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External Voltage Reference for Analog Read

mejrissi
Associate II
Posted on April 02, 2014 at 12:32

Hey everyone. I am using a STM32F4 - Discovery board to read an analog value from a pressure sensor to convert it into depth. My problem is that the sensor that I need works with 0-5V and my STM32F4 works only with 3.3V. Is there any way to make the analog read module's reference an external 5V that I provide?

#adc---external-voltage
2 REPLIES 2
Nickname14663_O
Associate II
Posted on April 02, 2014 at 17:22

Hello,

You are facing an issue that is more related to the discovery kit capabilities.

If possible, I recommend you to post your question to the microcontroller forum. And especially in the STM32 evaluation tools category.

Here is a shortlink :

https://my.st.com/public/STe2ecommunities/mcu/Lists/STM32Discovery

If you need op-amps or comparators in your designs, in addition to STM32 you can also think to the wide ST analog portfolio.

Thanks and regards,

Sylvain

mejrissi
Associate II
Posted on April 07, 2014 at 10:51

Thank you for your reply :)