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# Oscilloscope Serial
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A simple oscilloscope application that reads the values at serial port generated by an Arduino board and based on the value of the analog pin A0
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< i > Main window< / i > < br > < br > < / p >
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< p align = "center" > < img src = "./images/img2.png" width = "300" > < br >
< i > Settings< / i > < br > < br > < / p >
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It is optimized for AVR ATmega MCUs with 13μs sampling resolution. For other boards the resolution is 200μs
Flash _oscilloscope_ . In the Oscilloscope app configure the serial port. By default 1000000bps, 8bits, no parity, 1 stop bit and no flow control. Interval is 13μs for AVR ATmega and 200μs for other MCUs
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You can connect any signal up to 5 volts to the analog pin A0. For signals over 5V a voltage divider is needed.
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For ATmega boards it is defined a PWM signal at pin OC1B. To test the Oscilloscope app connect pin OC1B to pin A0
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Adjust PWM signal with PWM_FREQ and PWM_DUTY. Default is 100Hz, 50% duty.
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Pin OC1B location:
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- Uno: pin 10 (PB2)
- Leonardo: pin 10 (PB6)
- ATmega2560: pin 12 (PB6)
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Find binaries [here ](https://github.com/dgatf/Oscilloscope/tree/main/binaries )
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Or build from sources:
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- install qt
- cd to src/qt folder
- qmake
- make
