Description
- Brand Name: YUN TUDIO
- Origin: CN(Origin)
- Condition: New
- Type: Logic ICs
- Application: Computer
- Operating Temperature: 0-85
- Supply Voltage: 3-5v
- Dissipation Power: 1w
- Package: TQFP
- is_customized: Yes
PWM pulse frequency adjustable duty cycle square wave module rectangular wave signal generator XY-LPWM
PWM pulse frequency adjustable duty cycle square wave module rectangular wave signal generator XY-LPWM
Module Highlights:
1.LCD frequency and duty cycle liquid crystal display, clear, PWM outputs, can set the frequency and duty cycle, respectively;
2. The wide frequency range, high accuracy;
3. The serial communication can be
First, module description
PWM output, the frequency may be provided separately, the duty ratio;
Frequency range is divided into four, automatic switching:
1.XXX (without decimal point): the smallest unit is 1Hz, in the range 1Hz ~ 999Hz;
2.X.XX (one hundred decimal point) is minimum unit 0.01Khz, ranging 1.00Khz ~ 9.99Khz;
3.XX.X (ten in decimal): minimum unit is 0.1kHz; range 10.0KHz ~ 99.9KHz
4.X.X.X (decimal in ten and one hundred): minimum unit is 1Khz; range 1KHz ~ 150KHz
e.g. frequency display: 100 indicates that the PWM output pulse of 100Hz;
1.01 represents the PWM output pulse 1.01K;
54.1 represents the PWM output pulse 54.1KHz;
1.2.4 indicates that the PWM output pulse of 124KHz;
Duty cycle in the range: 0 to 100%;
All setup parameters, power-down save.
Second, the parameter settings
Module has four separate buttons, to set the frequency and duty cycle, short press support (increase or decrease by one unit) and a long press (rapid increase or decrease), simple, setting all the parameters are automatically saved, non-volatile .
Third, the module parameters:
1. Working Voltage: 3.3 ~ 30V;
2. Frequency range: 1Hz ~ 150KHz;
3. The frequency accuracy: in each range accuracy is about 2%;
4. Load capacity signal: output current of about 5 ~ 30ma;
The output amplitude: PWM amplitude equal to the supply voltage;
6. Ambient temperature: -20 ~ + 70 °.
Fourth, the scope of application:
1. As square wave signal generator generating a square wave signal used for experimental development;
2. The square wave signal for generating the motor control driver;
3. adjustable pulse is generated for use by MCU;
4. The adjustable pulse is generated, the control-related circuit (PWM dimming control and other applications).
Fifth, the serial port control (MCU TTL level communications)
Communication Standard: 9600 bps Data bits: 8
Stop bits: 1
Parity bit: none
Flow control: none
1, the PWM frequency
“F101”: Set the frequency of 101 HZ (001 ~ 999)
“F1.05”: Set the frequency of 1.05 KHZ (1.00 ~ 9.99)
“F10.5”: Set the frequency 10.5KHZ (10.0 ~ 99.9)
“F1.0.5”: Set the frequency of 105KHZ (1.0.0 ~ 1.5.0)
2, the PWM duty ratio
“DXXX”: Set the PWM duty cycle is XXX; (001 ~ 100)
For example D050, set the PWM duty ratio is 50%
3, reads the set parameters
Send “read” string read parameter settings.
Setting successful return: DOWN;
Setting failback: FALL.