Oscillograph with 1.8" TFT

With the TFT library comes the example sketch TFTGraph which shows the signal connected to analog input A0. But even if you remove the delay(16) it still is rather slow due to the fact that each value is written to the screen immediately after reading and the complete screen is erased after the right margin of the screen is reached.

If you omit these time-consuming tasks you get a much faster display.

Download the source

If you want to connect a microphone to your arduino have a look at my amplifier .

contact: nji(at)gmx.de