Hi Sparkies, I'm using the Uno as a data logger and looking to create two, 256 element arrays with data type float: float sensorData[256]; Since I each float data type is 4 bytes, the space in SRAM used is: 4256(2)=2048 bytes, (I think), which maxes out the available space for any other variable …

Is flash memory on ATMega328 totally erased with new Sketch load?

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