5Pcs NE555 Duty Cycle Frequency Adjustable Module Pulse LM358 Square Wave Ic un
7,75 €
5Pcs LM358 NE555 Duty Cycle Frequency Adjustable Module Pulse Square Wave 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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