Microcontroller, electronic circuit board, integrated chip, CPU core, memory module, input/output interface, serial communication port, crystal oscillator, power management unit, analog-to-digital converter, digital-to-analog converter, programmable logic device, breadboard prototype, laboratory workbench, cluttered wires, multiple LEDs, USB connector, 45-degree angle, close-up shot, shallow depth of field, bright white background, softbox lighting, high-contrast color scheme.