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is it possible to connect SRF05 module (ultrasonic) to stm32f030k6t6 and work with 3.3V?

jhasa.1
Associate II

‎2022-02-20 07:39 AM

 
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5 REPLIES 5
MM..1
Chief II

‎2022-02-20 10:50 AM

Yes you need connect to 5V tolerant pins

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jhasa.1
Associate II
In response to MM..1

‎2022-02-20 11:11 AM

Can I connect Vcc to 3.3V and work with it?

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MM..1
Chief II
In response to jhasa.1

‎2022-02-20 12:07 PM

This info you need ask SRF05 author...

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Andrew Neil
Evangelist

‎2022-02-21 01:45 AM

You could've started by summarising the suggestions you've had already:

https://www.avrfreaks.net/forum/working-srf05-33v

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Andrew Neil
Evangelist
In response to MM..1

‎2022-02-21 01:56 AM

@MM..1​ "you need connect to 5V tolerant pins"

Indeed - for signals from the device to the STM32.

If any signals need to go from the STM32 to the device (eg, the trigger?), you will have to check the module's documentation to see if the 3V3 level is going to be sufficient...

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