SOLVED: "Didn't find PN53x board" in Console Output

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vgx1987
 
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SOLVED: "Didn't find PN53x board" in Console Output

Post by vgx1987 »

Hi, I purchased Adafruit PN532 (v 1.3) and soldered "Shield stacking headers" on it, but when I insert in my USB port (i.e: COM3 or any other port) PN532 doesn't load and all lights are OFF (both Arduino and PN532)
Arduino IDE can't find any COM port with PN532 and it seems that isn't plugged in at all, but Arduino UNO r3 itself works flawlessly and there aren't any overheating issues... I also tested it with a 9V battery and it's overheating with PN532..
Last edited by vgx1987 on Sat Aug 30, 2014 6:36 am, edited 2 times in total.

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adafruit_support_rick
 
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Re: PN532 NFC Shield not loading and overheating issue

Post by adafruit_support_rick »

Sounds like you've got a short-circuit. Please post clear, detailed pictures of both sides of the shield, showing your soldering.

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vgx1987
 
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Re: PN532 NFC Shield not loading and overheating issue

Post by vgx1987 »

Pictures of my PN532:

Upper side - http://i59.tinypic.com/33ky648.jpg

Vertical lower side - http://i57.tinypic.com/14nh0mg.jpg

Lower Digital I/O side: http://i59.tinypic.com/14kekpy.jpg

Lower Analog Input side: http://i60.tinypic.com/xfukoh.jpg

The short-circuit happened when I plugged in the first time when all stacking headers were fixed

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adafruit_support_bill
 
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Re: PN532 NFC Shield not loading and overheating issue

Post by adafruit_support_bill »

It looks like you have soldered all the pins together but not to the board. That explains the short circuit. Each pin needs to be soldered to the surrounding solder pad and must not contact any of the adjacent pins. Please review this guide. It has some tips on identifying and repairing common soldering problems.

http://learn.adafruit.com/adafruit-guid ... n-problems

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vgx1987
 
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Re: PN532 NFC Shield not loading and overheating issue

Post by vgx1987 »

Is PN532 reusable after resoldering it or it's broken forever after the short-circuit?

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adafruit_support_bill
 
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Re: PN532 NFC Shield not loading and overheating issue

Post by adafruit_support_bill »

It should be usable. The short circuit would prevent any current from going through the PN532. If there is any damage, it would be to the power supply or the Arduino voltage regulator. But if your Arduino is still working, you should be OK.

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vgx1987
 
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Re: PN532 NFC Shield not loading and overheating issue

Post by vgx1987 »

Now I fixed the soldering and PWR and BUSY lights are on as shown in this picture:

http://i58.tinypic.com/2zogcb7.jpg

but there's another problem, after I successfully imported Arduino_NFCShield_I2C library from github, I tested some examples like FormatNdef and ReadMifare but Console writes: "Didn't find PN53x board" and I wonder why...
I tested a simple snippet like this one:
Serial.println(nfc.getFirmwareVersion());
and it displays 0 in console output

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adafruit_support_rick
 
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Re: Updated: "Didn't find PN532 board" in Console Output

Post by adafruit_support_rick »

Can we see the updated soldering?

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vgx1987
 
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Re: SOLVED: "Didn't find PN53x board" in Console Output

Post by vgx1987 »

Luckily I refined my soldering and after I pressed the shield on Arduino Uno, it has found my Firmware version 1.6 and I successfully wrote a NFC Tag with formatNDEF :)

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adafruit_support_bill
 
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Re: SOLVED: "Didn't find PN53x board" in Console Output

Post by adafruit_support_bill »

Great!

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