KKHMF 2PCS LCD Display PWM Pulse Frequency Duty Cycle Adjustable Module Square Wave Square Wave Signal Generator

Brand: KKHMF Sold By: japan_devotion924
$17.40 In Stock
Ships from Japan Arrives in 10-15 business days

Free Standard Shipping on orders over 89

30-day returns in original condition. Food, medicine & supplements are non-returnable.
Delivery:
17
August2026
-
24
August2026
delivery Delivery Guarantee arrow
check$5 Credit If Delayed
checkFull Refund If Item Is Damaged
check15-Day Full Refund If No Updates
check30-Day Full Refund If Not Delivered
KKHMF 2PCS LCD Display PWM Pulse Frequency Duty Cycle Adjustable Module Square Wave Square Wave Signal Generator

KKHMF 2PCS LCD Display PWM Pulse Frequency Duty...

$17.40

Product Details
  • You can set PWM output, frequency, and duty cycle
  • LCD display frequency and duty cycle, very clear, PWM output can be set to frequency and duty cycle
  • Wide frequency range, high precision
  • Serial Communication, TTL Level
  • The frequency can be divided into 4 ranges: Auto switching: XXX (no decimals): Minimum unit is 1Hz, value range is 1Hz to 999Hz. X.XX (100 decimals) Minimum unit is 0.01Khz, 1.00Khz to 9.99Khz

  • Manufacturer: Apple Trees E-commerce co., LT
  • Package Quantity: 1

Features:
PWM Pulse Frequency Duty Cycle Adjustable Module Square Wave Signal Generator

The frequency is divided into four ranges, automatic switching:
1. XXX(without decimals): Minimum unit is 1Hz, 1Hz-999Hz value range,
2. X.XX (100 decimals) Minimum unit is 0.01Khz, 1.00Khz? 9.99 Khz range.
3. XX.X (10 decimals): Minimum unit is 0.1Khz. 10.0 KHz - 99.9 KHz value range
4. X.X (10 and 100 decimals): Minimum 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 54.1 kHz pulse,
1.2.4 indicates PWM output is 124 kHz pulse.
Duty Cycle Range: 0-100(%);
All setting parameters and power down are saved automatically.
Second, parameter setting
The module has 4 independent keys used to set frequency and duty cycles, support touch (increase or decrease the unit) and long press (fast increase or decrease the parameters automatically,

Third, the module parameters:
1. Operating voltage: 3.3-30V
2. Frequency range: 1Hz-150KHz;
3. Frequency Accuracy: Each range is about 2% accuracy.
4. Signal Load Capacity: The output current can be adjusted to approximately 5 to 30 mA.
Output Amplitude: PWM Amplitude, equal to power supply voltage
6. Ambient Temperature: -20-+70℃

Fourth, Scope:
1. Used as a square-wave signal generator to produce square-wave signals for experimental development and use.
2. Used to produce square-wave signals to control the motor driver.
Produces an adjustable pulse for MCU use.
4. Generate adjustable pulses and control related circuits (PWM dimming speed and other applications).
5. Serial control (single-chip TTL level communication).

Package Includes:
2 X PWM Pulse Frequency Duty Cycle Adjustable Module Square Wave Signal Generator

Shipping Overview: 

Shipping: Standard Domestic Shipping within the United States charges first item USD 6.99 and additional item USD 3.0 each. Standard International Shipping from United Kingdom, Germany, Italian and Japan to the United States charges first item USD 11.99 and additional item USD 4.0 each.

Import Duty: Everymarket collects applicable duties and taxes on goods imported into the U.S. at checkout, it's calculated based on the goods value multiply by the rate. For United Kingdom and China goods is 10%, Germany, Italian and Japan goods is 15%. We are committed to making your U.S. shopping experience simple and transparent. The method of delivery—either Delivered Duty Paid (DDP) or Delivered Duty Unpaid (DDU)—depends on whether duties and taxes are collected at the time of your purchase.

Order Processing: Please allow 1-2 business days for order processing and preparation before shipment. 

Domestic Shipping: Orders within the U.S. are shipped via USPS or FedEx, depending on the origin of the product. Average transit times to the United States is 3 - 7 Business days and average transit times to International is 7 - 14 Business days 

International Shipping: Currently, we only ship within the USA. 

Tracking Information: Every order is trackable. You will receive a tracking number once your order has been shipped. Products may be shipped from various global fulfillment centers.

Shipping Delays: 

Please note that shipping times may vary due to factors beyond our control, such as weather conditions, natural disasters, or peak holiday periods. While we strive to ensure timely delivery, the exact arrival time cannot be guaranteed and is managed by the shipping carrier.

Shipping Options:

  • Standard Delivery: Most orders are shipped within 3-7 business days. Larger items may utilize LTL shipping for safe handling.

  • Handling Time: We handle shipments on business days (Monday - Friday), with a preparation time of 1-2 days.

  • Additional Charges: Some items require additional shipping charges due to their size, weight, or special handling. These charges are specified on the product pages and are not eligible for shipping discounts.

  • Exclusions: Gift cards, packaging, taxes, and prior purchases do not count toward the minimum purchase requirement for free shipping. This offer is valid only for shipments to U.S. addresses, including Puerto Rico.

Delivery Details:

  • Estimates: Standard shipping within the US typically takes 3-7 business days. These are estimates and not guarantees.

  • Shipping Restrictions: We ship to all 50 states, Washington, DC, U.S. territories, and APO/FPO/DPO addresses. Shipping options vary based on the delivery address.

  • Remote Areas: Shipments to remote areas may incur additional charges or require pickup from a nearby shipping partner’s location.

Shipping Confirmation:

You will receive a shipping confirmation email with a tracking number as soon as your order is dispatched. If you do not receive this email immediately, please be assured that your items will arrive within the estimated delivery window provided at checkout.

Order Modifications:

If you need to cancel or modify your order, please contact our customer support immediately.

Issues with Delivery:

If your order shows as delivered but you have not received it, please contact the shipping carrier directly to resolve the issue. For persistent problems, contact our customer service at cs@everymarket.com.

Customer Support:

Our team is available 24/7 to assist you with any questions or concerns regarding your order. We are committed to ensuring a smooth shopping experience.

Return & Refund Policy Overview

Please review our return and refund policies below to ensure a smooth transaction process.

Return Policy

  • Duration: You have 30 days from receiving your item to initiate a return.

  • Condition: Items must be unworn, unwashed, with original tags and packaging intact.

  • Shipping Costs:
    - If your return is approved due to a defective, damaged, or incorrect item, we will provide a prepaid return shipping label at no cost.

    - If the item has no quality issues and matches the product listing and description, please contact our Customer Service team before returning it. Once your return is authorized, you must return the item according to the provided instructions. In this case, the return shipping cost is the customer's responsibility.

    - We are not responsible for return shipping costs for items returned without prior authorization.

  • Packaging: Ensure returned items are well-packaged to avoid damage during transit.

  • Tracking: Use a trackable and insured shipping method as we are not liable for items lost or damaged on return.

  • Initiating a Return: Contact us at cs@everymarket.com to start your return. We will provide a return shipping label and instructions upon approval. Returns without prior approval will not be accepted.

How to Return

  • Method: Returns must be sent back by mail to the address provided in the return instructions.

Return Label

  • Please contact us to get return labels.

Product Conditions for Return

  • Eligible Products: Returns are only accepted for items in new condition.

Nonreturnable Items

Certain items are not eligible for return:

  • Electronic devices after 30 days (e.g., computers, laptops, Kindles)

  • Gift cards, prepaid game cards

  • Perishable goods, live insects, some jewelry, some health and personal care items

  • Customized or personalized products

  • Items with special shipping restrictions

Refund Policy

  • Window: Eligible products may be returned within 30 days of delivery for a refund.

  • Refund Method: Refunds are processed to the original payment method or as store credit for items purchased with gift cards.

  • Processing Time: Refunds are processed within 3-5 business days after we receive the return; please allow additional time for shipping and bank processing.

Claims

Inspect your order upon arrival and report any defects, damages, or incorrect items immediately to allow us to address the issue. For claims, contact our support team with details of the issue.

Exchange Policy

For the quickest service, return your original item and place a new order for the desired product once your return is accepted.

Return Address

EveryMarket Customer Service 2101 E Terra Ln, O'Fallon, MO 63366

Customer Support

Available 24/7 for any questions or assistance needed:

  • Phone: +1 (800) 660-3783

  • Email: cs@everymarket.com

 

  • You can set PWM output, frequency, and duty cycle
  • LCD display frequency and duty cycle, very clear, PWM output can be set to frequency and duty cycle
  • Wide frequency range, high precision
  • Serial Communication, TTL Level
  • The frequency can be divided into 4 ranges: Auto switching: XXX (no decimals): Minimum unit is 1Hz, value range is 1Hz to 999Hz. X.XX (100 decimals) Minimum unit is 0.01Khz, 1.00Khz to 9.99Khz

  • Manufacturer: Apple Trees E-commerce co., LT
  • Package Quantity: 1

Features:
PWM Pulse Frequency Duty Cycle Adjustable Module Square Wave Signal Generator

The frequency is divided into four ranges, automatic switching:
1. XXX(without decimals): Minimum unit is 1Hz, 1Hz-999Hz value range,
2. X.XX (100 decimals) Minimum unit is 0.01Khz, 1.00Khz? 9.99 Khz range.
3. XX.X (10 decimals): Minimum unit is 0.1Khz. 10.0 KHz - 99.9 KHz value range
4. X.X (10 and 100 decimals): Minimum 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 54.1 kHz pulse,
1.2.4 indicates PWM output is 124 kHz pulse.
Duty Cycle Range: 0-100(%);
All setting parameters and power down are saved automatically.
Second, parameter setting
The module has 4 independent keys used to set frequency and duty cycles, support touch (increase or decrease the unit) and long press (fast increase or decrease the parameters automatically,

Third, the module parameters:
1. Operating voltage: 3.3-30V
2. Frequency range: 1Hz-150KHz;
3. Frequency Accuracy: Each range is about 2% accuracy.
4. Signal Load Capacity: The output current can be adjusted to approximately 5 to 30 mA.
Output Amplitude: PWM Amplitude, equal to power supply voltage
6. Ambient Temperature: -20-+70℃

Fourth, Scope:
1. Used as a square-wave signal generator to produce square-wave signals for experimental development and use.
2. Used to produce square-wave signals to control the motor driver.
Produces an adjustable pulse for MCU use.
4. Generate adjustable pulses and control related circuits (PWM dimming speed and other applications).
5. Serial control (single-chip TTL level communication).

Package Includes:
2 X PWM Pulse Frequency Duty Cycle Adjustable Module Square Wave Signal Generator

Shipping Overview: 

Shipping: Standard Domestic Shipping within the United States charges first item USD 6.99 and additional item USD 3.0 each. Standard International Shipping from United Kingdom, Germany, Italian and Japan to the United States charges first item USD 11.99 and additional item USD 4.0 each.

Import Duty: Everymarket collects applicable duties and taxes on goods imported into the U.S. at checkout, it's calculated based on the goods value multiply by the rate. For United Kingdom and China goods is 10%, Germany, Italian and Japan goods is 15%. We are committed to making your U.S. shopping experience simple and transparent. The method of delivery—either Delivered Duty Paid (DDP) or Delivered Duty Unpaid (DDU)—depends on whether duties and taxes are collected at the time of your purchase.

Order Processing: Please allow 1-2 business days for order processing and preparation before shipment. 

Domestic Shipping: Orders within the U.S. are shipped via USPS or FedEx, depending on the origin of the product. Average transit times to the United States is 3 - 7 Business days and average transit times to International is 7 - 14 Business days 

International Shipping: Currently, we only ship within the USA. 

Tracking Information: Every order is trackable. You will receive a tracking number once your order has been shipped. Products may be shipped from various global fulfillment centers.

Shipping Delays: 

Please note that shipping times may vary due to factors beyond our control, such as weather conditions, natural disasters, or peak holiday periods. While we strive to ensure timely delivery, the exact arrival time cannot be guaranteed and is managed by the shipping carrier.

Shipping Options:

  • Standard Delivery: Most orders are shipped within 3-7 business days. Larger items may utilize LTL shipping for safe handling.

  • Handling Time: We handle shipments on business days (Monday - Friday), with a preparation time of 1-2 days.

  • Additional Charges: Some items require additional shipping charges due to their size, weight, or special handling. These charges are specified on the product pages and are not eligible for shipping discounts.

  • Exclusions: Gift cards, packaging, taxes, and prior purchases do not count toward the minimum purchase requirement for free shipping. This offer is valid only for shipments to U.S. addresses, including Puerto Rico.

Delivery Details:

  • Estimates: Standard shipping within the US typically takes 3-7 business days. These are estimates and not guarantees.

  • Shipping Restrictions: We ship to all 50 states, Washington, DC, U.S. territories, and APO/FPO/DPO addresses. Shipping options vary based on the delivery address.

  • Remote Areas: Shipments to remote areas may incur additional charges or require pickup from a nearby shipping partner’s location.

Shipping Confirmation:

You will receive a shipping confirmation email with a tracking number as soon as your order is dispatched. If you do not receive this email immediately, please be assured that your items will arrive within the estimated delivery window provided at checkout.

Order Modifications:

If you need to cancel or modify your order, please contact our customer support immediately.

Issues with Delivery:

If your order shows as delivered but you have not received it, please contact the shipping carrier directly to resolve the issue. For persistent problems, contact our customer service at cs@everymarket.com.

Customer Support:

Our team is available 24/7 to assist you with any questions or concerns regarding your order. We are committed to ensuring a smooth shopping experience.

Return & Refund Policy Overview

Please review our return and refund policies below to ensure a smooth transaction process.

Return Policy

  • Duration: You have 30 days from receiving your item to initiate a return.

  • Condition: Items must be unworn, unwashed, with original tags and packaging intact.

  • Shipping Costs:
    - If your return is approved due to a defective, damaged, or incorrect item, we will provide a prepaid return shipping label at no cost.

    - If the item has no quality issues and matches the product listing and description, please contact our Customer Service team before returning it. Once your return is authorized, you must return the item according to the provided instructions. In this case, the return shipping cost is the customer's responsibility.

    - We are not responsible for return shipping costs for items returned without prior authorization.

  • Packaging: Ensure returned items are well-packaged to avoid damage during transit.

  • Tracking: Use a trackable and insured shipping method as we are not liable for items lost or damaged on return.

  • Initiating a Return: Contact us at cs@everymarket.com to start your return. We will provide a return shipping label and instructions upon approval. Returns without prior approval will not be accepted.

How to Return

  • Method: Returns must be sent back by mail to the address provided in the return instructions.

Return Label

  • Please contact us to get return labels.

Product Conditions for Return

  • Eligible Products: Returns are only accepted for items in new condition.

Nonreturnable Items

Certain items are not eligible for return:

  • Electronic devices after 30 days (e.g., computers, laptops, Kindles)

  • Gift cards, prepaid game cards

  • Perishable goods, live insects, some jewelry, some health and personal care items

  • Customized or personalized products

  • Items with special shipping restrictions

Refund Policy

  • Window: Eligible products may be returned within 30 days of delivery for a refund.

  • Refund Method: Refunds are processed to the original payment method or as store credit for items purchased with gift cards.

  • Processing Time: Refunds are processed within 3-5 business days after we receive the return; please allow additional time for shipping and bank processing.

Claims

Inspect your order upon arrival and report any defects, damages, or incorrect items immediately to allow us to address the issue. For claims, contact our support team with details of the issue.

Exchange Policy

For the quickest service, return your original item and place a new order for the desired product once your return is accepted.

Return Address

EveryMarket Customer Service 2101 E Terra Ln, O'Fallon, MO 63366

Customer Support

Available 24/7 for any questions or assistance needed:

  • Phone: +1 (800) 660-3783

  • Email: cs@everymarket.com

 

Oops!

Sorry, it looks like some products are not available in selected quantity.

OK