WIGGLING 'LITE' IN GUEST MODE

[clone45]

Hello,

I'm experimenting with the SD card of the nws2/b, but I'm having some issues getting the code to run. I'm using bTestSD.ino. Here are some specifics:

1. I had to crank down the serial port speed to 9600, which is the speed of my serial port, otherwise serial monitor was outputting garbage.
2. I'm programming the nw2s::b using a serial cable
3. I removed all of the files from the SD card and added a single small .wav file. I wouldn't expect that the file contents would cause this error.

Here's the output from serial monitor:

[scottwilson]

There's a few errors depending on how far it gets, and yes, this is way before ever looking at a file. This error happens when the SD library can't communicate with the SD card.

If your computer is reading it fine, then let's assume for the time being that the card is actually okay. First silly check is that the SD card is pushed in well and latched with something pointy. I've been using the edge of a SD to microSD adapter to push it all the way in.

After that, my first check would be the cabling... When the sketch runs, does the READ light blink even slightly? If not, then It's probably the cable. Make sure that the SD reader cable is on the connectors well, and worst case, take a small screwdriver and push on all the wires in the connector slots.

If it does blink, that doesn't completely rule out the cable, so try anyway, and if the cable is fine, then it could be the card, but that's probably the less likely scenario.

The IDE version shouldn't matter much, I don't think Arduino has touched the SD library in ages.

Hope that helps, let me know if that provides any more info that might help debug.

s

[clone45]

Thanks for the support, Scott. I may have figured it out. The cable to the card reader looked fine, but I think that the cable attached to the circuit board might be off by a pin. Let me know what you think. I've attached a photo. If that's true, then I'll just scoot it over!

PS: The read light does turn on briefly while the "Initializing SD card..." code is running.

Cheers,
Bret

[scottwilson]

Yeah, that's definitely incorrect. They should be lined up 1:1... I said this before, and I apologize cause I don't know which of you were kits and which were assembled, but if that's one I put together, then I don't know how it would have gone out that way. If it's mine, sincere apologies!

s

[clone45]

It's no problem Scott! It was assembled, but it's no biggie.

Bingo! The bTestSD sketch now works as expected. Thanks a ton!