By taking an existing known-good PCB, stripping off all the SMT parts, and moving the through hole components to the rear PCB side, pogo pins could be soldered to strategic locations. This compressed the pogos in order to make a firm electrical contact. A piece of MDF that had been attacked with a dremel did duty as a pressure plate, with cutouts around the SMT component areas to achieve the required uniform board pressure and keeping the force away from the delicate soldered parts.
All this means that with an UUT connected via pogo pins to a through-hole only test PCB, the full circuit would be completed, if and only if the UUT was completely functional, and that means defect-free soldering and defect-free components.
Next the firmware was rewritten to do duty as the test controller, which when powered up would step through a sequence of test scenarios and measurements, logging the results to an OLED display and a serial interface. This rig survived 1, SMT tests without failing, giving [Hans] the confidence to ship out new kits and providing a database of datalog results as a backup should a customer have an issue during final assembly.
All-in-all a smart idea to solve a difficult problem, with nary a custom test jig PCB in sight! These pages have been graced with many a pogo-based test rig over the years. FYI the test jig is still going strong almost a year after construction and has now tested something like 2, boards. And I like the concept so much that I have built several more test jigs for subsequently designed products and committed myself to doing this on all future products too.
BTDT… These round-head pogo pins are not the ones you want… Put a reworked PCB with some flux residue on there and they get pretty unreliable until you clean everything with eg. The eevblog forum has nice writeups on this topic.
I make these jigs by simply modifying the kicad files. First, remove everything but the test points in kicad. Then replace the location of the footprints front to back and vice versa and replace the footprint to something which can take your pogo pins in a text editor. You may also want to move your outline to the right silk screen layer. Go back into kicad and add some pin headers to break out everything and add a new, bigger outline.
Registration can be done with precision pins.. These are also very usable to align the solder past stencil… Just add the holes to the mask layer. HD by playing and climbing ranks. Looks like Javascript is disabled on your browser. Javascript needs to be enabled on your browser for Pogo to load.
HD Playing Now! Team up with Spike in Poppit! HD, a free online puzzle game that'll have you popping up a storm. Play Now. You will transform into Pogo Bookworm HD unblocked is a fun web-browser puzzle game with remarkable challenges. Your task is simply Pogo Crossword Cove HD is a good free online game set in various beautiful landscapes from around About Scrabble Pogo Scrabble is a cool game that you should not ignore.
Features Play Pogo Scrabble online and you can learn much more about several features that an interactive board has. Indeed, the game is quite fun with the sound effects. However, you can disable it to prevent it from emitting strange sounds by pressing the speaker icon on the screen. Additionally, you are not allowed to cheat when you accept to join Scrabble. When the word is spelled incorrectly, the Play button will not work.
That can result in a perfect choice, you know. It is very useful for those who do want to achieve unjust advantages. Play on your computer, tablet or phone.
See all results for this question. Are there any free online word games on Pogo? Word games are one of the best ways to improve brain function and bolster key language skills. Who knew games could be both fun and rewarding! What are you waiting for? Come find your favorite games!
0コメント