Reading data from multiple sensors(same type) without copying the same VI in one VI for 4 times.

[jeet4230]

hello everyone,

Im reading the 4 same type of sensors which is attached to Arduino. I can able to read one sensor using the my lab-view VI. now want read other three with same VI..can you give me some idea?? 

[PalanivelThiruvenkadam]

First suggestion would be to attach the Source code for reference.

If all your sensors are connected to same Arduino with different I/O's / Channels with you can modify your code to read multiple channels (Multiple Sensors) using same VI.

If you are connecting multiple Arduino for multiple sensors then you can go Clone VI

[crossrulz]

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@jeet4230 wrote:

Im reading the 4 same type of sensors which is attached to Arduino. I can able to read one sensor using the my lab-view VI. now want read other three with same VI..can you give me some idea?? 

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You could use a FOR loop to iterate through all of the readings you want.

[jeet4230]

Can you explain me bit in detail? how can i use the for loop? because i going to attach 4 different waveform chart to the 4 different sensor values.

thank you in advance.

[PalanivelThiruvenkadam]

Share the code you developed which works fine for 1 sensor.

[jeet4230]

hello,

Im attaching the the vi. so this is for 1 sensor. i want to do it for multiple sensors. 

thank you

[PalanivelThiruvenkadam]

Please down convert to LV17 version and share.

[jeet4230]

done and attached. 

[GerdW]

Hi jeet,

you are sending 14 command strings to your Arduino, just to read one specific sensor?

How do you switch the AI channel on your Arduino? Which command do you need to change to read a different channel/sensor?

In the end it boils down to "send the same commands again, but change the one command selecting the channel/sensor"…

Btw. do you really need to wait 200ms between each command?

[psuedonym]

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@GerdW wrote:

Hi jeet,

you are sending 14 command strings to your Arduino, just to read one specific sensor?

How do you switch the AI channel on your Arduino? Which command do you need to change to read a different channel/sensor?

In the end it boils down to "send the same commands again, but change the one command selecting the channel/sensor"…

Btw. do you really need to wait 200ms between each command?

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If he had written his Arduino code properly, he could send back readings from all 4 sensors with 1 response.