LinkMejor NE555 Square Wave Output Pulse Module with Adjustable Frequency Patch LED

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: NE555VCC: DC input, positive power supplyGND: Functional earthing, negative power supplyOUT: output with high or low electrical levelInput Voltage: DC 5V - 15VInput Current: more than 100mAOutput 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)Hole Pitch: 17 mm / 0.67 inch (L*W)Overall Size: 31 x 22 x 16 mm / 1.22 x 0.87 x 0.63 inch (L*W*H)Adjustable Frequency(with short circuit cap):The formula is as follows: T=0.7(RA+2RB)C (0-10K Ohm adjustable for RA,RB)1-50Hz Position, C=0.001UF50-1KHz Position, C=0.1UF1K-10KHz Position, C=1UF10K-200KHz Position, C=100UFPackage Content:1 x Module Board