We finalized 6 new designs and sent off a box of PCBs. Several test a new header-less programming pad we’re working on.
We researched various feeder mechanisms for pick n place machines, and posted about them. Which also provided some material for app notes.
The protoboards received another update. We added mini USB B breakouts to all of them. We’re also working on a smaller header-less programing footprint for our boards.
Have you seen this alternative for a isp/icsp header? http://www.daniel-spilker.com/blog/2011/04/25/isptouch-for-avr-microcontrollers/
It’s using a spring loaded “solo stacker” connector – good for just flashing new firmware onto the board but a real pain if you need hook up the board for a longer In Circuit Debugging session…
No haven’t seen it, but seems very usable. we were a bit insprired by http://www.tag-connect.com/
Also found lots of nice little pogopins in shenzhen the last time we were there.
The legged version seems nice, but the holes oh the holes! They are so huge that you almost can fall thru them :-)
I have two suggestions for this proto board’s next revision.
1. Add a micro-USB footprint just in the opposite side of the mini-USB. It will be good addition.
2. Add a place to use SMD7050/3225/6035 crystal/oscillators.
micro USB on the other side is a nice idea :) thanks
Oh goodie! I suggested the USB somewhere else in another post, so I’ll give myself a little gold star for that LOL :D
I’m assuming that this holes around the outside of the QFP match your other QFP-Header boards, so that we could fit a different pitch QFP if necessary by using a daughter board?
Sorry, but 0.80mm QFP footprint has a wider distance, 0.5 and 0.65mm matches though
Well 0.65mm is handy too, looks like a useful board :)
Is this board likely to be available through Seeed and if so, could you give me an idea of when?
We are testing now, and it could be the next revision of the current protoboards in around 2 months.