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Topic: Adafruit MPR121 sensor shield (Read 286 times) previous topic - next topic

nicourense98

After hours of searching, I have not been able to find how to get the Adafruit MPR121 sensor shield for the Arduino Uno to detect proximity. I believe there is a way to enable this, but cannot figure it out.

spycatcher2k

Quote
After hours of searching, I have not been able to find how to get the Adafruit MPR121 sensor shield for the Arduino Uno to detect proximity. I believe there is a way to enable this, but cannot figure it out.
Where is your evidence to say it supports this feature?
Mrs Drew
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I will design & code for you, but I will also charge you (PM me)
If you don't like my answers, realize : I'm not being cheeky, I'm Just trying to prompt you to use your own brain/google etc.

nicourense98

This documentation says that it has proximity detection: http://cache.freescale.com/files/sensors/doc/app_note/AN3893.pdf
I just cannot figure out how it needs to be done.

spycatcher2k

OK - That's the datasheet, It gives you all the information you need! Read it, understand it.

What range of proximity are you looking for?
Mrs Drew
-=-
http://www.uk-pcb.co.uk - UK PCB Fab Company
I will design & code for you, but I will also charge you (PM me)
If you don't like my answers, realize : I'm not being cheeky, I'm Just trying to prompt you to use your own brain/google etc.

nicourense98

#4
Jul 18, 2018, 08:59 pm Last Edit: Jul 18, 2018, 09:00 pm by nicourense98
Yes, I have read it, and it says that you can enable a proximity detection mode "by configuring the Electrode Configuration Register (0x5E)" but it does not say how/where to do this.
I am looking for any distance right now, as long as there is no physical contact between the touch and the shield.

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