signal generator This DIY kit and shell can generate sine waves, triangular waves, and square waves with accurate output. Adjustable frequency and amplitude Frequency can be adjusted from 1 Hz to 1 MHz. Amplitude is adjustable as well. Five accuracy resolution Coarse and fine frequency adjustment options enable precise control over the signal output. Wide power supply range Compatible with external 912 V DC power supplies and with a 9 V battery, offering flexible power options. Practical use scenarios Electronics lab testing: generate standard waveforms to verify amplifier, filter, and sensor responses, or to characterize circuit behavior across a wide frequency range. Microcontroller and embedded development: provide known test signals for timing, PWM verification, or input signal conditioning during project development. Field debugging and portable work: use battery power for quick onsite signal generation without needing a fixed power source. Key attributes Function: produces sine, triangle, and square waves with adjustable frequency and amplitude. Compatibility: supports external 912 V DC supply or 9 V battery for flexible operation. Performance: wide frequency range (1 Hz to 1 MHz) with selectable coarse and fine resolution for precise control. Package: DIY kit with a shell, suitable for assembly and use in a compact form factor.