10 STCK. NE555 Signalgenerator Modul Frequenz Arbeitszyklus einstellbare Quadratwelle
6,00 €
Main chip: NE555;. 10 PCS NE555 Duty Cycle and Frequency Adjustable Module Square Wave Rectangular Wave. Output with LED indication (low level ,LED will on; high level, LED will off; low frequency, the LED flashes);.
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