3 Stück NE555 Pulsfrequenz Einschaltdauer Einstellbares Modul Rechtecksignal EU
3,16 €
Main chip: NE555;. 3Pcs Square Wave Duty Cycle Adjustable Module Signal Generator Pulse Frequency. 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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