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THE PWM SIGNAL GENERATOR WITH SCREEN CAN GENERATE A SQUARE WAVE SIGNAL FOR EXPERIMENTAL DEVELOPMENT THAT INVOLVES PWM DIMMING AND SPEED CONTROLLING. IT CAN BE CONTROLLED VIA THE SERIAL PROTOCOL TTL (TXD & RXD PINS). VOLT: 3.3 - 30 VDC. FREQ: 1HZ – 150 KHZ [BDD PWM SIGNAL GEN+DISP 0-150KHZ]
THE PWM SIGNAL GENERATOR WITH SCREEN CAN GENERATE A SQUARE WAVE SIGNAL FOR EXPERIMENTAL DEVELOPMENT THAT INVOLVES PWM DIMMING AND SPEED CONTROLLING. IT CAN BE CONTROLLED VIA THE SERIAL PROTOCOL TTL (TXD & RXD PINS). VOLT: 3.3 - 30 VDC. FREQ: 1HZ – 150 KHZ [BDD PWM SIGNAL GEN+DISP 0-150KHZ] THE PWM SIGNAL GENERATOR WITH SCREEN CAN GENERATE A SQUARE WAVE SIGNAL FOR EXPERIMENTAL DEVELOPMENT THAT INVOLVES PWM DIMMING AND SPEED CONTROLLING. IT CAN BE CONTROLLED VIA THE SERIAL PROTOCOL TTL (TXD & RXD PINS). VOLT: 3.3 - 30 VDC. FREQ: 1HZ – 150 KHZ [BDD PWM SIGNAL GEN+DISP 0-150KHZ] THE PWM SIGNAL GENERATOR WITH SCREEN CAN GENERATE A SQUARE WAVE SIGNAL FOR EXPERIMENTAL DEVELOPMENT THAT INVOLVES PWM DIMMING AND SPEED CONTROLLING. IT CAN BE CONTROLLED VIA THE SERIAL PROTOCOL TTL (TXD & RXD PINS). VOLT: 3.3 - 30 VDC. FREQ: 1HZ – 150 KHZ [BDD PWM SIGNAL GEN+DISP 0-150KHZ] THE PWM SIGNAL GENERATOR WITH SCREEN CAN GENERATE A SQUARE WAVE SIGNAL FOR EXPERIMENTAL DEVELOPMENT THAT INVOLVES PWM DIMMING AND SPEED CONTROLLING. IT CAN BE CONTROLLED VIA THE SERIAL PROTOCOL TTL (TXD & RXD PINS). VOLT: 3.3 - 30 VDC. FREQ: 1HZ – 150 KHZ [BDD PWM SIGNAL GEN+DISP 0-150KHZ] THE PWM SIGNAL GENERATOR WITH SCREEN CAN GENERATE A SQUARE WAVE SIGNAL FOR EXPERIMENTAL DEVELOPMENT THAT INVOLVES PWM DIMMING AND SPEED CONTROLLING. IT CAN BE CONTROLLED VIA THE SERIAL PROTOCOL TTL (TXD & RXD PINS). VOLT: 3.3 - 30 VDC. FREQ: 1HZ – 150 KHZ [BDD PWM SIGNAL GEN+DISP 0-150KHZ]

LCD Display Frequency and Duty Cycle

Frequency Duty Cycle LCD Display

BDD PWM SIGNAL GEN+DISP 0-150KHZ
THE PWM SIGNAL GENERATOR WITH SCREEN CAN GENERATE A SQUARE WAVE SIGNAL FOR EXPERIMENTAL DEVELOPMENT THAT INVOLVES PWM DIMMING AND SPEED CONTROLLING. IT CAN BE CONTROLLED VIA THE SERIAL PROTOCOL TTL (TXD & RXD PINS). VOLT: 3.3 - 30 VDC. FREQ: 1HZ – 150 KHZ
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Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE

Specifications

  • LCD display frequency and duty cycle, very clear, PWM output can be set to the frequency and duty cycle;
  • Wide frequency range, high precision;
  • Serial communication, TTL level;

Module Feature:

  • PWM output, you can set the frequency, duty cycle;
  • Frequency is divided into four ranges, automatic switching:
  • XXX (no decimal point): the smallest unit is 1Hz, the value range of 1Hz - 999Hz;
  • X.XX (decimal point in the hundred) the smallest unit is 0.01Khz, the range of 1.00Khz - 9.99Khz;
  • XX.X (decimal point in ten): the smallest unit is 0.1Khz; value range of 10.0KHz - 99.9KHz
  • X.X.X (decimal point in ten and hundred): the smallest unit is 1Khz; value range 1KHz - 150KHz 

Frequency display: 100 indicates PWM output 100Hz pulse;

  • 1.01 indicates PWM output 1.01K pulse;
  • 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 pulse;
  • Duty cycle range: 0 - 100%;
  • All set parameters, power-down automatically saved. 

Parameter Settings:

  • The module has four independent keys, used to set the frequency and duty cycle, support touch (increase or decrease a unit) and long press (fast increase or decrease), set the parameters automatically save, power down Not lost. 

Module Parameters:

  • Working voltage: 3.3 - 30V;
  • Frequency range: 1Hz - 150KHz;
  • Frequency accuracy: the accuracy in each range is about 2%;
  • Signal load capacity: the output current can be about 5 - 30ma;
  • Output amplitude: PWM amplitude equal to the supply voltage;
  • Ambient temperature: -20 - +70 degree 

Application:

  • Used as a square wave signal generator, generate square wave signal for experimental development and use;
  • Used to generate a square wave signal that controls the motor driver;
  • generate adjustable pulse for MCU use;
  • generate adjustable pulse, control the relevant circuit (PWM dimming speed and other applications).
  • Serial control (single-chip TTL level communication) 

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.