A solicitação
“A 5 V astable LED flasher using two NPN transistors, two 22 kΩ base resistors, two 1 kΩ LED resistors, two LEDs and two 10 µF cross-coupled capacitors.”
Depois, tenteChange both capacitors to 47 µF.Add a power switch.
O que há neste desenho
Entenda as decisões por trás dele.
01
Use NPN transistors with collector LEDs and cross-coupled capacitors.
02
Set RC time constants for roughly 1 Hz flashing.
When you need a simple, low-frequency oscillator for visual indication or timing.