Light flickering detector case

This device will convert light flickering into sound for quick detection. Can give quick idea if TV, phone and light bulbs are using low frequency PWM which can negatively affect eye strain.

Assembly notes

• 70x70 mm 5.5 V photocell

• PAM8403 sound amplifier

• 6 Ohm 1.5 W speaker

• MT3608 boost converter

• TP4056 Li-Ion battery charger

• 18650 Li-Ion battery

• Power switch