3Pcs NE555 Signal Generator Frequency Pulse Square Wave Duty Cycle Adjustable zb
3,08 €
3Pcs Duty Cycle Adjustable Module Pulse Signal Generator Frequency NE555 Square. 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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