GoPiGo LIne Sensor [SOLVED]


#1

The GoPiGo Hardware and Port Descript page has 3 analog line sensor ports labeled. I can’t find any other reference to these ports on the web site. Are they thru the Python library? What are the specs? I have three GrovePi Line Sensors that would like to use, but I don’t have enough info to do so.


#2

Hey,
The line sensor header is connected to three analog pins on the Atmega328P micro-controller on the GoPiGo. These pins can be accessed directly from the GoPiGo and allow people to directly connect 3 analog sensors to these lines line. You can connect analog line sensors to these and use them to follow a line with the GoPiGo.

I have attached the breakout for the adapter. If you don;t want to make your own line sensor and you are interested in line following projects, you should follow our Kickstarter here: https://www.kickstarter.com/projects/john-cole/gobox-the-robot-kit-with-a-new-mission-delivered-m . We are going to launch a line follower in time for the holidays.

-Karan


#3

Karan - thanks, I have already read about the kickstart, sounds great and the line follower is just what I need, but a little too late. My class is learning Python now and I want to have them do line following in a few weeks.

I don’t see an attachment for the adapter breakout. Am I going blind?


#4

Hey,
For the 6 pin header on the GoPiGo, we don;t sell an adapter as such, but we have this which should work with it:http://www.dexterindustries.com/shop/isp-firmware-programmer/. You can pretty much use any standard .1 jumpers with it.

For the newer line sensor we ended up not using the 6 Pin adapter for the line follower since it could only support 3 sensors. We added a microcontroller on the line sensor itself which gives us very fast response and we use I2C for communications which you can connect directly to the Grove I2C port.

-Karan


#5

Is there a breakout of the pins? I can fabricate whatever the adapter needs to be.


#6

wmatchett, what do you mean by breakout? Like a breakout to a PCB board or breadboard?

We have a schematic of the GoPiGo, published here: https://github.com/DexterInd/GoPiGo/tree/master/Hardware


#7

Breakout is the word Karan used above. What I hope she means is a pin description of the line following port that would tell me how to crate an adapter to connect three GrovePi Line Finders to it.


#8

Hey,
You can check the pin layout in the attached picture. The power is given by a single 5V line and the output can be read on A1, A2 and A3 analog lines.

-Karan


#9

Thanks! This is what I was looking for.