The Soundcard Oscilloscope is useful electronics software for student and electronics hobbyist. Like visual analyzer, the software use PC Soundcard as main hardware. The software receives its data from the Soundcard with 44.1kHz and 16 Bit resolution.
The project uses Direct Digital Synthesis to generate sine, triangular and square waves in the range of 1 Hz to 150 KHz with 1Hz resolution. The frequency can be set through 16 switch numeric keypad or rotary shaft encoder (fine adjustment) and is displayed on a backlight numeric LCD module, Varitronix LCD module VIM-808. [...]
The goal of this PIC 16F870-based project is to build simple function signal generator that can produce multi waveforms like sine, square, triangle, and saw burst sweep noise. The project uses R/2R resistor ladder network for a real fast and cheap D/A and a few other parts.
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