NE555 Square Wave Output Pulse Module with Adjustable Frequency Patch LED 1-200KHz

Feature:
The output frequency or duty cycle square wave is adjustable.
Output with LED indication, when output low electrical level,the indicator will light on, otherwise, when output high, the led will be off. The indicator will flash when lower frequency.

Application:
Adjustable pulse generated for the use of MCU or controlling circuit.
For generating a square wave signal to drive a driver of stepper motor or use for experimental development.

Specification:
Mainly IC: NE555
VCC: DC input, positive power supply
GND: Functional earthing, negative power supply
OUT: output with high or low electrical level
Input Voltage: DC 5V - 15V
Input Current: more than 100mA
Output Current: more than 15mA (5V Power Supply and when V-PP more than 50% ); more than 35mA (12V Power Supply and when V-PP more than 50%)
Output Amplitude: 4.2V V-PP to 11.4V V-PP(value will change according to different voltage)