--- product_id: 475994266 title: "5Pcs NE555 Pulse Frequency Duty Cycle Adjustable Module Rectangular Square Wave Signal Generator Stepper Motor Driver Board Module NE555 Pulse Generator" brand: "daokai" price: "AED 112" currency: AED in_stock: true reviews_count: 6 category: "Daokai" url: https://www.desertcart.ae/products/475994266-5pcs-ne555-pulse-frequency-duty-cycle-adjustable-module-rectangular-square store_origin: AE region: United Arab Emirates --- # DC 5-15V input voltage 1Hz-200KHz adjustable frequency Duty cycle & frequency fine-tuning 5Pcs NE555 Pulse Frequency Duty Cycle Adjustable Module Rectangular Square Wave Signal Generator Stepper Motor Driver Board Module NE555 Pulse Generator **Brand:** daokai **Price:** AED 112 **Availability:** ✅ In Stock ## Summary > ⚙️ Master your signals, own your circuits—because precision waits for no one! ## Quick Answers - **What is this?** 5Pcs NE555 Pulse Frequency Duty Cycle Adjustable Module Rectangular Square Wave Signal Generator Stepper Motor Driver Board Module NE555 Pulse Generator by daokai - **How much does it cost?** AED 112 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ae](https://www.desertcart.ae/products/475994266-5pcs-ne555-pulse-frequency-duty-cycle-adjustable-module-rectangular-square) ## Best For - daokai enthusiasts ## Why This Product - Trusted daokai brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Complete 5-Pack Kit:** Includes 5 modules plus a 15-pin cable—gear up your projects with no delays. - • **LED Output Indicator:** Instant visual feedback ensures your signal is live and accurate. - • **Precision Frequency Control:** Seamlessly dial from 1Hz to 200KHz for ultimate signal customization. - • **Versatile Application Ready:** Perfect for stepper motors, MCU pulse generation, and experimental development. - • **Dynamic Duty Cycle Adjustment:** Fine-tune pulse width to optimize your circuit’s performance effortlessly. ## Overview The DAOKAI 5Pcs NE555 Pulse Frequency Duty Cycle Adjustable Modules deliver highly customizable rectangular square wave signals with input voltage ranging from 5V to 15V. Featuring a broad frequency range from 1Hz to 200KHz and adjustable duty cycle, these modules provide precise pulse generation ideal for stepper motor drivers, MCU control, and experimental electronics. Each module includes LED output indicators for real-time signal status, and the package comes with five modules plus a 15-pin female-to-male cable, making it a comprehensive toolkit for professionals and hobbyists aiming to elevate their circuit design and testing capabilities. ## Description Product parameters: 1. Main chip: NE555 2. Input voltage: 5V-15VDC, when powered by 5V, the output current can be around 15MA; when powered by 12V, the output current can be around 35MA; 3. Input current: greater than or equal to 100MA 4. Output amplitude: 4.2V V-PP to 11.4V V-PP (depending on the input voltage, the output amplitude will be different) 5. Maximum output current: greater than or equal to 15MA (5V power supply, when V-PP is greater than 50%), greater than or equal to 35MA (12V power supply, when V-PP is greater than 50%) Advantages: 1. The output has LED indication, and it is clear whether there is any output (the LED is on when the low level is on, the LED is off when the high level is off, and the LED flashes when the frequency is relatively low) 2. The output frequency range is optional, making the output frequency more continuously adjustable; Low frequency file: 1Hz～50Hz IF file: 50Hz～1kHz Medium and high frequency range: 1KHz～10kHz High frequency file: 10kHz～200kHz 3. The output duty cycle can be fine-tuned. The duty cycle and frequency are not adjustable separately. Adjusting the duty cycle will change the frequency; 4. The output frequency is adjustable; Period T=0.7(RA+2RB)C RA and RB are adjustable from 0 to 10K; C=0.001UF at low frequency; C=0.1UF at intermediate frequency; Medium and high frequency range C=1UF; C=100UF at high frequency, Package includes: 5 x NE555 Pulse Frequency Duty Cycle Adjustable Module 1 x 15pin Female to Male Cable Review: Perfect for faking a PC fan rpm signal - Used this to fake a high RPM signal in a server that wasn't happy with Noctua fan replacement spinning at less than half the OEM Delta fan speed. Worked a charm, machine is now quiet. Connected the 12v, ground and rpm wires via a splitter from the fan header to this board, with 12v+ground+pwm going to the fan. Review: Hoping to use these to learn my oscilloscope functions...and invent stuff ## Features - Specification: Main chip: N5555;Input voltage: DC5-15V; Output amplitude: 4.2V V-PP(5v input) to 11.4V V-PP(12V input); Output frequency 1Hz-50Hz, 50Hz-1KHz, 1KHz-10KHz, 10KHz-200KHz Four Optional. - Feature: There are 4 jumpers and 2 variable resistors on the module, users can adjust the output wave with these components, to get their ideal wave easily. - LED indicator: The output has LED indication, and it is clear whether there is any output (the LED is on when the low level is on, the LED is off when the high level is off, and the LED flashes when the frequency is relatively low) - Scope of application: Used as a square wave signal generator to generate square wave signals for experimental development. It is used to generate square wave signal to drive the stepper motor driver. Generate adjustable pulses for MCU use. to generate adjustable pulses to control related circuits. - Package includes: You will get 5 x NE555 Pulse Frequency Duty Cycle Adjustable Module, 1 x 15pin Female to Male Cable. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B82HB1LQ | | Best Sellers Rank | 174,630 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 250 in Function Generators | | Brand | DAOKAI | | Circuit Breaker Type | Standard | | Current Rating | 15 Amps | | Customer Reviews | 4.2 4.2 out of 5 stars (16) | | Included Components | 5 x Frequency Duty Cycle Adjustable Module, 1 x 15pin Female to Male Cable | | Manufacturer | DAOKAI | | Manufacturer Part Number | WE-DA-119 | | Model Number | WE-DA-119 | | Mounting Type | Hutschienenmontage | | Number of Poles | 15 | | Unit Count | 5.0 Count | | Voltage | 15 Volts | ## Product Details - **Brand:** DAOKAI - **Circuit breaker type:** Standard - **Current rating:** 15 Amps - **Mounting type:** Hutschienenmontage - **Number of poles:** 15 ## Images ![5Pcs NE555 Pulse Frequency Duty Cycle Adjustable Module Rectangular Square Wave Signal Generator Stepper Motor Driver Board Module NE555 Pulse Generator - Image 1](https://m.media-amazon.com/images/I/71B1CfBhxRL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect for faking a PC fan rpm signal *by K***N on 28 July 2023* Used this to fake a high RPM signal in a server that wasn't happy with Noctua fan replacement spinning at less than half the OEM Delta fan speed. Worked a charm, machine is now quiet. Connected the 12v, ground and rpm wires via a splitter from the fan header to this board, with 12v+ground+pwm going to the fan. ### ⭐⭐⭐⭐⭐ Review *by R***N on 25 February 2026* Hoping to use these to learn my oscilloscope functions...and invent stuff ### ⭐⭐⭐⭐⭐ Review *by R***L on 20 September 2025* Exactement ce que je cherche --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ae/products/475994266-5pcs-ne555-pulse-frequency-duty-cycle-adjustable-module-rectangular-square](https://www.desertcart.ae/products/475994266-5pcs-ne555-pulse-frequency-duty-cycle-adjustable-module-rectangular-square) --- *Product available on Desertcart United Arab Emirates* *Store origin: AE* *Last updated: 2026-05-10*