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battery-powered systems (like Arduino or Raspberry Pi)
3D printer and other projects
The LDR sensor module detects light and measures how bright it is
MQ-4 Natural Gas sensor
IoT safety
NE555 Pulse Frequency Duty Cycle Adjustable Module Filaments battery-powered systems (like Arduino orNE555 Pulse Frequency Duty Cycle Adjustable Module NE555 Pulse Frequency Duty Cycle Adjustable Module Square Wave Signal Generator is 5 V square wave signal generator. It generates a square wave signal used for experimental development. Also, use to drive a stepper motor for generating a square wave drive signal. The output duty cycle can fine tune. Duty cycle and frequency is not separately adjustable, adjusting the duty cycle will change the
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