Arduino is an open-source prototyping platform based on easy-to-use hardware and software. Arduino boards are able to read inputs - light on a sensor, a finger on a button, or a Twitter message - and turn it into an output - activating a motor, turning on an LED, publishing something online.
Pushbuttons or switches connect two points in a circuit when you press them. This example turns on the built-in LED on pin 13 when you press the button.
Analog to Digital converter Analog to digital converter is an IC responsible of converting analog signal continuous in amplitude and time to digital signals (binary numbers), but under certain conditions, for a PC or an ECU like a microcontroller or a PLC can understand in order to be processed and stored by these systems (the PC, ECU or PLC).
The pulse width modulation (PWM) of an output pin to dim or brighten an LED and print the values on the serial monitor of the Arduino Software (IDE).
Called "Serial” because data is broken down into bits, each sent one after the other down a single wire.
Bluetooth is a very popular mode of communication. Due to its availability, low cost and ease of use, Bluetooth finds its application in a large no. of fields. It is also a favorite choice in embedded systems.
Latest Bluetooth modules are based on BLE (Bluetooth Low Energy) subset of Bluetooth 4.0.However, these are still a little costly and not widely developed yet.
We have a limit of how much we can use it.These Software Serial ports can’t match up-to the speeds of hardware serial ports.
We define these software serial ports through SoftwareSerial library of Arduino. This library came bundled with Arduino IDE but we have to tell the IDE that we are using this library.
LabVIEW (Laboratory Virtual Instrument Engineering Workbench) is a graphical
programming environment which has become prevalent throughout research
labs, academia and industry.
It is a powerful and versatile analysis and instrumentation software
system for measurement and automation. Its graphical programming language
called G programming is performed using a graphical block diagram that
compiles into machine code and eliminates a lot of the syntactical details.
Loops:Labview has same facility as any other programming language to use for
loop,while loop etc..
In the same way, just drag the while loop to your block panel which
available under structure section in function palette.
Comparison operators:There are all kind of operators like greater than, less than, equal to
etc. These operators output in true or false. So to see the result just
drag a Boolean led in front panel and attach the output of operator to
the block formed by led in block panel.
Select Function: Returns the value wired to the t input or f input, depending on the value
of s.
If s is TRUE, this function returns the value wired to t . If s is
FALSE, this function returns the value wired to f. It’s is like conditional
operator in C language. Or you can say like if Condition.
Formula Node:This is basically like your C language block in which you can write your
C Code but not too complex one. This is used only in minor ways.
You can create as many inputs variables and output variable by right clicking
on formulae node.
Waveform Chart:The waveform chart is a special type of numeric indicator that displays
one or more plots of data typically acquired at a constant rate.
You can drag a chart from Front Panel. Go to Graph->Waveform Chart.
There are three types in which you can update your chart.
Waveform Graph:The waveform graph displays one or more plots of evenly sampled measurements. The waveform graph plots only single-valued functions, as in y = f(x), with points evenly distributed along the x-axis, such as acquired time-varying waveforms.
Hardware with LabVIEW:
Softwares needed:
1. LabVIEW 2013
2. VIPM- LIFA and Makerhub LINX
3. VISA
4. Arduino IDE
It is really a simple task of glowing an LED in arduino from LabVIEW.
We will use LIFA in this case but it is no more different than using
LINX.
LIFA is deprecated and is no more updated but i still prefer it because
of its more features.
Led Blinking using LINX:
The steps are same as of LIFA. Only the blocks are needed to be changed.
Steps are:
Upload the LINX Frimware in Arduino by going to TOOLS->Makerhub->LINX->LINX
Firmware Wizard. Choose your device, connection type and COM PORT.
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