I’ve been working on a next revision board. Details at https://github.com/neilh10/SensorModbusMaster/tree/release1/hardware/knh002-MayflyWingShield
I don’t have any time frame on availability due to the world wide shortage of parts, but probably third quarter this year. It will be an order before hand build so good timing if you are thinking of getting some.
I have hand built some for testing, and now have them testing on a system with a Keller Acculevel /0.28.3
I’ve got it on my list to do more write up.