KNACRO NE555 Pulse Module Square Wave Rectangular Wave Signal Generator Frequency Duty Cycle Adjustable DC 5V-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