ماژول سیگنال ژنراتور PWM سه کاناله به همراه نمایشگر

3 way signal generator
LCD can display frequency and duty data, easy to upgrade
Output of three channel PWM at the same time, adjustable frequency, 3 channel frequency output consistent, duty ratio can be adjusted independently, suitable for most occasions
Specifications
1. Operating voltage3.3~30V;
2. Frequency range 1Hz ~ 150KHz;
3. Frequency accuracy: In each range of accuracy is about 2%
4. The load capacity of the signal: The output current can be around 5 ~ 30ma
5. Output amplitude: PWM amplitude and power supply voltage equal
6. Ambient temperature: -20 ~ +70 °
Description
Three-channel PWM is carried out, wide frequency range and the duty ratio can be adjusted independently
Frequency is divided into four areas, automatic switching:
1.XXX (No decimal point): 1HZ step unit, range: 1Hz ~ 999Hz;
2.X.XX (The decimal is in the hundreds place): 0.01 KHZ Stepping Unit, Range: 1.00 Khz ~ 9.99 Khz;
3.X.XX (the decimal is in the tens place): 0.1 KHZ step unit, range: 10.0 Khz ~ 99.9 Khz;
4.XXX (the decimal is in the only place):1KHZ step unit, range: 1Khz ~ 150Khz;
E.g. Frequency display: 100 represent the pulse of 100Hz;
1.01 represent the pulse of 1.01 KHz;
54.1 represent the pulse of 54.1KHz
1.2.4 represent the pulse of 124Hz
The value range of duty factor: 0 ~ 100%,100% is represented by A0%.
All parameters set up can be saved automatically in case of power failure.
Parameter Settings
Module has 8 independent keys, used to adjust the frequency and duty ratio, support short press (increase or decrease one unit) and long press (rapid increase or decrease), very simple, set the parameters automatically save, power loss.
3-way duty ratio button can be pressed at the same time, real-time adjustment, liquid crystal display is the last pressed button duty ratio, real-time is very strong, can be used as a simple multi-way task scanning.
Application
Used as a square wave signal generator to generate a square wave signal for experimental development;
Used to generate a square wave signal that controls the motor driver;
Generate adjustable pulses for use by the MCU ;
Generate adjustable pulses and control related circuits ( applications such as PWM dimming speed regulation).
serial port control (microcontroller TTL level communication)

1. set the frequency of the PWM
“F101″: Set frequency of 101 HZ (001 ~ 999)
” F1.05″: Set frequency from 1.05 KHZ (1.00 ~ 9.99)
“F10.5”: Set frequency from 10.5 KHZ (10.0 ~ 99.9)
“F1.0.5”: Set frequency of 105KHZ(1.0.0 ~ 1.5.0)
2. set the input ratio of PWM
“DX:YYY”: Set the PWM ratio x: (1 ~ 3) PWM serial number, YYY: (000 ~ 100) input ratio;
For example, d1:050, set the 1st PWM input ratio to 50%
3. Read Setup Parameters
Send a “read” string to read the setup parameters.
Message format: F156,D1:052,D2:059,D3:058,
Set a successful return: DOWN
Set cannot be returned: FALL
Size: 5.49×3.76cm/2.17×1.50inch