NE555 Duty Cycle Frequency Adjustable Module Square Wave Pulse Signal Generator For Sale

NE555 Duty Cycle Frequency Adjustable Module Square Wave Pulse Signal Generator


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NE555 Duty Cycle Frequency Adjustable Module Square Wave Pulse Signal Generator:
$1

NE555 Duty Cycle Frequency Adjustable Module Square Wave Pulse Signal Generator

Description:

This module is a square and pulse generator with adjustable frequency and duty cycle. It can be used in the laboratory where the square wave signal is needed, the pulse signal needed by the stepping motor drive plate, and the pulse generator and so on needed by the maintenance master.
1, the main chip: TI original NE555 time base integrated IC, operating voltage 4.5V ~ 12V, 5V power supply, the output current can be about 15MA; 12V power supply, the output current can be about 35MA;
2, the frequency adjustment: the use of two 50K adjustable resistance to adjust the frequency;
3, six file frequency range: the use of pin short-circuit selection of six different capacity of the capacitor to change the frequency range, respectively (in Hz) 0.1 ~ 4,1 ~ 40,10 ~ 400,100 ~ 4K, 1K ~ 40K , 10K ~ 400K;
4, with a LED indicator, indicating the pulse change (low level light), but also as a power indicator light;
5, the interface using the terminal or pin mode, the user can choose to buy;
6, board size: 38.5mm * 26mm, with 4 3MM diameter of the fixed hole;

Instructions for use:

R1 adjust the high level of the occupancy range of about 50% to 98%, R1 higher the higher the duty cycle of the higher frequency range will be reduced, so the duty cycle is not demanding, R1 is equal to 0 ;
R2 as the main frequency adjustment potentiometer, R1 as a high level duty cycle fine tuning;
The general use is R1 = 0 (transferred to the minimum, the duty cycle of about 50%) to R2 to adjust the frequency;

Package included:

1*Adjustable NE555 Pulse Square Wave Signal Generator Stepper Motor Driver


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