hello 
I want to use the code ferduino without the network card I used the code without the web control 
I put the SD card into the slot TFT but I do not see the graphs I do not see the purple line in the graph
what can I do? 
thanks
            
                        
                        
                        







const byte ChipSelect_SD = 4;
const byte SelectSlave_ETH = 53;
const byte ChipSelect_SD = 53;
const byte SelectSlave_ETH = 4;
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