3 Stück NE555 Pulsfrequenz Einschaltdauer einstellbares Modul Rechtecksignal hb
3,22 €
3Pcs Square Wave Duty Cycle Adjustable Module Pulse NE555 Signal Generator. Main chip: NE555;. Generate adjustable pulse for MCU. Output with LED indication (low level,LED will on; high level, LED will off; low frequency, the LED flashes);.
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