--- product_id: 201538566 title: "4 channel 5v relay shield module for Arduino UNO R3 Relay Shield Interface 4 Four Channel For PIC AVR DSP ARM MCU Arduino UNO R3" brand: "youmile" price: "£9.26" currency: GBP in_stock: true reviews_count: 2 url: https://www.desertcart.co.uk/products/201538566-4-channel-5v-relay-shield-module-for-arduino-uno-r3 store_origin: GB region: United Kingdom --- # 5V/3.3V high drive voltage 4-channel relay control 3 M3 screw mounting holes 4 channel 5v relay shield module for Arduino UNO R3 Relay Shield Interface 4 Four Channel For PIC AVR DSP ARM MCU Arduino UNO R3 **Brand:** youmile **Price:** £9.26 **Availability:** ✅ In Stock ## Summary > ⚡ Power your smart home projects with precision and style! ## Quick Answers - **What is this?** 4 channel 5v relay shield module for Arduino UNO R3 Relay Shield Interface 4 Four Channel For PIC AVR DSP ARM MCU Arduino UNO R3 by youmile - **How much does it cost?** £9.26 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/201538566-4-channel-5v-relay-shield-module-for-arduino-uno-r3) ## Best For - youmile enthusiasts ## Why This Product - Trusted youmile brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Seamless Stackability:** Expand your smart projects effortlessly by stacking multiple shields without cable clutter. - • **Universal Compatibility:** Designed to perfectly fit Arduino UNO R3 and compatible MCU boards for plug-and-play convenience. - • **Visual Status Indicators:** Stay in control with onboard red LEDs that instantly show relay activation status. - • **Secure & Easy Installation:** Precision 3 M3 screw holes ensure stable mounting for professional-grade setups. - • **High-Voltage Power Handling:** Control high-power devices safely with robust 5V DC relays supporting normally open/closed contacts. ## Overview The Youmile 4 Channel 5V Relay Shield Module is a compact, stackable relay board designed for Arduino UNO R3 and similar MCUs. It features four high-drive relays (5V/3.3V), onboard LED indicators for real-time status, and secure mounting with 3 M3 screw holes. Ideal for smart home automation and high-power device control, it eliminates wiring hassle with a standard shield interface. ## Description 4 channel 5v relay shield module for Arduino UNO R3 Relay Shield Interface 4 Four Channel For PIC AVR DSP ARM MCU Arduino UNO R3 ## Features - Standard for Shield interfaces and shape - Can continue to stack other for expansion boards - 3 M3 screw positioning holes for easy installation - High Drive (5V or 3.3V) normally open contact closure - Onboard relay indicator (red) ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | Youmile | | Part number | GR-YM-165 | | Item Weight | 40 g | | Package Dimensions | 11.18 x 9.1 x 2.29 cm; 40 g | | Item model number | GR-YM-165 | | Plug profile | Boards | | Batteries included? | No | | Batteries Required? | No | ## Product Details - **Connector type:** Screw - **Contact material:** Silver - **Contact type:** Normally Open - **Mounting type:** Boards - **Brand:** Youmile ## Images ![4 channel 5v relay shield module for Arduino UNO R3 Relay Shield Interface 4 Four Channel For PIC AVR DSP ARM MCU Arduino UNO R3 - Image 1](https://m.media-amazon.com/images/I/614ncBDvzBL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐ 4.0 out of 5 stars Suitable but not perfect. *by J***L on Reviewed in the United Kingdom on 2 May 2020* This is a good product and does what it should. It’s a cheaper build then an original Arduino board but that’s to be expected given the price. I had to trim some of the soldered pins to prevent a short against the USB port on the UNO R3 but otherwise all good. Digital pins 4, 5, 6&7 are used to activate the relays when HIGH. ### ⭐⭐⭐ Funktioniert mit Einschränkungen *by H***J on Reviewed in Germany on 30 September 2022* Das Shield funktioniert, auch sind 2 Ersatzrelais mit dabei. Aber wenn man es auf den ARDUINO UNO steckt, stören die Drahtenden bzw. Lötpunkte des Shields. Man kann es nicht ganz auf die Platine draufstecken und im Bereich der USB - Buchse muss das Metall isoliert werden damit es zu keinem Kurzschluss kommt. Das kennt man aber auch von anderen Shields. Kommt darauf noch ein weiteres Shield, dann sind die Verbindungen nicht 100% ok weil die Platine auf den Relais aufsetzt. Wenn die Verbindungsdrähte dieses obersten Shields etwas kurz sind, hat das obere Shield auch keinen 100% Kontakt..Unter Umständen müssen dann dem obersten Board Verbindingsleisten mit längeren Beinchen aufgelistet werden.Fazit: Shield soweit ok, mit den geschilderten Verbindungaproblemen. --- ## 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.co.uk/products/201538566-4-channel-5v-relay-shield-module-for-arduino-uno-r3](https://www.desertcart.co.uk/products/201538566-4-channel-5v-relay-shield-module-for-arduino-uno-r3) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-27*