Ive connected the Grove Shield to the UNO and the WiFi to the UNO.
Due to their size (height), If I want to connect all 3 of them together, the UNO must go on the bottom, Grove in the middle and WiFi on top. So far i have only tried piggybacking them separately; the Grove on the UNO (works perfectly) and the WiFi on the UNO (works perfectly).
Now I need to combine all 3. Im wondering how to determine whether the wifi would interfere with the Grove shield.
For that I would need to know what pins the Wifi uses to communicate with the UNO and thus make sure they are NOT used by the Grove shield.
So far my WiFi sketch creates a software serial on 2,3.
According to this link:
http://www.seeedstudio.com/wiki/Grove_-_Base_shield_v2
The shield uses pins 2 & 3 when using the digital connectors D2 & D3. But that leaves me with only connectors D4, D5, D6, D7 & D8, which is enough for 5 sensors. I have 6 in mind for my project.
So Im wondering what to do to work around this?