Connecting T300 to a microcontroller

Hi,
I am trying to connect T300 mobile to a microcontroller(pic).
I connected the rx pin of the phone to the mc's tx pin.
Then I connected the tx pin of the phone to the computer serial port
via MAX 232.
Then I programed the microcontroller to send characters to the tx pin(using the uart module).
I sent characters "A" then "T" to the phone.
Then I monitored the tx pin of the phone using hyper terminal. But nothing appearing there.
Then I connected the serial port of the pc directly to the phone via MAX232 and sent AT by hyperterminal. but no response from the phone.
Please tell me how to get response from the phone.
thankyou!

Hi,
This isn't something our team here is able to answer and I don't think our users are likely to have an answer either.
I'd recommend you post this question on a relevant Google group or other developer forum and hopefully like-minded users there can assist!

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If your PC is connected to one of those micro controllers using a serial
line (RS/232?), you might try and have a look at the rxtx package.
Look here.
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Having trouble connecting the ( even running ) the example to read serial data from the arduino toolkit.
It seems that my program cannot see or find the arduino resource. It throws up an 'Error 5002' which basically tells me that it's something with the serial port.
So to check I wrote a simple 'Read Serial' after 'Configure Serial' on the same COM port that I mentioned in the above example & am able to display a buffer string ( without the arduino toolkit ).
What could be the reason? In the example below, I only included the VISA serial read part since I was getting th error. I would obviously not use them concurrently.
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Hi vaishakh.chava,
You're completely correct in saying that LabVIEW is unable to establish a connection to the Arduino microcontroller. There are quite a few reasons as to why this can occur, so it's important to make sure of the following:
Make sure that the correct firmware is flashed to the Arduino. This will configure the microcontroller to understand the communication protocol implemented by the LabVIEW VISA drivers to control the peripheral interface ports. The correct firmware can be found in<LabVIEW>\vi.lib\LabVIEW Interface for Arduino\Firmware\LVIFA_Base
Make sure you have selected the correct COM port for the Init.vi or that the VI automatically locates the Arduino (this happens when no wire is connected to the VISA Resource input of theIniti.viand only works for Arduinos that areconnected to the PC via USB); otherwise the wrong USB port be communicating with.
If using an Arduino connected via USB make sure that the Arduino is listed as under Ports in Windows device manager. If it is not listed you may need to install the Arduino drivers. If the device is not recognised by your Operating System, it will not be associated with your computer due to missing driver calls; this means your Operating System would be missing the means by which to communicate with the device on the most basic level.
If using a wireless connection (Xbee, BlueSMIRF) to LabVIEW try using a wired connection (USB , Serial). Poor wireless signal strength can cause the Arduino to be unreachable by LabVIEW.
Make sure that the baud rate specified as an input to Init.VImatches the baud rate specified in the firmware by the DEFAULTBOARDRATE definition at the beginning of the code. If the wrong board rate is specified, the communication between the devices will always be out of sync and will data will not be correctly 'understood' between VISA and the Arduino.
#define DEFAULTBAUDRATE X (where X is the baud rate).
Please let me know how you get on with these steps!
Alex Thomas, University of Manchester School of EEE LabVIEW Ambassador (CLAD)

Using SWING to create a GUI for PC to Microcontroller connection...

Hello,
I am currently undertaking a project task regarding the connection of a microcontroller (uC) to a host pc. Our main task now is to create a GUI that would display information stored on the uC.
I was just wondering if SWING will be able to accomodate the following:
1) The uC will be hooked up either through ETHERNET LAN cable or a USB WIFI adapter. The host pc running Java will have a GUI that would be able to locate this IP address of the uC and connect to it.
2) We have verified that a telnet connection from a pc to the uC works. We could successfully, get the necessary files needed from the uC.
3) The contents of the files we want are just a bunch of serial numbers. We have uC run a code and store the output into a file. This file would then be transfered to the host pc.
4) In the end, we want to send this data wirelessly, instead of using the LAN CABLE.
My question now is would SWING be a good option in implementing this GUI. I have taken a JAVA course a 2 yeasr ago so I am still familiar with some JAVA basics but I have not delved into the networking aspects of JAVA, which I do know it has.
I await your kind responses,
thanks.

Hi,
By ?C do you mean ?C/OS-II?
I don't know much about ?C/OS-II, I believe that you could
make a program for that processor that would listen for connections
on some ethernet port. Then your java program need to connect to that port
and fetch the data.
At the end of this article is a bit of info about sockets in ?C/OS-II.
http://www.hardware.dibe.unige.it/Software/DynamicC/DynCUsersManual/14ucos.htm
As pointed earlier, the GUI isn't your biggest problem.
kari-matti

How to read and display a signal from my PIC Microcontroller onto Labview

Hi,
I am doing a project on a Pulse Oximeter and i am trying to read and display the signal from my PIC Microcontroller on Labview? How do i go about doing it? I am using the PIC16F877 and also making use of the USART?
How do i implement and initialise the USART in PIC16? What are the steps to be taken, please guide me through the process? The link provides information regarding the USART connection, initialisting and stuff? Is it correct to use these codes in my program?Link: http://ww1.microchip.com/downloads/en/AppNotes/00774a.pdf
Also, i am using the RS232 serial interface to connect to the PC? The connector i am using is the DB9 Connector. Which template and VI can i use? Am i supposed to use the NI-DAQmx and VISA? Also, for my USART connection, i am using the MAX232 Driver which is applicable for my application as i am working with +5V. So far, i have been reading and trying out on Labview and the steps i have taken are:
1) Open a New VI and used the Instrument I/O(Read & Display) template?
2) How do i configure the Instrument I/O Assistant Express VI to read the info from my device connected to COM1?
3) I was reading the Labview Manual, 'Getting Started with Labview' and i was following the steps under Page 55, Communicating with an Instrument. Am i on the right track?
4) How do i check and make sure that the port settings of the I/O Assistant and my PIC Micro Match
Please help me out and guide me through the process. I am student at a polytechnic and i am very new to Labview and the software is used as a development tool for the project. I have a deadline to meet and i hope i can get a response as fast as possible. Your help will be kindly and greatly appreciated. I hope to hear from you guys soon.You can e-mail me all your answers at [email protected]
Thank You
Best regards,
Ashwin
Ashwin Kumar Mansukhani
Attachments:
Getting Started with Labview.pdf ‏901 KB

Hi Ashwin,
I am not familiar with the PIC Microcontrollers, but I am assuming you mean that you have the microcontroller sending out serial data that you want to read on another computer with LabVIEW. Please let me know if this is incorrect.
What type of data is coming out of the serial port? Is it ASCII, or binary? The reason I ask this is that the serial communication in LabVIEW is done through a protocol called VISA, which uses ASCII data to send and receive. You can later convert this data into whatever form you need, but this is what it is designed to read and write.
You can check the settings such as baud rate and data bits in a configuration utility called Measurement and Automation Explorer, or MAX. When you open up the MAX interface, you can expand the Devices and Interfaces entry on the left, and then expand the Ports entry to see your serial port. When you highlight this port, select the Port Settings tab at the bottom of the window, and you can see what the current settings are, and change them if you need to. You can also set these parameters in LabVIEW using the VISA Configure Serial Port VI.
You can also test communication in MAX by right clicking on the correct port and choosing Open VISA Session. Then choose the Basic I/O light blue tab, and then go to the Read tab. When you click execute, it should read in what is coming from the serial port. This will allow you to verify that the correct information is coming in before even trying to acquire the data in the LabVIEW environment.
In LabVIEW, the best resource to use the Basic Serial Write and Read example program that ships with LabVIEW. By examining the block diagram of this program, you will be able to see the basic programming flow of serial communication in LabVIEW.
I hope this information was helpful! Please let us know if there's anything else we can help with.
john
Applications Engineer

How can I collect and record data in LabVIEW from Sensirion Temperature/Humidity Sensor connected to myRIO?

The product documentation of the sensor and the datasheet is attached. Also Digilent MXP Breadboard's image is attached.
I've connected the sensor to myRIO using the starter kit's MXP breadboard: http://www.digilentinc.com/Products/Detail.cfm?NavPath=2,842,1216&Prod=MXP-BB
The output of the sensor is in digital. My initial goal is to get digital output in form of 8 or 12 or 14 bits and then convert them to decimal numbers and record them.
Pin 1 of sensor is Data, which is connected to myRIO's connector A, DIO1 pin 13.
Pin 3 of sensor is Clock, which is connected to myRIO's connector B DIO5/SPI.CLK pin 21. According to the datasheet of the sensor, if VDD < 4.5V then Clock should be set to 1MHz.
Pin 4 of sensor is Ground, which is connected to Digilent MXP Breadboard GND pin.
Pin 8 of sensor is VDD, which is connected to Digilent MXP Breadboard +3.3V pin. Supply voltage range is 2.4-5.5V and recommended voltage is 3.3V.
I need to be able to send the following commands to the sensor from LabVIEW.
Measure temperature: 00000011
Measure relative humidity: 00000101
Then, myRIO has to wait for maximum 20 milliseconds (ms) for 8-bit measurement, 80 ms for 12-bit measurement, and 320 ms for 14-bit measurement.
Two bytes of measurement data will then be transmitted. myRIO as microcontroller must acknowledge each byte by pulling the DATA line (pin 13) low. All values are Most Significant Bit (MSB) first. Note that for 8-bit result, the first byte is not used. Finally, myRIO has to terminate the communication after the measurement data Least Significant Bit (LSB) has been received by keeping ACK bit, which is the LSB bit, as high.
Attachments:
Digilent MXP Breadboard.jpg ‏96 KB
Sensirion-Temerature-Humidity-Sensor-Documentation.pdf ‏136 KB
Temperature-Humidity-Manufacturer-Datasheet.pdf ‏323 KB

Have you searched the forum?
http://forums.ni.com/t5/LabVIEW/Sensirion-sht7x-labview/m-p/350958/highlight/true#M179022
Greetings from Germany
Henrik
LV since v3.1
“ground” is a convenient fantasy
'˙˙˙˙uıɐƃɐ lɐıp puɐ °06 ǝuoɥd ɹnoʎ uɹnʇ ǝsɐǝld 'ʎɹɐuıƃɐɯı sı pǝlɐıp ǝʌɐɥ noʎ ɹǝqɯnu ǝɥʇ'

Interfacing between labview and microcontroller using rs 232

hi my task is to generate a wavefrom of certain frequency and certain duty cycle in labview and feed it to pic18f452 microcontroller and the o/p of microcontroller when connected to CRO should display the same frequency and duty cycle which was fed from labview.
for that when i am sending decimal data from labview microcontrolle is receiving ascii data for eg 62(decimal) gives 36 and 32 respectively in microcontroller registers and when i use type cast function and convert the decimal data into ascii data and then sending it to uc it gives hex o/p so i am confused that how to solve this problem
pls guide me
thanks
satish

Double post

Connecting LabVIEW to hardware sensors through myRIO

Hi,
I am an electrical engineering student in the senior year and my senior project is about monitoring and controlling the critical equipment in the industrials. the project contains sensors ( tempreture, missing phasing, vibration ) to control motors and transformers and i will biuld those sensors with my team. i want to design a control panel for those sensor in the LabVIEW and i should use myRIO as microcontroller to communicate between the sensors and the LabVIEW for recieving the signals from the sensors and send it to the LabVIEW to be shown in the control panel and then to have an action to cut the power for example.
my question is,
how to use myRIO and connect it to the LabVIEW and the sensors? what should i do? what should i have? for time being i don't have any information about this.. please provide me with all information that i may need.
can you help me brothers & sistors ..
Engineer34

Hi Engineer,
the project contains sensors ( tempreture, missing phasing, vibration ) to control motors and transformers
Sounds like some power is needed to be controlled here. Don't forget safety measures…
How to connect the hardware sensors to myRIO board?
That depends on those sensors. You need to provide more information…
that is too much
It's your final year before becoming an engineer and you claim "too much information I need to read/watch"? What kind of engineer to you plan to be?
all totrials there talking about the realtion between myRIO and LabVIEW
Because that's the main part of the work: reading values from your hardware, analyzing it and calculation output signals to fulfill your control task…
And also because LabVIEW is the IDE to create any programs running on those myRIOs…
Best regards,
GerdW
CLAD, using 2009SP1 + LV2011SP1 + LV2014SP1 on WinXP+Win7+cRIO
Kudos are welcome

Enter code to connect to bluetooth device

Using gnome trying to connect to my bluesmirf modem. When it finds the device it asks me to enter a code of 6 digits on my bluetooth modem which of course is impossible. How can I disable that function? I´m playing with serial communication and a Arduino Uno microcontroller. I can connect to it from my Android phone with an app called Amarino over bluetooth. It does not need a security code to accept connections.

Hi,
The default pairing code is 000000
If needed, it can also be reset as following:
http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&dlc=en&docname=c02643374&lc=en&product=4231408&tmp...
Say thanks by clicking the Kudos thumb up in the post.
If my post resolve your problem please mark it as an Accepted Solution

FTP connection looses connection if it exceeds 90 seconds.

FTP connection dropped after 90 seconds. I believe the problem is in a firewall but cannot get much help from that group. Is there somewhere else that controls the timeout for FTP that I am missing? No timeout is set in /etc/ftpd/ftpaccess. I did change /etc/inetd.conf to use the -t300 just to make sure on my end (ftp stream tcp nowait root /usr/sbin/in.ftpd in.ftpd -a -t300), and did the kill -HUP. The connection was retried and the transfer completed the second time, but it took less than 90sec. This transfer takes place every day but occasionally failes it it exceeds the 90 seconds. Nothing is showing up in the /var/adm/messages log.
/var/log/ftpd.log
Jun 26 02:30:00 n2apw211 ftpd[21921]: [ID 165209 daemon.info] USER *
Jun 26 02:30:00 n2apw211 ftpd[21921]: [ID 125383 daemon.info] PASS *
Jun 26 02:30:01 n2apw211 ftpd[21921]: [ID 307055 daemon.info] TYPE Image
Jun 26 02:30:01 n2apw211 ftpd[21921]: [ID 201503 daemon.info] CWD /logs/dtsXfer/rsa
Jun 26 02:30:01 n2apw211 ftpd[21921]: [ID 307055 daemon.info] TYPE Image
Jun 26 02:30:01 n2apw211 ftpd[21921]: [ID 313182 daemon.info] PORT
Jun 26 02:30:01 n2apw211 ftpd[21921]: [ID 307055 daemon.info] TYPE ASCII
Jun 26 02:30:01 n2apw211 ftpd[21921]: [ID 483773 daemon.info] NLST 20*
Jun 26 02:30:01 n2apw211 ftpd[21921]: [ID 307055 daemon.info] TYPE Image
Jun 26 02:30:01 n2apw211 ftpd[21921]: [ID 313182 daemon.info] PORT
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Jun 26 02:31:32 n2apw211 ftpd[21921]: [ID 434894 daemon.info] lost connection to eis*******
Jun 26 02:36:37 n2apw211 ftpd[23610]: [ID 165209 daemon.info] USER *
Jun 26 02:36:37 n2apw211 ftpd[23610]: [ID 125383 daemon.info] PASS *
Jun 26 02:36:37 n2apw211 ftpd[23610]: [ID 307055 daemon.info] TYPE Image
Jun 26 02:36:37 n2apw211 ftpd[23610]: [ID 201503 daemon.info] CWD /logs/dtsXfer/rsa
Jun 26 02:36:37 n2apw211 ftpd[23610]: [ID 307055 daemon.info] TYPE Image
Jun 26 02:36:37 n2apw211 ftpd[23610]: [ID 313182 daemon.info] PORT
Jun 26 02:36:37 n2apw211 ftpd[23610]: [ID 307055 daemon.info] TYPE ASCII
Jun 26 02:36:37 n2apw211 ftpd[23610]: [ID 483773 daemon.info] NLST 20*
Jun 26 02:36:37 n2apw211 ftpd[23610]: [ID 307055 daemon.info] TYPE Image
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I have to think you are hitting some time out during your xmit...
i will need more info... Not exactly sure where to start so i will ask this.
is this during a batch process that you xmit, and is ot via some script or secondary application???
do you have the same issue when you xmit by hand the same files outside of any application....?
if the ftp process by hand works... modify this script and see if it works...
---- vi notarealscript ------
ftp -inv <host> << EOF
user memyselfandI pass somethingNotReal
prompt
bin
hash
cd <some directory>
put <some file name... mput works just fine>
bye
EOF
save exec. let me know if that works.

PC SERAIL INTERFACE FOR IV CURVE TRECER APPLICATION WITH MICROCONTROLLER

DEAR
I AM TRYING TO BUILD IV CURVE TARACING APPLICATION USING MICROCONTROLLER CONNECTED WITH PC SERAIL PORT I HAVE STUDIED BASIC PC SERAIL PORT INTERFACING BUT HAVE NO IDEA ABOUT HOW TO DISPLAY AND LOG THESE DATA ON GRAPH AND SAVE ON A FILE ON SPECIFIED FILE PATH ON PC AND HOW TO EXPORT THESE GRAPH TO BIT MAP OR ANY OTHER PICTURE FILE FORMAT AND WICH TYPE OF FILE FORMAT WOULD BE USED TO SEND TO PC FROM MICROCONTROLLER TO DATA DISPLAY

First of all, please stop SHOUTING.
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StampSerial.llb ‏63 KB
LabVIEWIO Notepad.txt ‏3 KB

Hi,
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Search the labview examples for ways to code your application.
Good luck,
Michael

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Hi
I am developing a project in which i want to connect to internet and send data.I have got a modem .I do not have PC at the scene of project.So i want to use a microcontroller to do the job.As you know micro like 8051,AVR,PIC can not do the job well.I mean programming them to do the TCP?Ip and Http is difficult.I am looking for A micro which can be programmed by j2me using a KVM.
I would be pleased if anybody could help me on a special brand of a micro and some guide to do the job.
BRs
Saeed

I would check your cable supports HDCP first. It is the likely cause and the cheapest to solve it it is the case!
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Help me about communicating PIC microcontroller with Labview

Hi everybody!!!!!!!!
I have a few issues about data acquisition in Labview,so i need your instruction.
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   P/Sorry,my English is not good,expecting your sympathy!
   If it is impossible,you could send me an instruction or the same examples in detail,my mail:[email protected]
THANK YOU VERY MUCH!!!!!!!!

It would be best if you were to re-post this to the LabVIEW forum.
Regards
Ray Farmer
Regards
Ray Farmer

LabView Bluetooth connection PDA to Mitsumi BT

Hi
I'm having a problem connecting to my Mitsumi BT,
http://www.mitsumi.co.jp/Catalog/hifreq/commun/wml/c46/text01e.pdf
I'm doing my master thesis and developing a 2-channel ECG that I'm hoping to connect to A Palm Tungsten m550.
I'm having no problem detecting and connect to it using the palm built-in function.
But I'm hoping to develop a LV project so that I can have a grafical presentaion as well as alarm funtion for my presention.
At the moment my LV application doesn't react to my ECG and my ECG is ready to connect.
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I should mention that I'm more familiar with LabWindows...
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LabView 8.0 PDA
Palm Tungsten m550

Jochen,
thanks for your fast reply!
I looked at the link you posted but unfortunately this doesn't help me for solving the problem.
The program we use for the connection on the side of the microcontroller is written in C++ and we can see which HCI-Events the controller receives from the bluetooth module. The bluetooth module uses ACL-packets and the DM1 protocol.
We had the thought that we made a mistake in sending the wrong Events/ Messages to the Labview application and that it is waiting for something else to establish a connection.
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Regards,
Thomas

Connecting T300 to a microcontroller

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