hi everyone,

i ahve read all your comments over here thats look pretty much helpful. i am new to jd as well . as a computer science student i took jd project for my workplacement at my university. i had similar problem as well. i tried to connect with my ARC, its connect for like 10s and it disconnected. i did reboot and deleted my existiing profiles still not finding the soulution. what is the best way to find out?? and the next thing is if my laptop is connected to jd network, i am not able to use to used the univerisity Wifi- but it doesn't happen when its connect to the Uni's PC. am i missing something here ?

looking for your all answers. thanks

Is it disconnecting with the red led staying on the ezb? Check this Ezrobot related trouble shooting guide if so: https://synthiam.com/Tutorials/Trouble-Shooting.aspx

If the red led is. It staying on, it’s a disconnect from WiFi saturation. Change the WiFi channel on the ezb and try again. Also, might be a good idea to give your robot a WiFi password so no one else attempts to connect to it. You might just be experiencing people connecting to a network.

Lastly, if you want to connect to two networks at the same time (jd) and internet, either connect your jd to a known network or use two usb WiFi adapters. This is all documented in the jd getting started guide. It’s a real good idea to use the ezrovot getting started guide to learn how to use the product: https://synthiam.com/Tutorials/Lesson/125?courseId=1

There’s information in there on changing the WiFi and using two WiFi adapters etc

@ DJ Sures thank you for the response i am here at the uni lab right now still got the same problembs. here is the details EZB 0: EZB 1: EZB 2: EZB 3: EZB 4: Windows version: Microsoft Windows NT 10.0.17763.0 Screen Resolution: 1366x768 (96x96 dpi) Version: 2019.01.26.00 Attempting connection on 192.168.1.1:23 Connected to 192.168.1.1:23 Reports EZB v4 OS With Comm 2 EZ-B v4 ID: 46-50-0-0-120-255-56-57-58-37-37-37 Setting battery monitor voltage: 7 Setting battery protection: True Setting i2c rate: 100000 EZ-B voltage is 7.782804510 EZ-B temperature is 24.41855220238458108C Connected Object Recognition Initialized. Object Recognition loaded. Setting battery monitor voltage: 7 Setting battery protection: True Setting i2c rate: 300000 EZ-B voltage is 7.863915624 EZ-B temperature is 25.02440624839843800C Setting battery monitor voltage: 7 Setting battery protection: True Setting i2c rate: 300000 EZ-B voltage is 7.813703982 EZ-B temperature is 24.65562552473782944C Camera Initialized: EZB://192.168.1.1 @ 320x240 EZ-B v4 Camera Error: System.Exception: Client disconnected at EZ_B.EZBv4Video.zVZs5xa9ui(Int32  , Object  ) Camera Disabled Comm Err: System.IO.IOException: Unable to read data from the transport connection: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond. ---> System.Net.Sockets.SocketException: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond at System.Net.Sockets.Socket.Receive(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags) at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size) --- End of inner exception stack trace --- at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size) at EZ_B.EZB.NMpHIAC5uF(Int32  , Byte[] cmdData) BbytesToExpect: 2

Received: 0 0 Disconnected Attempting connection on 192.168.1.1:23 Connected to 192.168.1.1:23 Reports EZB v4 OS With Comm 2 EZ-B v4 ID: 46-50-0-0-120-255-56-57-58-37-37-37 Setting battery monitor voltage: 7 Setting battery protection: True Setting i2c rate: 300000 EZ-B voltage is 8.030000286 EZ-B temperature is 24.76099144578371760C Connected Camera Initialized: EZB://192.168.1.1 @ 320x240 EZ-B v4 Camera Error: System.Exception: Client disconnected at EZ_B.EZBv4Video.zVZs5xa9ui(Int32  , Object  ) Camera Disabled Comm Err: System.IO.IOException: Unable to read data from the transport connection: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond. ---> System.Net.Sockets.SocketException: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond at System.Net.Sockets.Socket.Receive(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags) at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size) --- End of inner exception stack trace --- at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size) at EZ_B.EZB.NMpHIAC5uF(Int32  , Byte[] cmdData) BbytesToExpect: 2

Received: 0 0 Disconnected Attempting connection on 192.168.1.1:23 Connection Failed: System.TimeoutException: The operation has timed out. at EZ_B.EZB.Connect(String hostname, Int32 baudRate) Disconnected Attempting connection on 192.168.1.1:23 Connected to 192.168.1.1:23 Reports EZB v4 OS With Comm 2 Comm Err: System.IO.IOException: Unable to read data from the transport connection: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond. ---> System.Net.Sockets.SocketException: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond at System.Net.Sockets.Socket.Receive(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags) at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size) --- End of inner exception stack trace --- at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size) at EZ_B.EZB.NMpHIAC5uF(Int32  , Byte[] cmdData) BbytesToExpect: 12

Received: 0 0 0 0 0 0 0 0 0 0 0 0 Disconnected EZ-B v4 ID: 0-0-0-0-0-0-0-0-0-0-0-0 Connected Attempting connection on 192.168.1.1:23 Connected to 192.168.1.1:23 Reports EZB v4 OS With Comm 2 Comm Err: System.IO.IOException: Unable to read data from the transport connection: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond. ---> System.Net.Sockets.SocketException: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond at System.Net.Sockets.Socket.Receive(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags) at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size) --- End of inner exception stack trace --- at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size) at EZ_B.EZB.NMpHIAC5uF(Int32  , Byte[] cmdData) BbytesToExpect: 2

Received: 0 0 Disconnected EZ-B v4 ID: 0-0-0-0-0-0-0-0-0-0-0-0 Connected

@pradeepsubedi93 you would have better luck on ez-robot's website looking at their FAQ for trouble shooting. But what i can suspect is you're trying to use an I2C device that's not connected. Or you're loading a project that's trying to connect to hardware that isn't existing. Or the controller isn't being provided with correct power source.

Here's the trouble shooting guide link for ez-robot: https://www.ez-robot.com/Tutorials/Trouble-Shooting.aspx

Those are the common reasons. But you haven't provided any information other than a log file that can help you. Check the EZ-Robot website and check their tutorials first. That's the best place for support of their product.

What all do you have attached to your i2c and camera ports? I'm not good at reading these logs but I see your log trying to start 3 i2c devices and a camera. The camera is getting an error.

If there is no device attached to a i2c port or you have an issue with your camera your going to disconnect. Bad connections or broken wires between these devices will also cause a disconnect.

Speaking of port problems and disconnects, another issue is if you try to send a bad command through a Uart port or have nothing attached to a Uart port then send a command the EZB will disconnect and freeze up.

Good luck and have fun.

@DJ Sures, Thank you for the Answere. and i need some more helps. basically i have made jd all parts sepersted and joind all the parts as shown in istructions now the movements are not working correctily. if i click the 'sit'it cannot control the body it just fall down. all the movements are not correct. i don't know what't the reason.

actually , i have a few robots in my lab and all of them had some kind of issues but i took all a working parts from each robots and try to make one working. everything is fine just movements are not right. if i say move forward, only right legs move and it just fall down.

i hope you can help me sir ..

Sounds like the servos are connected to incorrect positions. You would move incorrectly if your brain thought your arm was your leg