--- product_id: 472780685 title: "3pcs Relay Module for Arduino, ESP32, ESP8266, Raspberry Pi, 1 Channel, 5V, High/Low Level Trigger" brand: "diyables" price: "₨10712" currency: LKR in_stock: true category: "Di Yables" url: https://www.desertcart.lk/products/472780685-3pcs-relay-module-for-arduino-esp32-esp8266-raspberry-pi-1 store_origin: LK region: Sri Lanka --- # 5V operating voltage High/Low level trigger selectable Optocoupler isolation for signal protection 3pcs Relay Module for Arduino, ESP32, ESP8266, Raspberry Pi, 1 Channel, 5V, High/Low Level Trigger **Brand:** diyables **Price:** ₨10712 **Availability:** ✅ In Stock ## Summary > 🔌 Empower your smart projects with precision switching—because control is everything. ## Quick Answers - **What is this?** 3pcs Relay Module for Arduino, ESP32, ESP8266, Raspberry Pi, 1 Channel, 5V, High/Low Level Trigger by diyables - **How much does it cost?** ₨10712 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/472780685-3pcs-relay-module-for-arduino-esp32-esp8266-raspberry-pi-1) ## Best For - diyables enthusiasts ## Why This Product - Trusted diyables brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Triple Pack Power:** Three independent relay modules in one set—perfect for multi-device projects or backup peace of mind. - • **Secure & Easy Wiring:** Terminal blocks with screw-down connectors make installation quick, reliable, and professional-grade. - • **Clear Status Indicators:** Dual LEDs provide instant visual feedback on power and relay status—never guess your setup again. - • **Robust Signal Isolation:** Optocoupler isolation ensures your microcontroller stays safe from voltage spikes and noise. - • **Versatile Trigger Modes:** Switch seamlessly between high and low-level triggers with a simple jumper for ultimate control flexibility. ## Overview This 3-piece 5V single-channel relay module set is compatible with Arduino, ESP32, ESP8266, Raspberry Pi, and other 3.3V-5V microcontrollers. Featuring selectable high/low-level triggers, optocoupler isolation for enhanced safety, and terminal blocks for secure wiring, it supports up to 10A load at AC 250V or DC 30V. Dual LED indicators provide real-time status, making it an essential, reliable component for professional-grade IoT and automation projects. ## Description This is 3 pieces of 5V 1-channel relay modules that work with Arduino, ESP32, ESP8266, Raspberry Pi, or any 5V or 3.3V microcontroller. A single package includes 3 pieces of relay modules. SPECIFICATION: - Normally open and normally closed. - High-level trigger or low-Level trigger selection by a jumper. - Optocoupler isolation. - Terminal blocks for both input and output. - Two LED indicators: power (green LED), the relay status (red LED). - Fault-tolerant design, even if the control line is broken, the relay will not operate. - Operating voltage (power): 5V. - Trigger voltage: 3.3V to 5V. - Trigger current: 5mA. - Maximum load: AC 250V/10A, DC 30V/10A - Dimension: 50mm x 26mm x 18.5mm (L x W x H). INPUT INTERFACE: - DC+ : Connect the positive pole of the 5V power supply. - DC- : Connected the negative pole of the 5V power supply. - IN: Signal trigger input (3.3V to 5V, high or low level signal selected via a jumper). OUTPUT INTERFACE: - NO: The normally open interface. - NC: The normally closed interface. - COM: The common interface for both normally open and normally closed. High/low level trigger selection jumper: - If the jumper is placed between COM and L, the relay uses LOW level trigger. - If the jumper is placed between COM and H, the relay uses HIGH level trigger. HOW IT WORKS: High Level Trigger: - When IN is LOW level signal, the NO does not connect with COM and the NC connects with COM. - When IN is HIGH level signal, the NO connects with COM and the NC does not connect with COM. Low Level Trigger: - When IN is LOW level signal, the NO connects with COM and the NC does not connect with COM. - When IN is HIGH level signal, the NO does not connect with COM and the NC connects with COM. TUTORIALS: - Arduino and ESP32 online tutorials: DIYables Relay ## Features - Relay supports Normally Open and Normally Closed - Relay supports High-level Trigger or Low-Level Trigger selectable by a jumper - Relay with Optocoupler Isolation - Relay with Terminal Blocks for both Input and Output Interface - Relay with two LED Indicators: power (green LED), the relay status (red LED) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B1ZHXXXD | | Best Sellers Rank | #77,447 in Computers ( See Top 100 in Computers ) #1,120 in Single-Board Computers | | Brand Name | DIYables | | Coil Voltage | 5 Volts | | Connector Type | Screw | | Contact Current Rating | 10 Amps | | Contact Material | Steel | | Contact Type | Normally Open | | Current Rating | 10 Amps | | Customer Reviews | 4.2 4.2 out of 5 stars (43) | | Manufacturer | DIYables | | Maximum Switching Current | 10 Amps | | Maximum Switching Voltage | 5 Volts | | Minimum Switching Voltage | 3.3 Volts | | Model | DIY-RELAY-3-5V-1C-LH | | Mounting Type | Surface Mount | | Operation Mode | Automatic | | Part Number | DIY-RELAY-3-5V-1C-LH | | Unit Count | 3.0 Count | | Wattage | 50 watts | ## Product Details - **Connector type:** Screw - **Contact material:** Steel - **Contact type:** Normally Open - **Current rating:** 10 Amps - **Mounting type:** Surface Mount ## Images ![3pcs Relay Module for Arduino, ESP32, ESP8266, Raspberry Pi, 1 Channel, 5V, High/Low Level Trigger - Image 1](https://m.media-amazon.com/images/I/61vQMnAdRAL.jpg) ## Available Options This product comes in different **Size** options. ## Frequently Bought Together - DIYables 3pcs Relay Module for Arduino, ESP32, ESP8266, Raspberry Pi, 1 Channel, 5V, High/Low Level Trigger - TMEZON 12 Volt 2A Power Adapter Supply AC to DC 2.1mm X 5.5mm Plug 12v 2 Amp Wall Plug Extra Long 8 Foot Cord LED Strip Module Light - DIYables DC Power Jack Plug Adapter Connector for LED Strip, DC Motor, Stepper Motor, CCTV Camera, 2.1 x 5.5mm Male Female 5 Pairs --- ## 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.lk/products/472780685-3pcs-relay-module-for-arduino-esp32-esp8266-raspberry-pi-1](https://www.desertcart.lk/products/472780685-3pcs-relay-module-for-arduino-esp32-esp8266-raspberry-pi-1) --- *Product available on Desertcart Sri Lanka* *Store origin: LK* *Last updated: 2026-05-19*