Magnetometer? IR Transmitter?

[espruino-discuss]

Posted at 2016-12-03 by user70841

Anyone have a working example of using the MAX3110 Magnetometer or the IR Transmitter?

I didn't see an IR example.

When I looked at the Espruino modules, I saw one for the MAX3110 from sparkfun..Yay! Paste the code in from the last example in the web page.

The puck said:

>
 _____                 _
|   __|___ ___ ___ _ _|_|___ ___
|   __|_ -| . |  _| | | |   | . |
|_____|___|  _|_| |___|_|_|_|___|
          |_| http://espruino.com
 1v88 Copyright 2016 G.Williams
>Uncaught ReferenceError: "B6" is not defined
 at line 1 col 20
I2C1.setup( { scl: B6, sda: B7 } );
                   ^
ERROR: Prompt not detected - upload failed. Trying to recover...
ERROR: Prompt not detected - upload failed. Trying to recover...
ERROR: Prompt not detected - upload failed. Trying to recover...
ERROR: Prompt not detected - upload failed. Trying to recover...
Disconnected
Connected
>

Basically, I just had to open it up, push out the battery, and start again.

Any thoughts anyone?

-Ken

[gfwilliams]

Posted at 2016-12-03 by @gfwilliams

Yeah, sorry - this isn't documented well at the moment. The Puck specific things are already built in, in the Puck object. Info here: http://www.espruino.com/Reference#Puck

Basically you can just do: Puck.mag() to get the magnetometer readings, or can set it up to run in the background:

Puck.magOn();
Puck.on('mag', function(xyz) {
  console.log(xyz);
});
// Turn events off with Puck.magOff();

IR transmitter works with Puck.IR() as well - example of doing it from a website here: https://github.com/espruino/espruino.github.io/blob/master/puck3.html

But I'll do a tutorial on using it (and getting the IR signals to use) soon.

The I2C crashing it is a strange one - it could be it was just waiting for a response. It might be next time you can just break out with Ctrl+C, but I'll look into it.

[gfwilliams]

Posted at 2016-12-03 by @gfwilliams

Just to add, I've put some more detailed info on the Puck page now: http://www.espruino.com/Puck.js

[espruino-discuss]

Posted at 2016-12-09 by user70841

Spectacular! That's just the info I needed.

Thanks Gordon.

-Ken