2 Channel PWM Signal Generator Board Module Pulse Frequency Duty Cycle Adjustable DC 5-30V Micro USB 5V Power | Электроника

2 Channel PWM Signal Generator Board Module Pulse Frequency Duty Cycle Adjustable DC 5-30V Micro USB 5V Power | Электроника

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2 Channel PWM Signal Generator Board Module Pulse Frequency Duty Cycle Adjustable DC 5-30V Micro USB 5V Power
Description:
A. Module description
Two independent PWM outputs, the frequency and duty cycle can be set separately;
The frequency is divided into three ranges:
1. XXX (no decimal point): The minimum unit is 1Hz, and the value range is 1Hz~999Hz;
2. XX.X (the decimal point is in ten's place): the smallest unit is 0.1Khz; the value range is 0.1KHz~99.9KHz
3. X.X.X. (three digits have a decimal point): the smallest unit is 1Khz; the value range is 1KHz~150KHz
e.g. Frequency display: 100 means PWM output 100Hz pulse;
54.1 means that the PWM outputs a 54.1KHz pulse;
1.2.4. Indicates that the PWM output 124KHz pulse
Duty cycle value range: 0~100;
The three frequency ranges share a duty cycle, and all set parameters are saved after power-off.

B. The module has 3 buttons: Set, Up, Down;
1. By short pressing the "Set" key, the four parameter values are switched and displayed (FR1: PWM1 frequency; dU1: PWM1 duty cycle; FR2: PWM2 frequency; dU2: PWM2 duty cycle), there will be corresponding parameters before switching Name flashes prompt.
2. Directly press (Up), (Down) key to modify the current parameter value (long press to fast increase or decrease).
3. There are 3 frequency values preset for each of the two PWMs. In the frequency display interface, you can switch by long pressing the "SET: key once, and the duty ratios of the 3 frequencies are the same. (XXX: range 1Hz~999Hz; XX.X: range 0.1Khz~99.9Khz; X.X.X.: range 1Khz~150Khz,).

C. Scope of application:
1. Used as a square wave signal generator to generate square wave signals for experimental development and use;
2. Used to generate a square wave signal for driving a stepper motor driver;
3. Generate adjustable pulses for MCU use;
4. Generate adjustable pulses and control related circuits (applications such as PWM dimming and speed adjustment).

D. Serial port control
Communication standard: 9600 bps
Data bits: 8
Stop bit: 1
Check Digit: none
Flow control: none
1. Set the frequency of PWM
"S1FXXXT": Set the frequency of PWM1 to XXX HZ (001~999)
"S1FXX.XT": Set the frequency of PWM1 to XX.X KHZ (00.1~99.9)
"S1F:X.X.X.T": Set the frequency of PWM1 to XXX KHZ (0.0.1.~1.5.0.)
"S1": PWM1
"S2": PWM2
"F": frequency
"D": Duty cycle
"T": is the end flag
2. Set the duty cycle of PWM
"S1DXXXT": Set the duty cycle of PWM1 to XXX; (001~100)
"S2DXXXT": Set the duty cycle of PWM2 to XXX; (001~100)
Set successful return: DOWN;
Setting failure returns: FALL.

Feature:
1. Two independent PWM outputs, the frequency and duty cycle can be set separately;
2. Wide frequency range and high precision;
3. Serial communication

Specification:
Board size: 41*28mm thickness: 1.6mm
Working voltage: 5--30V support micro USB 5.0V power supply
Frequency range: 1Hz~150KHz
Frequency accuracy: The accuracy in each range is about 2%
Signal load capacity: the output current can be 8-30mA
Output amplitude: default 5V V-pp (can be changed by external power supply)
Ambient temperature: -30~+70℃

Note:
There may be slight size deviations due to manual measurement, different measuring methods and tools.
The picture may not reflect the actual color of the item because of different photographing light, angle and display monitor.

Packages:

1 X PWM Signal Geneator Board