OOOOPS!! Two different ways to build your Quickstart Protoboard
mindrobots
Posts: 6,506
Ignore the original message below except for historical purposes.
When you go to solder the header onto your Quickstart Proto Board, PAY ATTENTION!!! There are two ways to assemble this simple, ingenious little card.
1) Overlapping - where the top side of the board will read "PARALLAX SEMICONDUCTOR" underneath the header connector. In this configuration, the Proto Board footprint will match the Quickstart footprint and they stack nicely but the keypad and LEDs are covered.
2) Overhanging - where the top side of the board will read "P8X32A QuickStart Proto Board" on top of the header connector. In this configuration, the Proto Board footprint will extend from the top of the QuickStart. The stack is bigger but the keypad and LEDs are exposed.
The legend on the right side of the card appears to be correct for tthe TOP surface of the card.
In OVERLAPPING configuration, the uppermost signal hole is VSS.
In OVERHANGING configuration, the uppermost signal hole is SDA.
This led to confusion last night when I was soldering up a prototype and things weren't matching....my sleepy brain couldn't put the pieces together which led to my original message.
Could SOMEONE from Parallax confirm this and also check page 6 of the product documentation, I think the pictures of the signal pins might still be flipped between the two configurations.
Once again, the moral to the story is, "Even for something you think is simple, like a proto board, read the documentation!"
Thanks to Nick and Tubular for following me down this road of my confusion!!
[Original Message: Am I missing something?
I'm building a Quickstart add-on with a Quickstart Protoboard (#300-40010 ) and started to solder wires to the labeled holes on the side and found a problem. If you put a wire through the hole labeled VSS on the top, for example, it comes out a hole labeled VIN on the bottom. VSS on the bottom is next to it and empty. 3.3v on the top, RESn on the bottom.....and so on.
Shouldn't the labels match?? I haven't figured out which set of labels are correct yet but one of them must be wrong.
The pin numbers on the two sets of headers are wrong too.
OOOOOOPS!?!?!?!?]
When you go to solder the header onto your Quickstart Proto Board, PAY ATTENTION!!! There are two ways to assemble this simple, ingenious little card.
1) Overlapping - where the top side of the board will read "PARALLAX SEMICONDUCTOR" underneath the header connector. In this configuration, the Proto Board footprint will match the Quickstart footprint and they stack nicely but the keypad and LEDs are covered.
2) Overhanging - where the top side of the board will read "P8X32A QuickStart Proto Board" on top of the header connector. In this configuration, the Proto Board footprint will extend from the top of the QuickStart. The stack is bigger but the keypad and LEDs are exposed.
The legend on the right side of the card appears to be correct for tthe TOP surface of the card.
In OVERLAPPING configuration, the uppermost signal hole is VSS.
In OVERHANGING configuration, the uppermost signal hole is SDA.
This led to confusion last night when I was soldering up a prototype and things weren't matching....my sleepy brain couldn't put the pieces together which led to my original message.
Could SOMEONE from Parallax confirm this and also check page 6 of the product documentation, I think the pictures of the signal pins might still be flipped between the two configurations.
Once again, the moral to the story is, "Even for something you think is simple, like a proto board, read the documentation!"
Thanks to Nick and Tubular for following me down this road of my confusion!!
[Original Message: Am I missing something?
I'm building a Quickstart add-on with a Quickstart Protoboard (#300-40010 ) and started to solder wires to the labeled holes on the side and found a problem. If you put a wire through the hole labeled VSS on the top, for example, it comes out a hole labeled VIN on the bottom. VSS on the bottom is next to it and empty. 3.3v on the top, RESn on the bottom.....and so on.
Shouldn't the labels match?? I haven't figured out which set of labels are correct yet but one of them must be wrong.
The pin numbers on the two sets of headers are wrong too.
OOOOOOPS!?!?!?!?]
Comments
Edit - nevermind! I think I figured it out - it's labelled so that the labels on top are correct no matter which way you flip the board. So the labels on top are always the correct ones.
I think each pair of labels on the pretty side is transposed. If you use the plainer side the labels seem correct. This is the side that is uppermost if you install the proto on top of the quickstart.
The pin labels are correct as far as I can tell.
See how the 'odd' rows that start with pin 1 end with pin 40
and the 'even' rows that start with pin 2 end with pin 39
Build it with "Parallax Semiconductor" and it' labeled for overlapping use. It's footprint matches QuickStart footprint.
Build it with "P8X32A QuickStart Proto Board" up and it's labeled for overhanging use.
I still don't trust the labels on the side, I want to follow those traces before I solder up the power lines.