One SPI on Two Arduino Uno

Using Arduino Networking, Protocols, and Devices
#1

Dear All,

I have doubt related to SPI communication protocol. I have SPI device which is interfaced to Arduino Uno and the data are acquired.

Now what I want is, Is it possible to interface the same SPI device to another arduino Uno so that parallely both the arduino's can get the data and display in different screens.

I have done interfacing multiple SPI to single Arduino and thats working. But is the above said is possible??

If its possible please let me know how to proceed.. No google reference related to this.

Thanks in advance.:):):slight_smile:

#2

Now what I want is, Is it possible to interface the same SPI device to another arduino Uno so that parallely both the arduino's can get the data and display in different screens.

No. On an SPI bus only one master can exist, otherwise you produce short-circuits which might damage the complete setup.

#3