datav | Beautiful and interactive data visualization platform | Dashboard library
kandi X-RAY | datav Summary
kandi X-RAY | datav Summary
The open-source platform for data monitoring and observability.
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QUESTION
Project largely working. Have a 125Khz RFID module on an Arduino Uno, with SD card module and and RTC, all working nicely and passing data via PLX-DAQ to Excel and storing data to SD card.
I need a way of working out when the Uno is connected via PLX-DAQ to USB/serial, or when the Uno is just on battery.
So I thought to set a particular cell on Excel with the PLX-DAQ form macro in VBA to 1 (when connected) or 0 (disconnected) then read that in the Arduino code to determine whether to pass data via serial to excel or pull stored data off SD card.
The cell J4 toggles 0 or 1 according to whether disconnected / connected.
I then use the GET function of PLX-DAQ to read a cell from the Arduino sketch.
To upload the sketch I have to disconnect the connection between the RFID Tx and Arduino Rx or I get an error, which is normal, and if I run the sketch with that wire disconnected GET works fine.
...ANSWER
Answered 2021-Jun-12 at 01:54I assume you leave the arduino TX wire connected to the PC-RX. Thats why your PLX-DAQ still has the input. And as you suspect nothing will be going back.
First I thought, since nothing will come back, so your code will be stuck on
QUESTION
Type declaration:
...ANSWER
Answered 2021-Apr-22 at 12:56You do not need to declare a nested table for the sub-type (and can use forward declaration of the types to get rid of all of your ALTER
statements):
QUESTION
I was trying to understand how linked-list works. I wrote a python code to create a linked-list and access its nodes. I have used a class named 'Node' to create a 'Node' object, whereas, the class 'SLinkedList' would create an object in which I will store all nodes. Here is the python code:
...ANSWER
Answered 2021-Apr-01 at 08:16It may help to draw what is happening:
list1 = SLinkedList() # new linked list
This creates a linked list instance, which has no nodes yet:
QUESTION
So I am trying to make a dynamic system where a button changes when you click on another button. For instance, when you click on the button: "12+4", different buttons will appear at another div. I use an append method for that. But when you click on one of the "patroon" buttons, it will not execute the $(".tile").on('click', function)
. That is because that code is already executed before the ajax call. My code is below:
ANSWER
Answered 2021-Mar-23 at 09:26Jquery doesn't know the button's which you appended dynamically, for that your code should be like below, and which will rescan the document to find the element with the class name
QUESTION
Trying to implement table filter with And/Or logical operations. Now the table is filtering based on individual datepicker and select field. If I select AND the table should show both datepicker and select field results, if I select OR either of one should display. Is it possible to achieve it in jquery. Any help is appreciated.
...ANSWER
Answered 2021-Feb-24 at 17:04You can use check if the logic
select value is 1
or 2
depending on this use &&
or ||
operator and show required trs .
Demo code :
QUESTION
Hello I am very new to react.js.
I would like to create function in child component and use it in parent component.
In parent component,
...ANSWER
Answered 2021-Feb-28 at 16:10You should are passing in dataVal
as a named prop, but are forgetting to destructure it on the ListReport
like so const ListReport = ({dataVal)
QUESTION
I'm trying to implement a table filter by date range using one input bound to a datepicker. I've gone through few similar questions but none of those have the answer which matched my example.
So far I tried the below code but I didn't understand how to bind the datepicker and table together to proceed further. Any help is appreciated.
...ANSWER
Answered 2021-Feb-23 at 12:29A much simpler approach would be to look for the date in table cells (loop through table rows and check date value) and showing/hiding table row. you can add/remove css classes to/from particular rows based on your date criteria. css classes will handle showing/hiding thing. The snippet below should give you the idea. (try with date 5/10/19
, as other dates are having date format issues that you need to handle).
QUESTION
I have the following code to populate a drop down using getmdl-select
...ANSWER
Answered 2021-Jan-30 at 06:16It looks like you want to use the jQuery find method, but you are not using a jQuery selector. Try replacing:
QUESTION
I am getting undefined returned value when I press button.
...ANSWER
Answered 2021-Jan-25 at 13:37You are not returning anything from LockUnlockAccount
You need to do
QUESTION
I have very basic file upload system using PHP and Dropzone. Upload PHP file is like below
...ANSWER
Answered 2020-Dec-10 at 06:36Make sure your file is being received on both server. Look like on the server with error your file is not uploading this is why you are getting empty response
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