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LaunchFET: Tag connect for launchpad


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I reckon the legs are worth the extra effort if you need to do any debugging

 

yes and no.  The extra holes required for the legs make it impossible to route traces to all the pads and stay within the specs supported by the low cost board houses (you have to use 6 mil traces and be <15mil from the drills).  I've also found that the legs are really stiff and difficult to get to [dis]engage without the help of needle nose...and they require you leave enough space surrounding the pad to get your fingers/tool on the cable to get it free.

 

As an alternative, there is this guy: http://www.tag-connect.com/TC2030-CLIP which secures the no-legs cable to the board from behind, eliminating the hassle of the legs.  I haven't used it yet, but it appears to be a better solution (at least for what I do).

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Wow, I'd never heard of TagConnect. But I wanted something exactly like it. So I bought $10 worth of pogopins (50pcs), and drafted up a very quick 4 pin pad layout. My boards arrived today.   This

Ordering 6 of these, will send @@bluehash 5 of them after I confirm they work-     OSHpark gerbers: OSH_TC2030_eZFET_Adapter_v2_0.zip   DipTrace Schematic (PDF): DipTrace Schematic - TC2030_e

From the dozen or so uses of mine, it hasn't failed to connect once. The stainless guide pins seem suitable enough to protect the pogo pins from accidental bending. Can't say about the clip since I

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yes and no.  The extra holes required for the legs make it impossible to route traces to all the pads and stay within the specs supported by the low cost board houses (you have to use 6 mil traces and be <15mil from the drills).  I've also found that the legs are really stiff and difficult to get to [dis]engage without the help of needle nose...and they require you leave enough space surrounding the pad to get your fingers/tool on the cable to get it free.

 

As an alternative, there is this guy: http://www.tag-connect.com/TC2030-CLIP which secures the no-legs cable to the board from behind, eliminating the hassle of the legs.  I haven't used it yet, but it appears to be a better solution (at least for what I do).

I noticed the spacing issues too, although I managed to get it to work on my board with 0.2mm traces (7.8mils) without tripping the DRC.  I'll see soon how the legs are... hoping it's workable 'cause the board I have in mind won't have that much room behind it for fitting a pair of needle-nose.

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Interesting. I haven't gone below 12mil traces yet, but I should be able to do 8 without a problem. Happy to see what issues there are with legs on a home made board. I suppose worst case is that they could be removed.

 

@greeeg might be onto something with his clothes peg!

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Interesting. I haven't gone below 12mil traces yet, but I should be able to do 8 without a problem. Happy to see what issues there are with legs on a home made board. I suppose worst case is that they could be removed.

 

@@greeeg might be onto something with his clothes peg!

Fwiw, I did home-etching with 7 mils once, that's about as far as I'd take it... (it wasn't 100% success rate either, but I was fitting it between two pads)

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[2][mBeals][spirilis] http://www.tag-connect.com/TC2030-MCP-NL

[1][mBeals] http://www.tag-connect.com/TC2030-CLIP

[1][spirilis] http://www.tag-connect.com/TC2050-IDC-NL

[1][Fred]http://www.tag-connect.com/TC2030-IDC

[1][Fred]http://www.tag-connect.com/TC2050-IDC-430

 

Is it possible for you  @@Fred @@spirilis @@mbeals to reduce the selection. If not, no issues. I'll be pointing TagConnect here.

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As the 43oh standard seems to be settling on 6 pin and I've been advised against legs, I'd be more than happy to go with the same TC2030-MCP-NL as mBeals and Spirilis.

 

I've got an idea which may overlap with this, but I'll post about it separately.

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  • 1 month later...

I'm just adding some pin headers to my current project. Did anything ever happened about these?

 

 

I have a project using them and it seems to work (firmware not done yet though). I had bought one of the legged cables last month.

 

Sent from my Galaxy Note II with Tapatalk 4

I thought he had them shipped. I even mailed him your addresses as soon as they were with me. Let me ping him.

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Thanks. I know that things sent via USPS can take a while to get to the UK, but if nobody's got them then that's probably not it.

 

@@Fred Update. They shipped it to me today. Got a tracking no. I'll relay it to you guys.

 

wait....were we supposed to send you our addresses?  I must have missed that

Let me check if I have enough cables @@mbeals

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