1Pcs Pulse LM358 NE555 Duty Cycle Frequency Adjustable Module Square Wave Ic rk
1,51 €
1Pcs Duty Cycle Frequency Adjustable Module Pulse Square Wave NE555 LM358 New Ic. The main chip: LM358. Produce the adjustable pulse for MCU use. A square wave signal is used to produce a stepper motor-driven drive.
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