<p>➀ The article provides a step-by-step tutorial on building a function generator using the ICL8038 IC. This generator can produce square, sine, and triangular waveforms up to 100kHz.</p><p>➁ The core of the function generator consists of an oscillator that generates different waveforms, which are then shaped by wave-shaping circuits.</p><p>➂ The breadboard prototype demonstrates the functionality, with the sine waveform output captured on an oscilloscope.</p>