1Hz-150Khz 3.3V-30V Máy phát tín hiệu PWM mô-đun bảng mạch tần số xung mô-đun có thể điều chỉnh chu kỳ xung Màn hình LCD

parameter settings:
The module has 4 independent buttons to set the frequency and duty cycle. It supports short press (increase or decrease by one unit) and long press (rapid increase or decrease). It is very simple. The parameters are automatically saved after setting. Lost.

Module parameters:
1. Working voltage: 3.3~30V;
2. Frequency range: 1Hz~150KHz;
3.Frequency accuracy: the accuracy in each range is about 2%;.
4. Signal load capacity: the output current can be about 5~30ma;
5. Output amplitude: PWM amplitude is equal to the power supply voltage;
6.Ambient temperature: -20~+70C.

Scope of application:
1. Used as a square wave signal generator to generate square wave signals for experimental development;
2. Used to generate a square wave signal to control the 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).

Communication standard:
9600 bps Data bits: 8

Stop bit: 1
Check digit: none
Flow control: none
1, set the frequency of the PWM
"F101": Set the frequency to 101 HZ (001 to 999)
"F1.05": set the frequency of 1.05 KHZ (1.00 ~ 9.99)
"F10.5": Set the frequency to 10.5KHZ (10.0 ~ 99.9)
"F1.0.5": set the frequency of 105KHZ (1.0.0 ~ 1.5.0)
2, set the PWM duty cycle
"DXXX": set the PWM duty cycle to XXX; (001 ~ 100)
Such as D050, set the PWM duty cycle is 50%
3, read the set parameters
Send a "read" string to read the set parameters.

Set successfully return: DOWN;
Setup failed to return: FALL.