What is the purpose of 8 metallized holes in the mounting pads (see picture)? Why are there 8 holes and not 4 or 6?
2025-04-27 00:46:47
Thanks for the answer. But I have more questions. Why are there no 8 holes in the DS3231M, Fermion: AS7341 (and so on) modules (see the pictures below)? If I understand correctly, the contact pads are only needed for mechanical fastening of the modules. If they were connected to the GND, then 8 holes would improve the electrical contact. But the contact pads are isolated from the circuit's radio components. Then why do we need 8 metallized holes at all?