LMT01-Q1: LMT01-1 VN pin connection to ground

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Hi Ben,

Thank you for your response.
Can you tell me what is the advantages/disadvantages in connecting VN to ground compared to VN through resistor.

Hi Ben,

Is this configuration is OK.

Please see the schematics below.

Hi Ben,

Are you there???

Can you also tell us the pulse counting code for  LMT01QDQXtQ1 for 10-15 sensors simultaneously.

Hello Arunava,

I apologize; I missed your last post. I will respond to your questions later today.  

Hello Arunava,
yes, the configuration looks correct. If you want to connect multiple sensors, it will be necessary to connect each collector to a separate GPIO on the MCU.

Hi Ben,

Thank you this information.

I am using 16 LMT01QDQXtQ1 . For counting each of these pulses requires 16 individual timers.

Where number of timers are limited. Is there any way to count multiple LMT01QDQXtQ1 using one timer.

If not we have to look for sensors with analog output.

Please advice.

Regards

Arunava

Hello Arunava,
you may mux the collector side of your PNP with an external mux if you want to connect multiple LMT01 to a single GPIO on your MCU, as long as this scheme still meets your sample rate requirements. .

Hi Ben,

We have enough GPIO.

My question was how to count multiple(2-3) LMT01 using one timer inside microcontroller.

Regards

Arunava