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..
SOLVED: "Didn't find PN53x board" in Console Output
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- vgx1987
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- Joined: Thu Aug 28, 2014 3:39 pm
SOLVED: "Didn't find PN53x board" in Console Output
Last edited by vgx1987 on Sat Aug 30, 2014 6:36 am, edited 2 times in total.
- adafruit_support_rick
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Re: PN532 NFC Shield not loading and overheating issue
Sounds like you've got a short-circuit. Please post clear, detailed pictures of both sides of the shield, showing your soldering.
- vgx1987
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- Joined: Thu Aug 28, 2014 3:39 pm
Re: PN532 NFC Shield not loading and overheating issue
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
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
- adafruit_support_bill
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Re: PN532 NFC Shield not loading and overheating issue
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
http://learn.adafruit.com/adafruit-guid ... n-problems
- vgx1987
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Re: PN532 NFC Shield not loading and overheating issue
Is PN532 reusable after resoldering it or it's broken forever after the short-circuit?
- adafruit_support_bill
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Re: PN532 NFC Shield not loading and overheating issue
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.
- vgx1987
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- Joined: Thu Aug 28, 2014 3:39 pm
Re: PN532 NFC Shield not loading and overheating issue
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:
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:
and it displays 0 in console outputSerial.println(nfc.getFirmwareVersion());
- adafruit_support_rick
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Re: Updated: "Didn't find PN532 board" in Console Output
Can we see the updated soldering?
- vgx1987
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- Joined: Thu Aug 28, 2014 3:39 pm
Re: SOLVED: "Didn't find PN53x board" in Console Output
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 :)
- adafruit_support_bill
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Please be positive and constructive with your questions and comments.