DEC);
  //delay(1000);

  //update counter
  if (boardsStruct[0].x > 0)
    max_counter = boardsStruct[0].x;

  if (boardsStruct[0].id > 0)
    lock_counter = boardsStruct[0].id;

  //get motion information and restart counter?
  if (boardsStruct[0].y > 0 &amp;&amp; counter == 0) {
    if (!lampON) {
      Serial.println("Turn On lamp");
        digitalWrite(lampPin, HIGH);

      lampON = true;
    }
  }


  //stop counter turn off lamp
  if (counter >= max_counter &amp;&amp; lampON) {
    Serial.println("Turn Off lamp");
  digitalWrite(lampPin, LOW);
    lampON = false;
    lock = true;
    Serial.println("Lock");
    delay(lock_counter * 1000);
    Serial.println("Release");
    lock = false;
  }

  if (lampON) {
    counter++;
    Serial.print(max_counter - counter);
    delay(1000);
  }

}

Memulai Percobaan ESP-CAM

ESP-CAM memiliki LED pada pin GPIO33. LED ini akan kita gunakan untuk percobaan mati nyala kedip kedip.

Kode Blink pada Arduino

#define LED_BUILTIN 33    //LED ada di GPIO33

void setup() {
  pinMode(LED_BUILTIN, OUTPUT);
}

void loop() {
  digitalWrite(LED_BUILTIN, HIGH);   
  delay(1000);                       
  digitalWrite(LED_BUILTIN, LOW);    
  delay(1000);                       
}

Konfigurasi pilihan Board

Hubungkan USB-Serial atau dapat pula menggunakan Arduino (TX-TX, RX-RX)

Hubungkan GND dengan GPIO0 dan tekan reset.

Jika sudah berhasil Upload, lepas hubungan GND dengan GPIO0 (Kabel abu-abu) dan tekan reset.

Pengiriman Peer-to-Peer MCU ESP

Pengiriman dilakukan oleh LOLIN32 dengan MCU ESP32 sedangkan penerimaan dilakukan oleh ESP01 dengan MCU ESP8266. Potokol pengiriman menggunakan ESP-NOW. ESP-NOW adalah salah satu protokol hibungan WiFi yang dibesut oleh Espressif.

Skrip Pengiriman yang dibenamkan di LOLIN32

#ifdef ESP32
  #include <esp_now.h>
  #include <WiFi.h>
#else
  #include <espnow.h>
  #include <ESP8266WiFi.h>
#endif

 
// Ganti dengan MAC penerima
uint8_t broadcastAddress[] = {0xBC, 0xDD, 0xC2, 0x6B, 0x54, 0xC2};
 
// ID harus unik
const int id = 1;
 
// struktur untuk pengiriman data harus sama dengan struktur pada penerima
typedef struct struct_message {
    int id; 
    int x;
    int y;
} struct_message;
 
struct_message myData;
 
// callback saat data dikirim
void OnDataSent(const uint8_t *mac_addr, esp_now_send_status_t status) {
  Serial.print("Status pengiriman:\t");
  Serial.println(status == ESP_NOW_SEND_SUCCESS ? "Sukses" : "Gagal");
}
  
void setup() {
  Serial.begin(115200);
  WiFi.mode(WIFI_STA);
 
  // Init ESP-NOW
  if (esp_now_init() != ESP_OK) {
    Serial.println("Gagal inisialisasi ESP-NOW");
    return;
  }
 
  // registrasi ke penerima dan cek status paket
  esp_now_register_send_cb(OnDataSent);
   
  // Registrasi peer
  esp_now_peer_info_t peerInfo;
  memcpy(peerInfo.peer_addr, broadcastAddress, 6);
  peerInfo.channel = 0;  
  peerInfo.encrypt = false;
   
  // Menambahkan diri peer        
  if (esp_now_add_peer(&amp;peerInfo) != ESP_OK){
    Serial.println("Gagal menambahkan diri ke peer");
    return;
  }
}
  
void loop() {
  // Nilai untuk dikirim
  myData.id = 1;
  myData.x = random(0,50);
  myData.y = random(0,50);

  Serial.print("x:");Serial.println(myData.x,DEC);
  Serial.print("y:");Serial.println(myData.y,DEC);
  // Kirim pesan
  esp_err_t result = esp_now_send(broadcastAddress, (uint8_t *) &amp;myData, sizeof(myData));
    
  if (result == ESP_OK) {
    Serial.println("Permintaan pengiriman berhasil");
  }
  else {
    Serial.println("Gagal mengirim data");
  }
  delay(10000);
}

Skrip penerima yang dibenamkan di ESP01

#ifdef ESP32
  #include <esp_now.h>
  #include <WiFi.h>
#else
  #include <espnow.h>
  #include <ESP8266WiFi.h>
  #define ESP_OK 0
#endif

 // struktur untuk pengiriman data harus sama dengan struktur pada penerima
typedef struct struct_message {
  int id;
  int x;
  int y;
}struct_message;
 
struct_message myData;
 
// Membuat struktur untuk tiap board
struct_message board1;
 
struct_message boardsStruct[3] = {board1};
 
// callback saat data diterima
#ifdef ESP32
void OnDataRecv(const uint8_t * mac_addr, const uint8_t *incomingData, int len) 
#else
void OnDataRecv(uint8_t * mac_addr, uint8_t *incomingData, uint8_t len) 
#endif
{
  char macStr[18];
  Serial.print("Paket diterima dari: ");
  snprintf(macStr, sizeof(macStr), "%02x:%02x:%02x:%02x:%02x:%02x",
           mac_addr[0], mac_addr[1], mac_addr[2], mac_addr[3], mac_addr[4], mac_addr[5]);
  Serial.println(macStr);
  memcpy(&amp;myData, incomingData, sizeof(myData));
  Serial.printf("Board ID %u: %u bytes\n", myData.id, len);
  // Update the structures with the new incoming data
  boardsStruct[myData.id-1].x = myData.x;
  boardsStruct[myData.id-1].y = myData.y;
  Serial.printf("x value: %d \n", boardsStruct[myData.id-1].x);
  Serial.printf("y value: %d \n", boardsStruct[myData.id-1].y);
  Serial.println();
}

void setup(){
  Serial.begin(74880);
  Serial.println();
  Serial.print("ESP Board MAC Address:  ");
  Serial.println(WiFi.macAddress());

   WiFi.mode(WIFI_STA);
 
  //Init ESP-NOW
  if (esp_now_init() != ESP_OK) {
    Serial.println("Error initializing ESP-NOW");
    return;
  }
   
  //daftrakan callback
  esp_now_register_recv_cb(OnDataRecv);
}
  
void loop() {
  // Mengakses data dari setiap board
  //Serial.println(boardsStruct[0].x,DEC); 
  delay(1000);  
}

Hasil proses pengiriman lewat seriam monitor

Konfigurasi Perangkat Keras

Cara memprogram ESP01

Wiring dengan Modul Serial

Hubungkan IO0 dengan GND

Wiring dengan USB-TTL (Gunakan yang support 3,3 Volt) atau dapat juga menggunakan Board Arduino

Hubungkan IO0 dengan GND ESP ke pin GND USBTTL. Hubungkan EN dengan 3V3 ESP ke 3V3 USBTTL. TX ESP ke RX USBTTL dan RX ESP ke TX USBTTL.
(Jika mengunakan board Arduino, hubungkan RX ke RX dan TX ke TX)

Pilihan Setting Board

Board: “Generic ESP Module”
Flash Mode: “DIO” (Gunakan DOUT jika checksum error)
Flash Frequency: “40MHz”
CPU Frequency: “80 MHz”
Flash Size: “1M (64K SPIFFS)”
Debug Port: “Disabled”
Debug Level: “None”
Reset Method: “ck”
Upload Speed: “115200”

Contoh kode untuk blink (LED pada GPIO0)

/* 
 *  ESP01
 *  Upload Configuration:
 *  Generic 8266
 *  Flash Mode: DOUT (Using: DIO --> checksum Error)
 *  Debug: None
 *  Reset: ck
 *  CPU: 80Mhz
 *  Flash: 1M (64K)
 *  Debug Port: Disable
 *  Flash: 40Mhz
 *  Upload Speed: 115200
 *  
 *  Flashing ESP-01 using Esp8266 Serial Module Board
 *  Connect GPIO0 to GND
 *  
 *  Flash ESP-01 using USB to TTL 
 *  Connect GPIO0 to GND, EN to 3V3, RX-TX, TX-RX
 */

#define D3  0 //GPIO0
#define D4  2 //GPIO2
void setup() {
  //GPIO0
  pinMode(D3, OUTPUT);
  Serial.begin(74880);
}
void loop() {
  digitalWrite(D3, LOW); // turn the LED on (HIGH is the voltage level)
  delay(1000); // wait for a second
  digitalWrite(D3, HIGH); // turn the LED off by making the voltage LOW Serial.println("LOW");
  delay(1000); // wait for a second
  Serial.println("OK");
}

Untuk menjalankan hasil programming, lepas kabel IO0 terhadap GND dan lalukan reset (atau cabut pasang modul)

sumber: https://www.diyhobi.com/flash-program-esp-01-using-usb-serial-adapter/