line finder

Grove is a modulated, ready-to-use tool set.
Much like Lego, it takes a building block approach to assembling electronics.

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vidist
Pre-kindergarten
Pre-kindergarten
Posts: 6
Joined: Fri Feb 15, 2019 4:41 pm

line finder

Post by vidist » Sat Apr 13, 2019 11:00 pm

Hello!

I have a Grove line finder 1.1 sensor attached to Raspberry Pi 3B+ and Grovepi+. It recognizes black line only if I place it driectly on the surface, unless (if it is more than 1mm away) it can be used only to mark a depth. (It mark as black if we have approx. more than 15cm differece in the surface ~ like a stairstep, or edge of the table.)
It is said to be adjustable however I have no idea how to adjust it.
Can you, please, help me?

Best regards:
Istvan

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bestlux
Kindergarten
Kindergarten
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Joined: Wed Jan 30, 2019 11:51 am

Re: line finder

Post by bestlux » Mon Apr 15, 2019 9:43 am

I'm sorry for that the adjusting pin of this module is not available.

vidist
Pre-kindergarten
Pre-kindergarten
Posts: 6
Joined: Fri Feb 15, 2019 4:41 pm

Re: line finder

Post by vidist » Tue Apr 16, 2019 2:34 am

Does it mean that my sensor will work this way and I have to accept it, or are there any chance to perform proper work with a proper code?

vidist
Pre-kindergarten
Pre-kindergarten
Posts: 6
Joined: Fri Feb 15, 2019 4:41 pm

Re: line finder

Post by vidist » Wed Apr 17, 2019 4:09 pm

Hello Folks!

The question is this:

My grove line finder sensor V1.1 recognise black only if I place the sensor directly to a black surface. On the attached card it is stated that the effective distance is 0,1-5,5 cm.
Is my sensor damaged? Does anybody have an idea?

Thank you!

vidist
Pre-kindergarten
Pre-kindergarten
Posts: 6
Joined: Fri Feb 15, 2019 4:41 pm

Re: line finder

Post by vidist » Thu Apr 18, 2019 4:57 am

OK!Problem sooved!

There is an adjusting potentimeter like at the Infrared Reflective Sensor, just it is not mentioned in the manual.
Everyithing works fine.

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