HiLetgo 2pcs 3 Channel PWM Pulse Generator Signal Generator Module Adjustable Frequency Square Wave Rectangular Wave Signal Generator Duty Cycle with LCD Display 1Hz-150Khz

The media could not be loaded. Good quality module with a nice durable build. It does exactly what it is supposed to do and I didn't have any problems at all. I used this as a stand-alone module to manually dim a 5mm LED and power a 6v dc motor. You can also add a trigger (button/pir motion sensor/photoresistor...etc) to turn the module on and off. I added a momentary button to start and stop the motor.You can also use this precision module for:*Servo Motor Position Control*Pulse Width Modulation for Heating Elements*Tone Generation for Buzzersand *Light Flasher/Strobe to name a fewYou can attach a fan blade to a dc motor shaft and use it with an oscilloscope for educational purposes. Using a flan blade and motor shaft setup to view waveforms on an oscilloscope helps in understanding the conversion of mechanical motion into electrical signals, the characteristics of periodic signals, and practical applications of sensors and signal processing. It’s a hands-on method that makes abstract concepts more concrete and easier to grasp.Keep in mind:While a PWM module can dim 5mm LEDs effectively, it is not suitable for controlling WS2812B LEDs due to their need for precise digital signaling. For WS2812B, use a dedicated LED controller or a microcontroller capable of handling the required digital communication.You can use this module with basic digital servo motors but you will need to manually change duty cycle for position control. For better servo control, you might want to consider a dedicated servo controller or a PWM driver board designed specifically for servos, which can provide the necessary resolution, accuracy, and power to ensure optimal performance.

Product is different from what I expected -- but that's on me, because I didn't read close enough and understand the description. This 3-channel PWM signal generator can be adjusted to provide different duty cycles on each channel, but the frequency will be the same on all three channels.Note to HiLetgo: If you built and sold a similar product that allowed setting different frequencies for each channel (but the same duty cycle on all three), I think you would sell millions of them.That said, this device worked exactly as described (once I re-read and understood the specifications). Considering all the controls and the backlit LDC display, it is an amazing value for the money.

Works well. Not sure how accurate it is but I have full adjustability for what I need.

Seems to work OK. You adjust the frequency for all three channels. The channels all rise together and the falling edge is adjustable. Not what I needed, but if this meets your needs it works fine. There are no posts, so you'll need to solder wires or use your own posts. Very easy to use. It looks like there are programming pins but no information on the microcontroller, may be under the LCD.

The media could not be loaded. I use this PWM generator with the Drok 160W dual motor H-bridge. Yes, if you want to program it with the Arduino or another SBC, you will have to hunt around for the code. Here is how I program my Arduino Due in my HB Sat tracking unit. // Freq and the duty cycle are set for Azmuith and Elevation. Note the code below sets up the module for 5,000 Hz at 30% on both motors. My 10rpm worm drive motors operate very smoothly. See my video. The working code below. Put this in your setup area in the sketchSerial3.begin(9600); // Due board D14 & D15 tx/rx to rx/tx on pwm multiple channel generatorSerial3.write("F05.00");delay(100);Serial3.write("D1:030");delay(100);Serial3.write("D2:030");delay(100);Have fun!MikeKD0ZW.com

Frequency is not adjustable on each Chanel. Duty cycle on 3 Chanelle of the set freq.

For what I'm doing this is great. Cost is outstanding and does a very good job.

I think I only cursed once setting this up to drive a pulsing electromagnetic wave. It's an interesting device. If you have an oscilloscope, grab a pair of these. It's a good use of an evening.