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Forum Index : Microcontroller and PC projects : 4 $ WiFi Serial Transceiver Module
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| viscomjim Guru  Joined: 08/01/2014 Location: United StatesPosts: 925 |
Hi Plasma, Here is a quick solution to your web time server. Yahoo has a time server and with a little change in the code you can get the time. It is meant to use the Unix time, which it does return, but the coolness factor here is that is the second line of the returned data you get this... Date: Fri, 10 Oct 2014 00:23:32 GMT You can peel this out of the returned code and set your clock by it. Here is the new code for this... very easy. SERVER$="98.139.25.73" PORTX$="80" Open "Com1:115200, 4096" As #1 FLUSHBUF PRINT #1,"AT+CWMODE=3" PAUSE 100 GETSTRINGLONG PRINT #1,"AT+CIPMUX=0" PAUSE 100 GETSTRINGLONG Print #1,"AT+CIPSTART="+Chr$(34)+"TCP"+Chr$(34)+","+Chr$(34)+SERVE R$+Chr$(34)+","+PORTX$ PRINT "AT+CIPSTART NOW" PAUSE 1000 GETSTRINGLONG Z$="GET /TimeService/V1/getTime?appid=YahooDemo HTTP/1.1"+chr$(13)+chr$(10)+"Host: developer.yahooapis.com"+chr$(13)+chr$(10) OUTPUTX Z$ PAUSE 1000 GETSTRINGLONG END Sub OUTPUTX (OUT$) Print #1,"AT+CIPSEND=0"+Str$(Len(OUT$)+2) Pause 200 Print #1,OUT$ PRINT OUT$ Pause 100 END SUB '**********GETSTRINGLONG************ SUB GETSTRINGLONG PAUSE 200 PRINT "BYTES IN LOC = ";LOC(#1) C$="" DO C$=Input$(1,#1) char = Asc(C$) If char >31 Then Print C$; If char =13 Then Print " " LOOP WHILE LOC(#1)<>0 END SUB SUB FLUSHBUF DO:A$=INPUT$(1,#1):LOOP WHILE LOC(#1) <> 0 END SUB Good luck and let us know if this worked for you!!!! |
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| paceman Guru Joined: 07/10/2011 Location: AustraliaPosts: 1329 |
Anyone know of an Australian timeserver that has a nice ASCII time/date stamp like that, that we could substitute? |
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| viscomjim Guru Joined: 08/01/2014 Location: United StatesPosts: 925 |
Hi paceman, I will GTS and see what I can find. Will keep you posted. edit... THIS may be of interest to you. Didn't dig too deep but will check it tomorrow. Personal use is $0.00 per month for up to 2000 queries. HERE is another one that might work for you. |
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| plasma Guru Joined: 08/04/2012 Location: GermanyPosts: 437 |
Thx a lot ! Well i solved these functions such extern ip, Unix timestamp calculation , get time and date , Md5 hash and other with a little php on my Own server. So i get the time or the extern ip from my hown Network if i send a password to the script. No dyndns or startic ip is in need. Maybe the Admin from TBS can create The same thing for the mmbasic user in down under? |
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| paceman Guru Joined: 07/10/2011 Location: AustraliaPosts: 1329 |
Thanks Jim, I just received my module in the mail today so will be able to give it a go soon. Greg |
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| viscomjim Guru Joined: 08/01/2014 Location: United StatesPosts: 925 |
@paceman, keep us posted on your experience... Very interested! |
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| viscomjim Guru Joined: 08/01/2014 Location: United StatesPosts: 925 |
A bit more progress after a bit of hair loss on the esp8266... I updated the unit to "922" and things are a bit better now. Also I discovered that if you use "transparent mode" by using AT+CIPMODE=1, you don't need to send the data (CIPSEND) and the length of the data, just the data. This simplifies things a little. However, to get out of that mode you have to send +++ to get it back into a mode that will accept AT commands (with some pausing). Kind of like the old hayes modems. Also, if you are in CWMODE=3 and you inquire the ip address using AT+CIFSR, you get your ip address and the ip address of the access point. After this update, you will be at 9600 baud, but you can now adjust the speed using AT+CIOBAUD=9600, supported 9600, 19200, 38400, 57600, 74880, 115200, 230400,460800, 921600. Pretty high data rate now, but limited to 230400 on uMite. To update the firmware, go http://www.electrodragon.com/w/Wi07c#Firmware_Log and go to firmware log. Do not do any of the updates that it shows, including the cloud one. Just go directly to firmware log and download the File:V0.9.2.2 AT FIRMWARE.BIN.ZIP and then download the Firmware uploading tool XTCOM UTIL.ZIP to send the file to the esp8266. Take note of how to wire the module to update the firmware. Try this program out and just put in your zip code to get your weather. The rem'ed out stuff was for debugging. Still working on parsing this stuff so you can display what you want, but not getting too far with this. Any Ideas would be really helpful right now.... SERVER$="23.0.88.120" PORTX$="80" Open "Com1:115200, 4096" As #1 FLUSHBUF INPUT "PLEASE ENTER YOUR ZIP CODE";ZIP$ PRINT #1,"AT+CWMODE=3" PAUSE 100 'GETSTRINGLONG FLUSHBUF PRINT #1,"AT+CIPMUX=0" PAUSE 100 'GETSTRINGLONG FLUSHBUF PRINT #1,"AT+CIPMODE=1" PAUSE 100 'GETSTRINGLONG FLUSHBUF Print #1,"AT+CIPSTART="+Chr$(34)+"TCP"+Chr$(34)+","+Chr$(34)+SERVE R$+Chr$(34)+","+PORTX$ 'PRINT "AT+CIPSTART NOW" PAUSE 500 'GETSTRINGLONG FLUSHBUF PRINT #1,"AT+CIPSEND" PAUSE 400 PRINT #1,"GET /api/2b4e1c4572808d14/conditions/q/"+ZIP$+".json HTTP/1.1"+chr$(13)+chr$(10)+"Host: api.wunderground.com"+chr$(13)+chr$(10) PAUSE 1000 GETSTRINGLONG PRINT #1,"+++"; PAUSE 1200 Print #1,"AT+CIPCLOSE" PAUSE 100 GETSTRINGLONG END '**********GETSTRINGLONG************ SUB GETSTRINGLONG PAUSE 200 'PRINT "BYTES IN LOC = ";LOC(#1) C$="" DO C$=Input$(1,#1) char = Asc(C$) If char >31 Then Print C$; If char =10 Then PRINT " " ENDIF LOOP WHILE LOC(#1)<>0 END SUB SUB FLUSHBUF DO:A$=INPUT$(1,#1):LOOP WHILE LOC(#1) <> 0 END SUB I forgot to add that in the mode described above, you no longer get the +IDP crap and the related pause when you are receiving the data back. This should help simplify the data parsing.... Also, the terminal program that Jeff OldBitCollector was kind enough to write won't work like it used to as I found out. I used teraterm to initially talk to the esp and realize that you have to send the command and then cr+lf to get any response back. I know this is a pain to redo stuff, but I am going to assume that this is the direction these guys are going and I need to keep up with them. Don't be dismayed if you get no response after the update, you just have to add this and it will work. EDIT... for some reason the same space thing happened when copy paste the code... In the 18th line of code, the one with AT+CIPSTART, there is extra space at Print and #1 and also in the word "SERVE R$" should be "SERVER$". EDIT somemore... After update, ATE1 and ATE0 work for echo on and echo off. Also I am now running this module at 230400 baud with NO problem... |
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| plasma Guru Joined: 08/04/2012 Location: GermanyPosts: 437 |
what do you think about a command to find a string in the buffer? i download severall files , but the header size isnt the same because i contain some variables ( time, date) and so on. so i cant cut the header from the data without fiddeling the string and searching for my startstring. the only problem is imho you need a big buffer which contains all data . in this case the string length limit from 255 bytes isnt enough. well i know you can create abbigger buffer and read it with mmbasic commands but this is not much comfortable. another idea is to put an array other the memory from the buffer such like : dim data @ pointer from the channel. |
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| viscomjim Guru Joined: 08/01/2014 Location: United StatesPosts: 925 |
Take a look at the way Geoff reads the rx buffer in his super duper gps clock. I think this is a good starting point by putting info into an array and messing with it after it is captured. I am trying very hard to implement this, but as of yet not having very good luck doing so. However, with perseverance, we will kick this in the ass. I will keep you posted as to my progress, if you could do the same. This does open a few IoT doors for the uMite, so I will do my best. I'm not trying to create a web browser or anything like that, but to be able to communicate with apis and upload and download control information over the web would be extremely cool. Those damn arduinos have been doing this for a long time, now its uMite time damn it! |
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| plasma Guru Joined: 08/04/2012 Location: GermanyPosts: 437 |
last night i trying to load a 64k file from my server . the data are messy sometimes and i dont get all 64kb all the time. sometimes i get <1kb sometime > 5 kb data . iam working on this night and show the code here . also i get my ip after > 5 secs after a reboot and log in , but i can send and receive before it shows me my ip ( At+CIFSR). i set the console to 230400 baud to avoid transmission errors and playing also with the buffersize. iam not updatet the module yet but i will do this to become the same level as you . thx |
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| paceman Guru Joined: 07/10/2011 Location: AustraliaPosts: 1329 |
I hooked mine up and got it running with the Micromite today - using a USB to TTL serial adapter on my Win XP notebook. I'm following OBC's Instructable and apart from a few glitches it seems to be doing the right things. So far the chat window in Tassy Jim's MMEdit seems to be working fine as a terminal too (using OBC's Simple Terminal program) and PINGs are working OK on my network (Billion 7800N router). Also I've just loaded and run the "Simple Webserver" program and managed to get the "Welcome to my Webserver..." message back using Firefox. Haven't set up port-forwarding yet. The current draw doesn't seem as high as others have mentioned. It was pulling around 70mA un-configured but typically 35-50mA now it's set up. No sign of the 250mA that's been mentioned - maybe they de-rated it for Australia! Putting it to bed now ready for another great leap forward tomorrow. Greg |
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| viscomjim Guru Joined: 08/01/2014 Location: United StatesPosts: 925 |
If you guys decide to update your esp8266 modules to the most current firmware, make sure you get OBC's updated terminal program. All firmware updating info is discussed in this thread and also HERE . Same page has OBC's code for the terminal. If you have any question about the updating process, don't hesitate ask, it took me a few go arounds but now I have it down pat. You can save some time by just going right to 922 version. |
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| paceman Guru Joined: 07/10/2011 Location: AustraliaPosts: 1329 |
I'll do that Jim but just getting the initial hurdles jumped first. I've had a fair play with my router settings (via the browser interface) in the past, but AT commands and HTML are totally new to me. Greg |
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| plasma Guru Joined: 08/04/2012 Location: GermanyPosts: 437 |
ive updated to the latest version but cant connect to the esp8266 even with 9600 baud. also i need to warning here if you have a esp-05 u cant update without solderin on it because it has anly the seriall connect pin on board.. @viscomjim ive updated to the firmware you recommended . i use teraterm to connect it with 9600 baud i can press some keys it shows the right string whats all. any idea |
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| plasma Guru Joined: 08/04/2012 Location: GermanyPosts: 437 |
got it , you need to set up CR+LF in the Terminal. now testing.... |
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| paceman Guru Joined: 07/10/2011 Location: AustraliaPosts: 1329 |
Trying to update to v0.9.2.2 using the USB-TTL adapter and my Win XP system,but having trouble with the XTCOM_UTIL program. XTCOM_UTIL's running fine but In Tools/Configure Device it only gives options from COM1 to COM6. My Silicon Chip serial port driver is at COM15 though and when I enter COM15 and the 115,200 baud rate and hit OPEN it returns: "Operation Failed! XTCOM_API_ComInit()gets an error code: 0" TeraTerm talks to it fine on COM15 - any ideas how to get around this? Greg |
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| WhiteWizzard Guru Joined: 05/04/2013 Location: United KingdomPosts: 2944 |
Greg, If you go to control panel (with your USB module plugged in) then select the 'virtual' COM port that windows has assigned it and look for 'Advanced Settings' under Port Settings. You should then see a long list of COM ports on a drop-down (with COM15 selected by default as this is what Windows has assigned it). Simply select a lower COM port number (you may get a warning message but ignore that). I always use COM 3 as Com 1 & Com 2 are used by built-in hardware on my laptop). Selecting any number under 8 should work (the lower the better). It is all to do with the way software/drivers are written. Hope this helps . . . . . |
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| viscomjim Guru Joined: 08/01/2014 Location: United StatesPosts: 925 |
Hi Paceman, I have not run in to this situation before as mine always comes up at com6. I would try the WW method. I hope that works for you. Please keep us posted.... Hi Plasma, I'm glad you found the CR+LF. That drove me nuts for a bit also. Keep us posted on your progress... P.S. if you are using OBC's terminal, don't forget to get the new one, link in earlier post in this thread. |
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| viscomjim Guru Joined: 08/01/2014 Location: United StatesPosts: 925 |
I haven't tried this yet, but for those in Australia, if you change the 18th line of weather program on page 6 of this thread (the one with the GET in it) to... PRINT #1,"GET /api/2b4e1c4572808d14/geolookup/conditions/forcast/q/Austral ia/Sydney.json HTTP/1.1"+chr$(13)+chr$(10)+"Host: api.wunderground.com"+chr$(13)+chr$(10) this should work for you. If it doesn't you can try to get a new ip address that is used in the beginning of the program for wunderground as it might be different over there??? The way I found it in windows was I pinged (cmd, ipconfig, ping) api.wunderground.com and it showed the ip address that I used in the program. On a mac you can use network utility and just type in api.wunderground.com and hit ping. If someone does actually do this, can you let me know if it worked and if you indeed had to acquire a new ip address for them. Thanks!!!!!! EDIT... Get rid of space in the word Australia. Can't seem to edit that for some reason. EDIT2... I tried this when I got home and it works. Just rem out the input line for zip code as it is not used here. 15C, wind NNW at 7mph, Scattered clouds, 59% relative humidity, etc.... yeah! |
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| paceman Guru Joined: 07/10/2011 Location: AustraliaPosts: 1329 |
@WW, Thanks Phil, that did the job immediately. There were a whole string of COM ports there and were listed as "in use" (phantoms from the past no doubt). I just overwrote the COM5, set that up in the VTCOM utility and the upload went like a dream - maybe a minute or perhaps less. @viscomjim, Set up TeraTerm for 9600 and the CRLF change and we're talking to the module again. Interestingly when you do an "AT+GMR" to check the firmware version, it comes back with the same number as the earlier version, i.e. it returns 0018000902 - I would have thought it would end with 922 but then on the ElectroDragon Wi07c page it does say: File:V0.9.2.2. AT Firmware.bin.zip (0018000902 modified 0.922) which is a bit cryptic but ?.... Now to start playing again. Greg |
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