Wifi Not Working

Question

Hi, I keep reading you can use wifi but tried it and no luck and don't know of anyone who got it to work. I asked Dj for help but no reply,did anyone get it to work and how thanks

DJ Sures · Answer

This is the tutorial page for Wifi: https://synthiam.com/Tutorials/Hardware.aspx?id=22

pittom · Answer

Tried it but can't get com port to work.I know others have tried with no luck.

DJ Sures · Answer

What do you mean by "Can't get com port to work"? As far as I know through the forum, anyone who has followed This Tutorial has had working wifi. Once you purchase a Wifi module, connecting to the EZ-B is simple. The Receive, Transmit, +5 and GND are the only wires you will need to connect. You will need to follow the directions for the Wifi module that you are using. We do recommend the Wifi module in that tutorial, but there are many others. There is no reason why one uart enabled wifi module would work and another would not. The communication from the EZ-B is TTL Serial Uart because it is a very popular communication protocol to support. Which Wifi module are you using?

pittom · Answer

I am using the same one in the tutorial,I might have a defective wifi module i am going to order another one and try again

Gunner · Answer

@pittom To confirm, you are first hooking up the WiFi module initially to your PC and programming it to the correct SSID/Password (either as Ad hoc or Infrastructure)? Or are you having issues getting it initially configured to the PC (via USB-TTL adapter?) in-order to program it? EDIT - Since there is a bunch of "prep & programming" required before you even plug it into the EZ-B... I guess what I should have asked is... at what step in the MANUAL are you running into issues

pittom · Answer

@Gunner ok have problem with USB-TTL adapter played with then got it to work,got it program left security open but should i use auto mode(i did) got virtual port working but will not connect.virtual port tries to connect

pittom · Answer

just got new wifi but it is auto mode tried hyper terminal and even tried this from other post and no luck, Posted at 7/5/2012 1:44:46 PM #4 I am sure following the instructions should do it. Simply connect the wifi to the ttl usb then open arduino next set the serial port to the specified com that the ttl is on. open the serial monitor type in +++ and hit send. You should receive +ok as a response, this should remove it from auto mode. From there you can use the wifi software to programm the wifi card.

pittom · Answer

Ok almost got it working,do i want auto mode?

Robot Doc · Answer

When the WiFi board is powered up it will not identify itself with the ip address you have obtained during your initial testing of the board and will not use the password needed to handshake with your router unless it is in the auto mode.

pittom · Answer

what ip address and port # should i use for auto mode,the same that i used for wifi card network setting ip

Robot Doc · Answer

There was a step in the documentation downloaded from the website for the initial setup of the USB WiFi that had you type in a command to obtain the ip address your router assigned when it first discovers the WiFi board. The port assigned is 8090. The ip to use is the same one that you sent the ping command to.

pittom · Answer

Ok several days of trying and here is where i am at. My new WIFI came in(USB-TTL module was bad on old one) all drivers loader and with help of this POST I did this setup SETUP LINK get to setup auto mode and here is what i get server address 0.0.0.0 stays connected to router 192.168.1.1 cycles every 10 seconds 192.168.1.139 does not connect i can ping fine when connected to router. a free virtual serial port thanks @robotmaker virtual serial port but won't connect with any settings i put in server address and yes every thing is all set to 9600. also set port forward 192.168.1.139 to port 8090 Don't know where to go from here,wish i was smarter stress

pittom · Answer

sorry pic

robotmaker · Answer

WHAT wifi board are you using

pittom · Answer

synthiam.com/Tutorials/Hardware.aspx?id=22

Rich · Answer

I've only seen the last few posts and not read the instructions for the wifi board and this is purely assumptions but shouldn't it be set to server not client? What happens then? I'd also put a timeout in there, 120 should be fine but up it if you feel you need to.

robotmaker · Answer

havent got that board,but looking to get it,one i got is little different but has same output i havent tested it yet on EZB waiting on RJ45 protoboard board to come in to have both WIFI and wired network on EZB,i think both should work ok only thing i check that the virtual port shows up on EZB as com 5 and on my computer may be your board it bad or ? have you tested it with the software from elechouse

robotmaker · Answer

also might check your firewall to see if you have that port added,if not can add one easy

Rich · Answer

just had a quick (and I mean really quick) search on this and everything I come across showed it being set to server not client

pittom · Answer

1virtual port shows up on EZB as com 5 and on my computer ( yes ) 2have you tested it with the software from elechouse ( yes ) 3~ it being set to server not client ( ok i will check that ) thanks this is driving me nuts and can't put computer on rc robot.If i get this to work (make me happy) and @Dj will have a new way to sell his product that we all love.

robotmaker · Answer

couple of other things to check i see it needs 5 volts for that board check the voltage on EZB other item check your EZB again with bluetooth to see if your EZB is ok another item last resort switch the pins tx and rx there are other tests to try,i forgot the name right now but you need to tie tx and rx on wifi board and use term program second is you wifi on your computer setup and wifi board on computer shows it listed at networking i am very good at it

Rich · Answer

@pittom did you get it working? I'm looking at using the same board for my build as bluetooth isn't good enough for the range I need

pittom · Answer

so so, i got it to connect but ez gives me some data (some readings on voltage monitoring ) but that's all, my scanning servo won't even move. I think data is supper slow,rechecked ez with bluetooth and works.@richmr2 was wright i had it in clint not server mode. Still trying

robotmaker · Answer

SO how its in the setting,you should get near 54mbps

Robot Doc · Answer

I couldn't login to the free single virtual port GUI so found one that does the same thing but costs $99 a port. I still can't access EZ-B, here's what I get:

Found a fix, When using independent battery supplies to power the WiFi board and the EZ-B, the batteries need to share a common ground.

njKolin · Answer

Quote:Ok several days of trying and here is where i am at. My new WIFI came in(USB-TTL module was bad on old one) all drivers loader and with help of this POST I did this setup SETUP LINK get to setup auto mode and here is what i get server address 0.0.0.0 stays connected to router 192.168.1.1 cycles every 10 seconds 192.168.1.139 does not connect i can ping fine when connected to router. a free virtual serial port thanks @robotmaker virtual serial port but won't connect with any settings i put in server address and yes every thing is all set to 9600. also set port forward 192.168.1.139 to port 8090 Don't know where to go from here,wish i was smarter stress :DThanks for the manual, I managed to repeat your path and with the server assignment and virtual serial port everything worked as Rich advised

pittom

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