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builderpages:plasmo:smtsoldering [2017/04/17 17:51]
plasmo
builderpages:plasmo:smtsoldering [2017/04/27 19:27] (current)
plasmo
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 {{:builderpages:plasmo:smtsoldering:dsc_24510417.jpg?nolink&926x1079}} {{:builderpages:plasmo:smtsoldering:dsc_24510417.jpg?nolink&926x1079}}
  
-The second version has generous long pads for the solder iron to preheat and room to apply solder to the pads so it will flow to wet the leads. This is the right SMT footprints for hand soldering. Note: it is hard to tell at this resolution, but the part on the left of picture below (the one that's soldered up-side-down) is actually a used part that was removed with bent leads and solder bridges. The leads were straighten & flatten manually and soldered to the board. It should work (as soon as I figure out how to compensate for being soldered up-side-down).+The second version has generous long pads for the solder iron to preheat and room to apply solder to the pads so it will flow to wet the leads. This is the right SMT footprints for hand soldering. Note: it is hard to tell at this resolution, but the part on the left of picture below (the one that's soldered with incorrect orientation) is actually a used part that was removed with bent leads and solder bridges. The leads were straighten & flatten manually and soldered to the board. It should work (as soon as I figure out how to compensate for being soldered incorrectly).
  
 {{:builderpages:plasmo:smtsoldering:dsc_24440417.jpg?nolink&1283x778}} {{:builderpages:plasmo:smtsoldering:dsc_24440417.jpg?nolink&1283x778}}
 +
 +Connect power and ground and JTAG programming header to two of the boards.  The devices are programmed successfully.  Outputs are programmed high and low and they checked out OK.
 +
 +{{:builderpages:plasmo:smtsoldering:dsc_24620427.jpg?nolink&934x1068}}
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 +{{:builderpages:plasmo:smtsoldering:dsc_24630427.jpg?nolink&1190x840}}
  
  
builderpages/plasmo/smtsoldering.1492465904.txt.gz · Last modified: 2017/04/17 17:51 by plasmo
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