Adapters / Breakout boards

I did a test assembly. The potentiometer is not the right kind (wrong package and wrong resistance range), but it works ;-) It can easily be used with the arduino ' shiftPWM ' library. Up to 100mA per channel if you keep an eye on the chip temperature. Made with KiCad .

I did a test assembly. The potentiometer is not the right kind (wrong package and wrong resistance range), but it works ;-) It can easily be used with the arduino ' shiftPWM ' library. Up to 100mA per channel if you keep an eye on the chip temperature. Made with KiCad .

I shouldn't be able to say this, but I AM surprised how small these traces actually are. I will need to use a magnifier to be able to cut them - if the blade is narrow enough...

Not tested yet...

Today I built this one with through-hole components. I chose to make the common-anode variant only, as I'll be using it with a constant-current LED driver for testing code. The SMD version can be used in either common anode or cathode configuration.

Today I built this one with through-hole components. I chose to make the common-anode variant only, as I'll be using it with a constant-current LED driver for testing code. This SMD version can be used in either common anode or cathode configuration.

Anything is possible with good paste flux!

I had to file down the friggin' headers again... You have to love those 29.5mil holes. I'll have to get machined headers with round pins. And if these don't fit... I'll turn into a gamma flash.

Initially I had put these bridge-pads on there to select which pins are + and - and connect capacitors to them. Today I used this board with an MCP1804-SOP23-5 voltage regulator. I had everything plugged in and was in need of another GND pin. Not just the one going to the chip, bot one going to the load. Thanks to these jumpers I could use the unused pin #5 (top row in the middle) and just bridge it to GND. I need more of these little moments!

The boards are scored. I didn't explicitly order it that way, but they snap off very easily. At first glance I didn't see the grooves, so that was a positive surprise! I had already thought about using the mini mill to cut these out. Pure horror. I probably would have had to use a 0.5 or even 0.3mm tungsten carbide mill, and these break very easily.

I'll test this board with an MBI5030 LED driver - or so I thought. The MBI5030 comes in an SO package alright, but with 1.00mm pin pitch. This adapter is for 1.27mm pitch. DOH!

If I had a precision lathe, I would try to make a sleeve to cover the weak spot. Solder will have to do the job for now.