The NE555 adjustable pulse frequency generator module is a device that can generate a pulse waveform with a variable frequency. It uses the NE555 timer IC, which is a versatile and widely-used IC that can be configured to produce a range of different pulse waveforms. The module typically includes an on-board potentiometer that can be used to adjust the frequency of the pulse waveform. The pulse waveform can be used for a variety of purposes, such as driving motors, flashing LEDs, and generating tones. The module can be controlled using a microcontroller or other device that sends signals to the module to start and stop the pulse waveform and adjust the frequency.

An adjustable frequency generator using the 555 Timer IC.

• Onboard NE555 IC
• Single channel signal output, with the output duty cycle about 50% square wave
• Plate load resistor: adjust the resistance to control the output frequency
• Onboard power led