I ordered one of these when it first came out (actually pre ordered) and when I received the item it had all the headers in bags for me to solder on.

I liked the board so I ordered another, it seemed that the base board did not come with the headers, so I ordered the FRDMKL25Z Basic Bundle, and it came with single row headers, not the dual row headers. You guys need to make this clear because the

header pins have different signals side by side, now I have to research the proper headers and purchase those, which it looks like like are about $10 more plus shipping.

Mike

Hello Michael

If you really need the dual row headers, I have posted the reference of the dual row headers HERE (I have checked the pn ordering samples).

My colleague Erich has posted HERE a nice document detailing his experience with those headers and an Arduino Datalogger Shield.

Element14 has posted HERE a document with the PIN Layout.

Correct me if I am wrong, but in my understanding, just the external rows are necessary to warranty the compatibility with Arduino shields, so Element14 choice to provide single row connectors seems justified.

Even if it embeds many features innovative and comprehensive, FRDM-KL25Z must stay cheap to be accessible to a large number of customers (10$ seems to be the target cost). To achieve this goal, Freescale has decided to remove the connectors from in the orginal version of the board.

After I received the board and saw they were single row headers,I found the headers that  I needed, I just thought that was what I was buying when I bought the basic bundle, I don't really care about arduino shield compatibility, and I don't mind paying extra for the headers. I would have preferred to save the money on the basic bundle and put it towards the headers and not have to pay an additional shipping charge. Perhaps a bundle with dual row headers would be a nice offering as well.

BTW, I like the board, that's why I bought multiples, I just didn't seem clear from this page http://www.newark.com/jsp/search/productdetail.jsp?SKU=46W9880 that those were the single row headers. After I received the package and looked really close at the photo I see that those are single row headers.

I'm not really unhappy about any of this, just a caution to those buying in the future, and it might be nice in the decription of the bundle to mention that those are the single row headers, and a link from the accessories section on the page to the two row headers would be nice.

Mike

After I received the board and saw they were single row headers,I found the headers that  I needed, I just thought that was what I was buying when I bought the basic bundle, I don't really care about arduino shield compatibility, and I don't mind paying extra for the headers. I would have preferred to save the money on the basic bundle and put it towards the headers and not have to pay an additional shipping charge. Perhaps a bundle with dual row headers would be a nice offering as well.

BTW, I like the board, that's why I bought multiples, I just didn't seem clear from this page http://www.newark.com/jsp/search/productdetail.jsp?SKU=46W9880 that those were the single row headers. After I received the package and looked really close at the photo I see that those are single row headers.

I'm not really unhappy about any of this, just a caution to those buying in the future, and it might be nice in the decription of the bundle to mention that those are the single row headers, and a link from the accessories section on the page to the two row headers would be nice.

Mike