I’m using a SparqEE Shield (see http://www.sparqee.com/portfolio/sparqee-shieldr/) and a SparqEE CELL (see http://www.sparqee.com/portfolio/sparqee-cell/) on top of my RaspberryPi since a I need to trasmit some big files to a server via 3G/UMTS.
But I also want to use a GrovePi+ to acquire data from some sensors now.
The GrovePi is stacked on the top on the SparqEE Shield and this actually works, but when I switch on the SparqEE CELL and start to transfer data via UMTS the RST led on the GrovePi+ lights up and the the Grove modules stop to work: i.e. reading analog or digital values from the Grove sensors always returns error.
This is not a problem to me, since data should not be transmitted continuosly, but as long as a file is transferred via UMTS I need to acquire data from the Grove sensors again.
I may even just reboot the Raspberry, but is there any way to soft-reset the GrovePi?
Is there any other way to use both the SparqEE Shield and the GrovePi?