Seeduino lotus

Can used ports analog A6 and A7.
I write in arduino IDE, but can not read values.

Of course you can use it . Could you show your code and the data on the Arduino monitor?

Does the Stalker V3 which has a different board shape, without the corner cutouts and a little shorter than the V2.3 , fit in the plastic box you have been selling for V2.3?

Yes,

The size of Stalker V3 is 86.74mm x 60.96mm, and it can be put inside the plastic enclosure of V2.3 which is of dimensions 50 (H) x 68 (W) x 100 (D) (mm)

Thank you