Rewire Module

[ianlee74]

@ godefroi - that works for me. Certainly allows the most flexibility.

[ianlee74]

@devhammer

Why does it matter? This module isn’t directional in any way. Or am I missing something?

Sure it is. If I want to map module pin #7 to pin #2 and I plug the module into the wrong side of the Rewire module then I’ll be mapping pin #2 to pin#7

[godefroi]

How much interest is there here, and what price point is a good target? The Gadgeteer sockets are $0.50 per (need two) from Architect, the cables are $1.50 from the same source, the board is $1 per from Seeed, in green, with the standard HASL finish. Going lead-free and black makes the boards significantly more expensive. The header in the middle is about $0.40 plus shipping.

The absolute rock-bottom cost here, then, is $4 plus shipping, without leaving any room for handling costs (profit). Assembled, they’d be significantly more expensive, because hand-soldering two sockets per board would take some time.

I’m willing to have the boards made and mail out kits, but I’m not really eager to do the soldering unless there’s meaningful profit in it for me.

[ianlee74]

@godefroi

How much interest is there here, and what price point is a good target? The Gadgeteer sockets are $0.50 per (need two) from Architect, the cables are $1.50 from the same source, the board is $1 per from Seeed, in green, with the standard HASL finish. Going lead-free and black makes the boards significantly more expensive. The header in the middle is about $0.40 plus shipping.

The absolute rock-bottom cost here, then, is $4 plus shipping, without leaving any room for handling costs (profit). Assembled, they’d be significantly more expensive, because hand-soldering two sockets per board would take some time.

I’m willing to have the boards made and mail out kits, but I’m not really eager to do the soldering unless there’s meaningful profit in it for me.

Drop the cables. Drop the headers. How about $5 for a kit with just the PCB + sockets. How much more for black?

[HughB]

this would be very cool but for the EU it would need to be lead free, i guess this will push the price up.

[godefroi]

For 10 at a time in black, the price goes from $1 per to $3 per (still not RoHS). In 50s, the price goes from $1 per to $1.30 per (still not RoHS). In 50s, in black, with the ENIG finish (this is what OSH Park uses, the nice gold finish), RoHS compliant, they’re $2.80 per. In 50s, black, with lead-free HASL finish, they’re $1.40 per.

[devhammer]

@ianlee74

@devhammer

Why does it matter? This module isn’t directional in any way. Or am I missing something?

Sure it is. If I want to map module pin #7 to pin #2 and I plug the module into the wrong side of the Rewire module then I’ll be mapping pin #2 to pin#7

Right. That makes sense, but that’s a matter of how the rewiring is done, not necessarily which socket needs to be in/out. Personally, I’d just use our PTouch labeler to add labels once the pin mapping is set up. Simple and removable.

[WouterH]

@ devhammer - you’ll never use it to connect 2 modules or 2 mainboards togetter, right? So, for the same PCB price, put the Module/Mainboard label on it and your done. Your printer roll will cost more then 0$ I suppose

[ianlee74]

@godefroi

For 10 at a time in black, the price goes from $1 per to $3 per (still not RoHS). In 50s, the price goes from $1 per to $1.30 per (still not RoHS). In 50s, in black, with the ENIG finish (this is what OSH Park uses, the nice gold finish), RoHS compliant, they’re $2.80 per. In 50s, black, with lead-free HASL finish, they’re $1.40 per.

Wow… I was excited that they added the black option. Not so much now…

[godefroi]

I ordered some PCBs (the dirt cheap ones), it’ll be several weeks before they arrive (Seeed is slower than OSH Park). I’ll update when they get here.

[GMod_Errol]

Sorry, only saw this thread now.

One observation: The “out” socket should be reversed, as it should be placed as if on a mainboard, notch towards the edge of the board.

Module makers, PLEASE make all “I” modules “IX” modules!!!

This can’t be done without major work. “X” socket requires pull up resistors on the I2C lines, “I” socket outlaws pullup resistors on the I2C lines…

[ianlee74]

@GMod(Errol)

This can’t be done without major work. “X” socket requires pull up resistors on the I2C lines, “I” socket outlaws pullup resistors on the I2C lines…

Bummer… I guess we really need that I2C hub then.

[GMod_Errol]

How about a module that convers “I” to “X”?

[ianlee74]

@GMod(Errol)

How about a module that convers “I” to “X”?

You mean an “X” I2C module that would serve as a proxy for the “I” module? Interesting idea… The hardware based hub would probably be more efficient though.

[godefroi]

I’ve made a few of these available on my store: http://3ln.org/Store#ecwid:category=0&mode=product&product=14679551

Note the warnings on that page. The cable is backwards, the next revision will fix that issue.

[ianlee74]

[quote=“godefroi”]
I’ve made a few of these available on my store: http://3ln.org/Store#ecwid:category=0&mode=product&product=14679551[/quote]

Looks great!

Note the warnings on that page. The cable is backwards, the next revision will fix that issue.

Just to clarify… The X2 socket is to be mounted as drawn, right? You’re just saying that in the next version it will be rotated 180 deg?

In my original post, I had said I would pre-order 5. Your shopping cart says you only have 5. I don’t want to hog them all. So, hang onto two for me and if someone doesn’t claim the rest in the next couple days then I’ll take whatever is left. Ok?

[godefroi]

@ianlee74

Just to clarify… The X2 socket is to be mounted as drawn, right? You’re just saying that in the next version it will be rotated 180 deg?

In my original post, I had said I would pre-order 5. Your shopping cart says you only have 5. I don’t want to hog them all. So, hang onto two for me and if someone doesn’t claim the rest in the next couple days then I’ll take whatever is left. Ok?

Yes, exactly. I actually have 11, but if everyone needs two sockets with each one, I’ll run out before I can sell them. If you don’t want or need sockets, feel free to take 5. I have more on order (both boards and sockets).

[ianlee74]

[quote=“godefroi”]Yes, exactly. I actually have 11, but if everyone needs two sockets with each one, I’ll run out before I can sell them. If you don’t want or need sockets, feel free to take 5. I have more on order (both boards and sockets).
[/quote]

Does the item listed in your store for $3 include sockets? If so, then I’d rather wait and just get them with the sockets (as a kit). My stock of sockets is getting depleted also. How about if I go ahead and place the order for 5 and you ship them after your new supply comes in. You can keep the current available stock for others that might need them. I don’t have anything in the works today that requires these. So, a couple weeks delay in shipping is not a problem.

[godefroi]

No, they’re $3 without sockets, or $4.50 if you want sockets. If you’re buying several, you’re better off getting your sockets from Architect, as he sells them cheaper. He’s where I’m getting them anyway. I do have more on order, so I expect that by the end of next week I’ll have plenty more.

[ianlee74]

Gotcha. Order placed. No rush on any of it. Thanks!