Designed and assembled a 555 timer circuit at 500 Hz with a 60% duty cycle to drive four LEDs, observing noise and brightness changes.
This board demonstrates how PCB layout choices affect switching noise, contrasting good and bad practices to show their impact on noise and signal integrity.
Board 3 is a custom "Golden Arduino" PCB designed to optimize noise performance and reduce electromagnetic interference. The project focuses on applying best design practices to achieve better performance than commercial Arduino boards.
Board 4, also known as the Instrument Droid, is a four-layer PCB built to test and analyze voltage sources or Voltage Regulator Modules (VRMs). It measures the Thevenin voltage and resistance of these sources by using a controlled electronic load to draw current and calculate key electrical values like voltage drop and internal resistance.