Yesterday I received my first batch of custom printed circuit boards. 
 These are actually the 3rd set of boards that I have ordered, but I paid for premium shipping for them. The first 2 orders were made almost a week before these, and haven’t arrived yet. I’m testing to see how long the various shipping methods take. I’ll post the results once all 3 shipments arrive.
These boards mount directly behind the 4-switch wall switches used in my RV. Each can support up to 4 PWM LED driver circuits plus bluetooth and RF24 radios.
I plan on installing a few of these during my holiday time off.