SKU: 29859913098

BDD PWM SIGNAL GEN+DISP 0-150KHZ

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Description

BDD PWM SIGNAL GEN+DISP 0-150KHZThe 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 LCD Display Frequency and Duty Cycle 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

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

LCD Display Frequency and Duty Cycle

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.

Additional Information

Device LCD Display
Type Frequency | Duty Cycle
Shipping Notes
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Exchange/Return Notes
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SKU: 29859913098

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Phoenix, US
★★★★★ 5
Bright, Versatile, and Easy to Use!
Color: Warm White
This Dual-Power Patio Umbrella Light is exactly what I needed for evening gatherings! I love that it works with both rechargeable and regular batteries—super convenient. The three lighting modes are perfect for setting the mood, whether it’s a dinner party or just relaxing outside. It clips easily onto the umbrella pole and stays secure. Great for patios and even camping. Definitely worth it!
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Reviewed in the United States on June 23, 2025
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LilRoc83
Cuba, US
★★★★★ 5
This little light is bright!
Color: Cool White
I was looking for a light to hang with my outdoor table that has an umbrella. I did not know this was a thing! But I am glad I found it! It fits perfect, snaps right on. The light is bright enough to see the entire area located under the umbrella. I am unsure how long the battery life works as we haven't stayed out past dark more than an hour or so, but it has worked every day for a week! Awesome product, awesome idea! Why didn't I think of that!?! Totally recommend this little light!
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Reviewed in the United States on July 16, 2025
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PHILL
Pawtucket, US
★★★★★ 5
Great little umbrella light, I love it!
Color: Warm White, Color: Warm White
This umbrella light is small , compact and very lightweight, you can effortlessly move it around if your changing umbrellas. I Also love how bright this little thing is, with the click of a button the place is brightly lit. Love, that you don't have to have all the lights on if you don't want to that's a stand out feature. Great little light that adds a touch of elegance. Very user-friendly, in seconds to minutes its up and running.
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Reviewed in the United States on July 3, 2025
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Liz
Lake Worth, US
★★★★★ 4
Great Light but NOT USB CHARGEABLE
I bought this lamp for my bell tent, which has a center pole. It did exactly what I wanted it to do: provide light to my whole tent instead of depending on a lantern or flashlight. It snapped on easily and fit the pole perfectly. I wish it had a remote but I could have spent more and bought one with that functionality. The reason I took a star off is because it is advertised as being USB and even requires RECHARGABLE batteries. Since I'm not savvy on these things I paid extra for the batteries thinking the USB charges them in the device. NOPE. The USB is just for powering the light from an ac source (which is pointless for what I use it for).
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Reviewed in the United States on March 4, 2025
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Yorba Family
Natrona Heights, US
★★★★★ 5
Kinda of a cool gadget
Color: Cool White
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