PWM Pulse Frequency Adjustable Square Wave Rectangular Wave Signal Generator

Description:

The frequency of the LCD screen and the service cycle, very clear, the PWM output can be adjusted to the frequency and service cycle
Wide frequency range, high precision
Serial communication, TTL level
PWM output, you can configure the frequency, the service cycle
The frequency is divided into four ranges, automatic switching:
1. XXX (without decimal point): The smallest unit is 1Hz, the value range is 1Hz 999Hz;
2 X XX (the decimal point in one hundred) the smallest unit is 0.01 kHz in the range of 1.00 kHz ~ 9.99 kHz;
3. XX. X (decimal point in ten): The smallest unit is 0.1 kHz; Value range of 10.0 kHz 99.9 kHz
4. X.X.X (decimal point in ten and one hundred): The smallest unit is 1 kHz; Value range 1 kHz 150 kHz
Frequency display: 100 indicates pulse PWM output Hz 100;
1.01 indicates pulse PWM output of 1.01 K;
54.1 indicates that the PWM output has a pulse of 54.1 kHz;
1.2.4 indicates that the PWM output is 124 kHz;
Service cycle range: 0 100%;
All parameters set, automatically saved shutdown.
The module has four independent keys, used to set the frequency and service cycle, supports touch (increases or decreases a unit) and long press (fast increase or reduction), configures the parameters automatically, do not lose the power.

Specification:

Material: Plastic
Size: 79x43x25mm/3.11x1.69x0.98inch
Operating voltage: 3.3 30V;
Frequency range: 1Hz 150 kHz;
Frequency accuracy: The accuracy in each range is about 2%;
Signal load capacity: the output current can be about 5-30 mA;
output amplitude: PWM amplitude equal to the supply voltage;
Ambient temperature: -20 + 70.
Scope of application:
Used as a square wave signal generator, generates square wave signal for development and experimental use;
It is used to generate a square wave signal that controls the motor controller;
Generate an adjustable pulse for the use of MCU;
Generates an adjustable pulse, controls the corresponding circuit (attenuation speed PWM and other applications).
Serial control (Single-chip TTL level communication)
Communication standard:
9600 bits of bps data: 8
Stop bit: 1
Digit: None
Flow control: none
Adjust the PWM frequency
"F101": the frequency of 101Hz (001 to 999)
"F1.05": the frequency of 1.05 kHz (1.00 ~ 9.99)
"F10.5": the frequency at 10.5 kHz (10.0 ~ 99.9)
"F1.0.5": the frequency of 105 kHz (1.0.0 ~ 1.5.0)
Sets the PWM duty cycle
"DXXX": the service cycle PWM to XXX; (001 ~ 100)
As D050 of the PWM service cycle is 50%
Read the parameters of the set
Send a string of "read" to read the parameters of the set.
Set the correct return: below;
The configuration could not be returned: fall.

Package Includes:

1 Piece Signal Generator PWM