1 STCK. NE555 Signalgenerator Quadratwelle Pulsfrequenz einstellbares Modul
3,74 €
2, the main chip: NE555;. 1X NE555 Module. 3 generate adjustable pulse for MCU use. 2 to generate a square wave signal to drive the stepper motor drive. 2, the output frequency range optional (with a short circuit cap set on the choice), so that the output frequency is more continuous adjustable;.
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