You can buy a breakout module on aliexpress for around $5.00. I considered just using those, but I soon ran into a spaghetti tangle of wires connecting power, sensors, programming pins and whatever else. I also found, to my annoyance, that each company sells a different breakout. I have multiple versions of le1's. Each one has different pinouts. It is impossible to reliably replicate things. One supplier might disappear and I'll be left figuring out some new board. And, they all come with 1.27mm headers which is very inconvienent to work with.
Also, I want to design a board from start to finish. Just to do it and see it work.