Line Tracker Example

[roboflank]

Can you kindly update the line tracker example? The current one requires a ReflectedArray file which can't seem to be found. ReflectArray = require("./reflect.array"), http://johnny-five.io/examples/line-follower/ Or is the file in the library?

[roboflank]

Am using SparkFun Line Follower Array and it doesn't seem to have the emitter object, anyway to go about it?

[henricavalcante]

Maybe this one? https://github.com/rwaldron/johnny-five/blob/master/eg/ir-reflect-array.js

[rwaldron]

I don't even know why that code is there, it's not doing anything.

[rwaldron]

Unfortunately, the QRE1113 is a completely different protocol that's not supported by the IR.Reflect.Array class. That's not to say that it can't be supported, just that the work hasn't been done yet because no one has ever asked about it (that I can recall).

@BrianGenisio any thoughts?

[rwaldron]

I just ordered one of these components, I'll let you know when it arrives and keep you posted on support progress.

[roboflank]

@rwaldron Okay, thanks.

[BrianGenisio]

The emitter pin is something that the Pol0lu sensor has. It looks like this SparkFun emitter is always on. Looks like a pretty straight-forward I2C interface to write against, but @rwaldron is right... it isn't currently supported. Only the Analog Pololu sensor has support currently, but a clean I2c interface would be really nice for that sensor (less wires FTW!)

I think we are talking about pulling the Reflection Array into a separate J5 plugin. I'm ordering one also so I can hack on it.

[BrianGenisio]

@denzelwamburu I have a POC of the SparkFun reflectance array working with Johnny-Five. Can you pull my fork here, and see if it works for you? https://github.com/BrianGenisio/johnny-five/tree/sen-13582

You don't need pins or enable with this component, but you need to tell it which controller to use. An example:

five.Board().on("ready", function() {
  var eyes = new five.IR.Reflect.Collection({
    controller: 'SEN_13582',
    autoCalibrate: true
  });

  eyes.on("line", function(line) {
    console.log("line: ", line);
  });
});

[roboflank]

@BrianGenisio Great thank you. Let me check it out then i will get back to you :)

[BrianGenisio]

@denzelwamburu Did you ever try this branch to see if the code here works for you?

@rwaldron I just realized that I have a mostly working driver sitting in that branch for that sensor, which also enables that component to add other sensor array variants. I forgot I wrote it. Hoping to get this resurrected some time soon.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.