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NE555 Duty Cycle Frequency Adjustable Square Wave Signal Generator Board Module by Envistia Mall sold2025 Kindly Note:Please do not useNE555 Duty Cycle Frequency Adjustable Square Wave Signal Generator Board Module by Envistia Mall This NE555 square wave pulse generator module can be used to produce square wave signals for experimental development or in applications such as driving stepper motors, and as an adjustable pulse generator for microcontroller (MCU) applications. Features an NE555 timer chip configured in four frequency ranges, 1Hz to 50Hz, 50Hz to 1kHz, 1kHz to 10kHz and
