Turn-key PCB assembly services in prototype quantities or low-volume to mid-volume production runs

Being smarter with minimal AVR development board

Sometimes simplest ideas work best. If you like prototyping a lot, then you know, that building complete circuits on a breadboard can be pain. If your projects include microcontroller like AVR this part is always the same – micro and programming header. It may be OK if part is through hole, but if it’s in SOIC package. Baoshi found a simple solution to this routine. He used common 28 pin SOIC/SSOP to DIP adapter and soldered microcontroller here. Then on remaining pads he soldered ISP header on top. Of course he had to bend legs to make it fit on surface. Since there is another SMT footprint on bottom, here he could electrically connect programming header to corresponding programming pins. This way without significant investment, he made robust module, that can be plugged to breadboard and used right away. As someone suggested, there are still place for decoupling cap and probably other support circuits. Great idea and time saver. Continue reading

Handy Attiny2313 breadboard module

Prototyping on a breadboard is a fast way to put up a circuit. Despite the fact that more and more components come in SMT packages breadboards are actively used. Microcontroller hobbyists probably always find themselves in situation where they assemble same MCU part over and over again. This is a waste of time. So why not make a breadboard module which may be plugged in stay focused on real issues related to project. johngineer designed pretty handy Attiny2313 breadboard module which frees from repetitive microcontroller assembly part but also solves power problems as it already has a voltage regulator. Module like no others mounts on breadboard power rails that are on a side and leaves most of space unoccupied for prototyping. So if you do lots of projects based on Attiny2313 or Attiny4313 add to your to do list. Continue reading