Hello all, shout out to this great site and SpokePOV!
I soldered all the connections thoroughly but when I plug the USBtiny into my USB port there is no detection for drivers by Windows and the green LED does not light up on the board.
I have already reviewed my soldering points and used a multimeter to verify that only one pin of the USB connector is recieving +5V and there is continuity between most of the solder pads on the board.
I'm pretty stumped now, my only guess is that a bad component could be breaking the circuit. See pictures below:
Front
Back
USBtinyISP not recognized by USB
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Please be positive and constructive with your questions and comments.
- adafruit_support_rick
- Posts: 35092
- Joined: Tue Mar 15, 2011 11:42 am
Re: USBtinyISP not recognized by USB
The picture is kind of fuzzy, but most of your solder joints look like cold joints. They mostly look like a spherical blob of solder on the pin. On many of them, it's possible to see the solder pad underneath the blob.
You want your solder joints to look like this:
The should be smooth and shiny with a concave section. Reheat all of your solder joints, *making sure* to heat the *pad* as well as the pin. The solder should flow completely over the pad and up the pin.
We have a nice tutorial on soldering here:
https://learn.adafruit.com/adafruit-gui ... ring/tools
You want your solder joints to look like this:
The should be smooth and shiny with a concave section. Reheat all of your solder joints, *making sure* to heat the *pad* as well as the pin. The solder should flow completely over the pad and up the pin.
We have a nice tutorial on soldering here:
https://learn.adafruit.com/adafruit-gui ... ring/tools
- mistereli
- Posts: 2
- Joined: Wed Oct 29, 2014 9:58 pm
Re: USBtinyISP not recognized by USB
Thank you for the reply Rick, some of the solder points were a bit messy so I went through and re-seated every pad on the board but unfortunately had the same results (no LEDs, no windows recognition, reading +5V from one USB pin).
I also tested each PCB trace for continuity and verified the values of the resistors.
Unless you have any other diagnostic suggestions, I'm afraid a chip or component is malfunctioning and the device is non-repairable.
Would it be possible for adafruit to send a replacement kit? I can return this assembled board for examination if you'd like to try your luck.
I also tested each PCB trace for continuity and verified the values of the resistors.
Unless you have any other diagnostic suggestions, I'm afraid a chip or component is malfunctioning and the device is non-repairable.
Would it be possible for adafruit to send a replacement kit? I can return this assembled board for examination if you'd like to try your luck.
- adafruit_support_rick
- Posts: 35092
- Joined: Tue Mar 15, 2011 11:42 am
Re: USBtinyISP not recognized by USB
Please email [email protected] with a link to this thread for a replacement kit
Please be positive and constructive with your questions and comments.