- High-precision signal generator for DIY electronics. It can output sine waves, triangular waves, and square waves. Frequency range 1 Hz to 1 MHz with adjustable amplitude, suitable for a wide range of tests. - Five accuracy levels with coarse and fine adjustments provide precise control of the frequency setting. - Flexible power options: 9-12 V external power supply or a 9 V battery, enabling bench use and portable field work. - Simple installation and debugging: minimalist design with a small number of components and capability for direct insertion, making setup quick and straightforward. - Key attributes: compact, reliable performance across the full frequency range, and compatibility with standard test and measurement workflows. - Use scenarios: - Bench testing and prototyping of analog and digital circuits, including microcontroller peripherals and sensor interfaces. - Calibration and verification of oscilloscopes, data acquisition systems, or other signal-responsive equipment. - Educational demonstrations and DIY projects, with portable operation from a 9 V battery.