In the document “Product Technical Specification & Customer Design Guidelines Rev 8.3” for SL808x modules there is the device pinout presented on page 34, figure 10. Is this picture a top through view or a bottom view of the device?
It is clearly stated that pins marked RESERVED-DNC must be left unconnected. What about NC pins? I guess NC pins have no internal connection. So, they can be left floating or connected to ground, right?