It is very easy to generate tones with the ZDev library and the ZKit-51. This project shows how to generate tones of various frequencies using the PWM controller.
Theory & Design
Tones can be generated by rapidly toggling the pin connected to the buzzer. Alternatively, the on-chip PCA (Programmable Counter Array …
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There are variety of user input devices for embedded systems, like buttons, switches, knobs, sliders, etc. Sliders are most commonly used for volume controls. This project shows how to interface a slider to the ZKit-51, and how to use it as an input device.
Theory & Design
Slider is a resistor …