--- product_id: 263713660 title: "4pcs NE555 Pulse Frequency Square Wave Rectangular Wave Signal Generator Signal Generator Module Stepper Motor Driver Compatible for Arduino uno Robot Smart Car" brand: "relkin" price: "€ 8.98" currency: EUR in_stock: true reviews_count: 1 category: "Relkin" url: https://www.desertcart.at/products/263713660-4pcs-ne555-pulse-frequency-square-wave-rectangular-wave-signal-generator store_origin: AT region: Austria --- # Adjustable 1Hz-200kHz frequency range LED output indicator for real-time signal status Wide 5V-15V DC input voltage 4pcs NE555 Pulse Frequency Square Wave Rectangular Wave Signal Generator Signal Generator Module Stepper Motor Driver Compatible for Arduino uno Robot Smart Car **Brand:** relkin **Price:** € 8.98 **Availability:** ✅ In Stock ## Summary > ⚙️ Power your projects with precision pulses — don’t get left in the signal noise! ## Quick Answers - **What is this?** 4pcs NE555 Pulse Frequency Square Wave Rectangular Wave Signal Generator Signal Generator Module Stepper Motor Driver Compatible for Arduino uno Robot Smart Car by relkin - **How much does it cost?** € 8.98 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/263713660-4pcs-ne555-pulse-frequency-square-wave-rectangular-wave-signal-generator) ## Best For - relkin enthusiasts ## Why This Product - Trusted relkin brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Visual Feedback:** Built-in LED indicators provide instant output status, minimizing troubleshooting time - • **Compact & Modular:** Four compact NE555 modules (31mm x 22mm) for flexible multi-signal setups - • **Precision Pulse Control:** Fine-tune pulse frequency and duty cycle for custom MCU and circuitry needs - • **Wide Voltage Compatibility:** Operates smoothly from 5V to 15V DC, supporting various power environments - • **Versatile Signal Generation:** Generates stable square wave signals ideal for stepper motors and experimental projects ## Overview This 4-pack NE555 pulse frequency signal generator module delivers adjustable square wave outputs from 1Hz up to 200kHz, powered by a flexible 5V-15V DC input. Designed for Arduino, robotics, and stepper motor control, each compact module features LED output indicators for real-time signal monitoring, enabling precise pulse and duty cycle adjustments to optimize your experimental and development projects. ## Description Size: 31mm * 22mm Main chip: NE555 Input voltage: 5V-15VDC. 5V power supply, the output current can 15MA around; 12V power supply, the output current can 35MA around; The input current: 100MA Output amplitude: 4.2V V-PP to 11.4V V-PP. (Different depending on the input voltage, the output amplitude will be different) The maximum output current: 15MA (5V power supply, V-PP greater than 50%), 35MA (12V power supply, V-PP greater than 50%) Advantages: The output with LED indication, there is no output straightforward (low LED volume, high LED off frequency is relatively low, the LED flashes); The output level selectable frequency range, the output frequency is more continuously adjustable: LF file: 1Hz ~ 50Hz IF file: 50Hz ~ 1kHz High-frequency file: 1KHz ~ 10kHz HF file: 10kHz ~ 200kHz The output duty cycle can fine-tune, duty cycle and frequency is not separately adjustable, adjusting the duty cycle will change the frequency. The output frequency is adjustable: The frequency of the buyers can own calculations. Review: Seem to burn out at 12v - Plugged up to a 12v 18350 and worked fine for a while. Plugged it in, same battery later, and poof. 555 IC fried. ## Features - Can be used as a square wave signal generator, generates a square wave signal used for experimental development - To drive a stepper motor for generating a square wave drive signal - Adjustable pulse generated for use by MCU - Adjustable pulse generation to control circuitry associated - Package:4pcs NE555 pulse frequency signal generator ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08RC7D1X5 | | Best Sellers Rank | #918,390 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #545 in Function Generators | | Customer Reviews | 4.0 4.0 out of 5 stars (3) | | Date First Available | December 26, 2020 | | Manufacturer | Relkin | ## Images ![4pcs NE555 Pulse Frequency Square Wave Rectangular Wave Signal Generator Signal Generator Module Stepper Motor Driver Compatible for Arduino uno Robot Smart Car - Image 1](https://m.media-amazon.com/images/I/611nDd-Pq6L.jpg) ![4pcs NE555 Pulse Frequency Square Wave Rectangular Wave Signal Generator Signal Generator Module Stepper Motor Driver Compatible for Arduino uno Robot Smart Car - Image 2](https://m.media-amazon.com/images/I/61yBbVznwpL.jpg) ![4pcs NE555 Pulse Frequency Square Wave Rectangular Wave Signal Generator Signal Generator Module Stepper Motor Driver Compatible for Arduino uno Robot Smart Car - Image 3](https://m.media-amazon.com/images/I/511ahWNBv7L.jpg) ![4pcs NE555 Pulse Frequency Square Wave Rectangular Wave Signal Generator Signal Generator Module Stepper Motor Driver Compatible for Arduino uno Robot Smart Car - Image 4](https://m.media-amazon.com/images/I/51GYfgxDItL.jpg) ## Customer Reviews ### ⭐⭐⭐ Seem to burn out at 12v *by C***A on July 25, 2024* Plugged up to a 12v 18350 and worked fine for a while. Plugged it in, same battery later, and poof. 555 IC fried. --- ## 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.at/products/263713660-4pcs-ne555-pulse-frequency-square-wave-rectangular-wave-signal-generator](https://www.desertcart.at/products/263713660-4pcs-ne555-pulse-frequency-square-wave-rectangular-wave-signal-generator) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-06-04*