KNACRO NE555 Pulse Module Square Wave Rectangular Wave Signal Generator Frequency Duty Cycle Adjustable DC5 15V Output Frequency 1Hz 50Hz 50Hz 1KHz 1KHz 10KHz 10KHz 200KHz Four Optional

Product parameters: Frequency Duty Cycle Adjustable Square Wave Signal Generator; Main chip: NE555 Working voltage: DC5-15V; Input current: ?100mA; Output range: 4.2V V-PP to 11.4V V-PP; Output current: 5V power supply V-PP greater than 50%, ? 15mA; Output current: 12V power supply V-PP greater than 50%, ? 35mA; Output frequency: 1Hz-50Hz, 50Hz-1KHz, 1KHz-10KHz, 10KHz-200KHz Four Optional PCB size: 37 * 33mm, thickness of 1.6mm; Weight: 10g. Features: 1. Output LED indicator,: low-level LED light, high-level LED off, the frequency is low when the LED flashes. 2. Output frequency range optional, the output frequency, duty cycle continuously adjustable: Low frequency: 1Hz-50Hz, Medium frequency: 50Hz-1KHz, Medium - high frequency: 1KHz-10KHz, High frequency: 10KHz-200KHz; On the control panel precision adjustable resistance VR1 is to adjust the duty cycle, VR2 to adjust the frequency; 3. Output frequency range adjustable: Period T = 0.7 (RA + 2RB) C; VR1 on the board, VR2 is 0-10K precision adjustable resistance; Low frequency C = 102 (0.001UF); Medium frequency C = 104 (0.1UF); Medium - high frequency: C = 105 (1UF); High frequency: C = 100UF. Capacitive capacity determines the frequency range, the user can calculate the adjustment according to their own needs. Package Included: 1*NE555 Pulse Module