Im trying to interface this Grove Shield with a TinySine wifi shield.
I would think that a schematic of what each pin in the Grove Shield does, would allow me to piggyback a 3rd board (TinySine Wifi) over it, and that the data from that 3rd board would somehow reach the UNO, if and only if, those pins required by the top board are not being used by the middle board.
Is that wrong?
Here is the Grove pinout, the tinysine pinout and my idea...
According to TinySine pinout, if the shield is on Normal/MCU/SoftSerial, then it is using pins D2 & D3.
I would believe this means the data going out through the header pins is going out via D2 & D3.
Am I wrong to think that since the Grove shield only uses pin 8, and the tinysine only uses pins 2&3, then my communication should work?
