Function and versatility: This ICL8038 function signal generator module can output sine, triangular, and square waves, providing options for a wide range of DIY projects. performance chip: The ICL8038 is a capable singlepiece function signal generator IC that delivers solid performance with only a small amount of resistance elements needed to produce accurate sine, triangular, and square waves. Wiring cautions: The resistance elements used in this module are nondirectional but may have different resistance values. Please carefully identify and solder them correctly, and ensure proper alignment of the positive and negative terminals during wiring. Easy and safe to use: Clear labeling on the PCB helps you identify and connect wires correctly. The module operates from a 12V power supply and supports a frequency range of 505kHz, adjustable via the included switch S. Welding guidelines: The recommended welding temperature is 320380°C. Follow the correct welding : start from low to heat, small to large components, and inside to outside. Welding time should be about 35 seconds to achieve a proper connection without overheating. Use scenario: Build and test analog oscillators or audiorelated circuits by generating stable sine, triangle, and square waves for tone generation or signal shaping. Use scenario: Calibrate RC networks, filters, and timing circuits in microcontroller or sensor projects using controlled waveform signals. Use scenario: Educational demonstrations in classrooms or maker spaces to illustrate waveform shapes, frequency control, and the behavior of the ICL8038based signal generator.