Jayson’s Status Report for 3/14/2026

This week I completed assembly and initial testing of the 555 timer interrupter circuit with audio modulation capability. I soldered all components including the duty cycle potentiometer, timing capacitors, and the 3.5mm audio jack with DC blocking capacitor. During unit testing with the oscilloscope at TechSpark and the 220 lab, we discovered the interrupter frequency range stays on target in the expected 20kHz+ range, however the duty cycle is running too high with the minimum duty cycle at 40%. This needs to be corrected for proper audio modulation. Next week I’ll debug the interrupter circuit to adjust the duty cycle range down to the designed specifications, then work with the team to complete full system integration testing.