1Pcs NE555 LM358 Duty Cycle Frequency Adjustable Module Square Wave Pulse New lq
2,89 €
1Pcs LM358 Square Wave Duty Cycle Frequency Adjustable Module Pulse NE555 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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