pad on din in on neopixel stick has come off

EL Wire/Tape/Panels, LEDs, pixels and strips, LCDs and TFTs, etc products from Adafruit

Moderators: adafruit_support_bill, adafruit

Please be positive and constructive with your questions and comments.
Locked
lowres
 
Posts: 5
Joined: Sun Jul 20, 2014 12:46 pm

pad on din in on neopixel stick has come off

Post by lowres »

The pad on the din in has come off. Is there a work around for this or am I out of luck?

User avatar
Franklin97355
 
Posts: 23911
Joined: Mon Apr 21, 2008 2:33 pm

Re: pad on din in on neopixel stick has come off

Post by Franklin97355 »

Could you post clear pictures of your board and the connections to it? Sometimes you can solder to the space just beyond the pad by removing the solder mask to expose the copper.

lowres
 
Posts: 5
Joined: Sun Jul 20, 2014 12:46 pm

Re: pad on din in on neopixel stick has come off

Post by lowres »

neopixel stick lost pad
neopixel stick lost pad
pad.jpg (253.9 KiB) Viewed 449 times
the data in pad

User avatar
Franklin97355
 
Posts: 23911
Joined: Mon Apr 21, 2008 2:33 pm

Re: pad on din in on neopixel stick has come off

Post by Franklin97355 »

Sorry to see that. It looks like you pulled on the wire attached to the pad and pulled it off. You can still try connecting to the trace next to the pad or the first led of the string on the other side.

User avatar
adafruit_support_bill
 
Posts: 88093
Joined: Sat Feb 07, 2009 10:11 am

Re: pad on din in on neopixel stick has come off

Post by adafruit_support_bill »

Try to minimize the time spent heating the joint for soldering. Excessive heat can degrade the adhesive holding the copper layer to the board.

With a clean hot iron, you should be able to complete the joint in 2-3 seconds. If you are using a lower-powered iron (< 25 watts) give it time to recover between joints and let it come back up to temperature.

lowres
 
Posts: 5
Joined: Sun Jul 20, 2014 12:46 pm

Re: pad on din in on neopixel stick has come off

Post by lowres »

Franklin, can you sketch out what you are describing "You can still try connecting to the trace next to the pad or the first led of the string on the other side."?
Thanks

User avatar
Franklin97355
 
Posts: 23911
Joined: Mon Apr 21, 2008 2:33 pm

Re: pad on din in on neopixel stick has come off

Post by Franklin97355 »

The rectangle in the photo MAY have a trace under the solder mask but my other idea is not really feasable due to where the Din pin is on the chip.
Attachments
2014-07-21_18h07_30.png
2014-07-21_18h07_30.png (263.95 KiB) Viewed 392 times

lowres
 
Posts: 5
Joined: Sun Jul 20, 2014 12:46 pm

Re: pad on din in on neopixel stick has come off

Post by lowres »

thanks, I will try scraping off the face

lowres
 
Posts: 5
Joined: Sun Jul 20, 2014 12:46 pm

Re: pad on din in on neopixel stick has come off

Post by lowres »

scraped it down and was able to solder a good connection

User avatar
Franklin97355
 
Posts: 23911
Joined: Mon Apr 21, 2008 2:33 pm

Re: pad on din in on neopixel stick has come off

Post by Franklin97355 »

Good work, glad you were able to save the strip.

Locked
Please be positive and constructive with your questions and comments.

Return to “Glowy things (LCD, LED, TFT, EL) purchased at Adafruit”