And here it is working !

I finally had a chance to pull mine apart and get some pics. It's not the prettiest, but it works :-) It's an Arduino Uno, a custom shield I made from a prototyping shield, and then a fairly stock display. image004.jpg The modification to the display is it was using pins 8 and 9 for en and rs. That ...

Ok - so mine is running and logging ! It's a deltasol BS, ID's as a 427B, so I had to update the code for all the correct offsets for pump hours and system time.

I'll post some pics next time I have it apart.

Ok - rebuilt mine using Javalin's pic as reference. I had a real stupid mistake on mine which is why it didn't work (Output to analog on pin 1 of the LM339N, not pin 2!) It's now working...mostly. I'll need to wait for the sun to be out to make sure its getting motor speed, etc. Plus it didn't get ...

bbqkees : Looking at your original breadboard pic, I can't clearly see the colors. What size is the resistor between pins two and five ? I thought it should be 22k, which should be red-red-orange.

Looking at Javalin's picture I think I found my opps and plan to re-do it tonight...Thank you Javalin !
Just curious - in your final pic it looks like you have another analog line coming into the same ardunio. What is that from ?

bbqkees : How much do you want for one of the PCBs ?

Do you have any "extra" board, that want to sell? I still have not made them yet, no time. If you would order the components from Aliexpress/Ebay etc and buy a small breadboard it is not that hard to put it together. The schematic is quite simple: https://piamble.files.wordpress.com/2014/04/resol ...