precision signal generator for DIY projects. This device can produce sine waves, triangular waves, and square waves with precision. Frequency range is 1 Hz to 1 MHz, and the output amplitude is adjustable. Five accuracy resolution settings. Provides coarse and fine frequency adjustments through five accuracy levels for precise control. Flexible power options. Operates from an external 912 V DC power supply or a 9 V battery, offering versatility for bench testing or onthego use. Simple installation and debugging. Designed with directinsert components, requiring minimal parts and enabling easy installation and straightforward debugging. Practical use scenarios. Calibrating and testing signal paths, ADCs, and DACs in lab setups. Verifying microcontroller PWM outputs, timers, and basic audio electronics. Prototyping and validating electronics projects in educational or hobbyist environments.