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Hello sir,

I am very much thankful to you for adding me.

Sir I wont you to ask that one of your project on LED dot matrix using arduino and bluetooth , I have made that and it works very well . But my question is that as we send the massage using bluetooth the last sent massage gets errased when ever there is power cut or reset of arduino.

I wont to now is there any solution on this that the last massage should be display not the initial massage i.e the last massage should be there on the display.

Thanking you
in Arduino by (170 points)

1 Answer

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You could save taht in the EEPROM of the chip using the EEPROM.write(addr, val)

and then use the EEPROM.read(addr, val)and get the data you saved. 

by (34.8k points)
how to use the command
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