Here’s a little project I am working on, primarily for prototyping use.
This is version 1. I have a few mistakes on the board with the gadgeteer sockets and one of the ethernet LEDs. Version 2 will fix those problems and add a i2c MAC address EEPROM as well.
If there is any interest I could make available through Creations or TKA.
Now I just need to figure out what to do about the “my cerb40s already have short male headers” issue. I would like to avoid desoldering 40 pins on each. :think:
Also, do you have a part number for the female headers?
I will try to get a price in the next few days. I hope to send the new board rev out Monday to made.
No problem leaving the headers unsoldered. After a few modules its gets a little old soldering them anyway. :-[
Here is where I got the female headers. https://www.sparkfun.com/products/11376
They are not the easiest things to find. I couldn’t find them at Mouser or Digikey. If someone has another source for them let me know. It would be nice to get 20pos. Two 10 positions work but its a bit of a snug fit.
Currently this is how the sockets are wired. If there are any suggested changes let me know if the next day or two. (ENC28 connections RST# - PB10, CS# - PA13, INT# - PA14, WOL# - PB11)
*Note: Pin 2 from both sockets go to solder jumpers on the bottom that can be closed to connect to the USB power pin (+5Vdc). By default the jumper is open so pin 2 is not connected. (Each socket has its own jumper.)
@ Brett - Thanks for finding those headers. The Jameco are similar to what I am using now. I will have to get some of the 40pin and see how hard it is to cut them.
I didn’t get the board updates done this week. To many other distractions. (I did have 2 other prototype boards I wanted to get built. :-[ )
I hope to get the updates done and out for a run of boards next week.
Version 2 boards have been ordered. I pretty much re-routed the entire board. For some reason I had put the crystal opposite side of the ENC28 on version 1 so I had the crystal traces pretty long. :wall: I fixed my socket pins and added the I2C MAC EEPROM.
I will update here on success of Version 2, price and availability in the next week or so.
like all small retail outlets, I can totally understand their pricing structures, but wouldn’t quite go as far as calling it gouging. Keeping a stockpile of little baggies of these must be a tremendous PITA. Don’t have to like it but don’t think I’m that concerned by paying a premium to be able to buy 6x of them individually. But when I want 10 or 100, I know it’s better to look elsewhere. I have a lot of 40-pin normal headers as I use them all over the place, and I just chop them down and sand the end smooth and they work a treat - bought cheap and I have probably enough to last me into my 60’s.
Well maybe gouge is too strong a term… I’ve run into a few situations where their markup was an order of magnitude higher than what I would have considered reasonable. “reasonable” is tricky to quantify, as everybody will have a different idea of what that means. If it was my profit margin, I’m sure it would adjust upward