I am using GPS module for my application. I want only the RMC data. So what am I supposed to do in my code to get only this data, i.e all the other formats like GGA,GSA,VTG should be disabled.
Please Help.
Thanks
You cannot disable the other messages, and there is no reason to do so. Some GPS units support commands to enable/disable messages, but it is anything but standard.
Simply use a switch statement in your code on the sentence identifying field, and have a case block for GPRMC.
Related
In Order use a PLC as a Client (formerly “Slave”), one has to configure the PDO channels, since the default values of the manufacturer are often not suitable. In my case, I need the PDOs so send INT valued instead of the default UNSIGNED8 (see. Picture).
Therefore my question: What kind of workflow would you recommend, to map the CANopen Client PDO channels?
I found the following workflow suitable, however I appreciate any improvements and recommendations from your side!
Start by locating the .eds file from the manufacturer. The image show this in the B&R Automation Studio Programming Environment
Open the file in a eds. Editor. I found the free Vector CANEds Editor very useful. Delete all RxPODs and RxPDO mappings that you don’t need.
Assign the needed Data Type (e.g. INTEGER16) and Channel Name (“1 Byte In (1)”).
Add the necessary PDOs and PDO mapping from the database. (This might actually be a bug, but if you just edit the PDOs without deleting and recreating them, I always receive error messages)
Map the Date to the Channels
Don't forget to write the number of channels in the first entry (in this image: 1601sub0)
Check the eds file for Errors (press F5) and copy&paste the eds file to the original location point 1.)
Add the PLC Client device in Automation Studio and you should see the correct mappings.
(PS: I couldn't make the images smaller ... any recommendations about formating this question are welcome!)
I have written a code which performs a connection to a NTRIP caster and receives data in RTCM3 format.
I have been able to decode these messages and I can distinguish them in base to their code such as (1006, 1008, 1013, etc..).
But I don't know which of this data I have to use to correct my GPS position and how to perform this correction.
Could you give me some hints or references?
Always mentioned which module you're using, what are the hardware interfaces.
I don't think you need to decode the data coming from the NTRIP server. Most of the time the RTK module does that on his own, all you have to do is redirect the data coming from the NTRIP server to the RTK module (without changing anything).
I'd like to remove the line breaks from the telegram text message using MQL4 coding. I'd like to convert the text to a format that MT4 can use to place a trade.
The issue is that the telegram bot is reading the chat and the text is converted to a one-liner with the \n separator. I need to split the different parts of the message into separate Int/Str/Double, etc. so that I can use them to place the trade using MQL4 code.
The message format is as follows:
"text":"XRPUSD\nBUYLIMIT\n0.15010\nSL 0.18000\nTP 0.14000"
This message comes in as msg.message_text but I don't see the actual message unless I use Postman. I just know the format from a JSON converter library.
Again, I need to split the different parts of the message into separate Int/Str/Double, etc, so that I can use them to place the trade using MQL4 code.
Hopefully, I am asking and presenting the data in a manner that makes sense. Please let me know.
Thanks
I think you can use StringReplace method
Like this
string text="XRPUSD\nBUYLIMIT\n0.15010\nSL 0.18000\nTP 0.14000";
int replaced=StringReplace(text,"\n","/");
Print("Replaced: ", replaced,". Result=",text);
I am trying to set up a potentiostat Xtralien by Ossila with LabView.
The way the instrument works in a string-in, string-out, so far so good.
The built-in code examples that are provided by the manufacturer contain firstly a string-in, string-out LabView program and secondly a preliminary console to record an I-V sweep (https://www.ossila.com/pages/basic-xtralien-commands-in-labview, https://www.ossila.com/pages/xtralien-x100-command-list). In the string interface, I can enter 'CLOI hello' and the device responds 'hello world', so far so good. If I proceed any further and send i.e. a 'smu1 measurev' command connecting to some photodiode, I just receive a near-zero value back, setting 'smu1 set voltage 0.5' or similar does not lead to an output voltage either. Running the sweep program over said photodiode gives noise in the µA range.
EDIT: All involved hardware components were double-checked.
Where am I doing something wrong? Is the error arising from communication errors or...? Has someone experienced this so far?
Received the answer from the Ossila support. The Xtralien X200 drivers were recently updated (http://files.ossila.com/source-measure-unit/Ossila-X200-SMU-Instr.zip), and you need to switch on each SMU channel sperately. This was implemented in a subVI in the Instrumentation -> X200.
Hope I helped all who get a similar problem in the future!
I have chipKit uC32 (PIC32MX340F512H) ,chipkit BasicIOShield and PICkit3
programmer all from the Microchip.
I'm using MPLABX IDE.
Since I'm very new to this so I didn't know where to start I have searched and look at the web and find only tutorial which using MPIDE which I'm not allowed to use in my project.
I have read the Reference manual and Data sheet for and make test project but any way the uC32 Board refuse to recognize the BasicIOShield and I was unable to connect this two together.
Any tips and link would be great. Thanks in advance.
In the Basic IO shield Reference manual stated that you should follow some step in order to make the ChipKit to talk to the basic IO shield.
Power on sequence
Apply power to VDD.
Send Display Off command.
Initialize display to desired operating mode.
Clear screen.
Apply power to VBAT.
Delay 100ms.
Send Display On command.
Power off sequence
Send Display Off command.
Power off VBAT.
Delay 100ms.
Power off VDD.
The shield is using SPI2. The following registers are used
RF4, RF5, RF6 and RG9
Also you must change the jumper in the uC32 from LED4 to JP4 and JP8.
in the Appendix B of the reference manual of the basic IO shield is an example code which is useful.