--- product_id: 1170701 title: "16-Channel 12V Relay Module Board for Arduino DSP AVR PIC ARM" brand: "sainsmart" price: "€ 54.68" currency: EUR in_stock: true category: "Sain Smart" url: https://www.desertcart.gr/products/1170701-16-channel-12v-relay-module-board-for-arduino-dsp-avr store_origin: GR region: Greece --- # Supports AC250V 10A & DC30V 12A LED indicators for real-time status 16 high-current relay channels 16-Channel 12V Relay Module Board for Arduino DSP AVR PIC ARM **Brand:** sainsmart **Price:** € 54.68 **Availability:** ✅ In Stock ## Summary > ⚙️ Command your smart world with 16 channels of power-packed precision! ## Quick Answers - **What is this?** 16-Channel 12V Relay Module Board for Arduino DSP AVR PIC ARM by sainsmart - **How much does it cost?** € 54.68 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/1170701-16-channel-12v-relay-module-board-for-arduino-dsp-avr) ## Best For - sainsmart enthusiasts ## Why This Product - Trusted sainsmart brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Power Up Your Projects:** 16 robust relay channels ready to handle heavy loads effortlessly. - • **Instant Visual Feedback:** Built-in LED indicators keep you informed of relay status at a glance. - • **Efficient & Compact Design:** Low 15-20mA driver current per channel ensures energy-smart operation. - • **High-Voltage & Current Endurance:** Handles up to 250V AC and 12A DC — perfect for demanding automation tasks. - • **Universal Microcontroller Compatibility:** Seamlessly integrates with Arduino, AVR, PIC, ARM, and more for ultimate control. ## Overview The SainSmart 16-Channel 12V Relay Module is a high-performance interface board designed for professional-grade automation projects. Compatible with a wide range of microcontrollers including Arduino and ARM, it supports switching up to 250V AC and 12A DC loads. Featuring 16 independent relay channels with LED status indicators, it offers reliable, energy-efficient control for complex systems, making it a must-have for tech-savvy makers and engineers aiming to elevate their smart setups. ## Description This is a 12V 16-Channel Relay interface board. It is able to control various appliances, and other equipments with large current. It can be controlled directly by Micro-controller (Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic).Features:12V 16-Channel Relay interface board, and each one needs 15-20mA Driver Current;Equipped with high-current relay, AC250V 10A ; DC30V 10A;Standard interface that can be controlled directly by microcontroller (Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic);Indication LED's for Relay output status. ## Features - 12V 16-Channel Relay interface board, and each one needs 15-20mA Driver Current - Equipped with high-current relay, AC250V 10A ; DC30V 12A - Standard interface that can be controlled directly by microcontroller (Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP433, TTL logic) - Indication LED's for Relay output status ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0057OC66U | | Best Sellers Rank | #864 in Single Board Computers (Computers & Accessories) | | Brand Name | SainSmart | | Coil Voltage | 12 Volts | | Connector Type | Through Hole | | Contact Current Rating | 12 Amps | | Contact Material | Silver | | Contact Type | Normally Open | | Current Rating | 10 Amps | | Customer Reviews | 4.4 4.4 out of 5 stars (619) | | Global Trade Identification Number | 00796793392285, 06952131721337 | | Included Components | 16-Channel Relay Module | | Item Type Name | 16-Channel Relay Module | | Manufacturer | SainStore Inc. | | Maximum Switching Current | 12 Amps | | Maximum Switching Voltage | 250 Volts | | Minimum Switching Voltage | 12 Volts | | Model | 101-70-103 | | Mounting Type | PCB Mount | | Operation Mode | Automatic | | Part Number | 101-70-103 | | UPC | 796793392285 | | Warranty Description | / | | Wattage | 144 watts | ## Product Details - **Connector Type:** Through Hole - **Contact Material:** Silver - **Contact Type:** Normally Open - **Current Rating:** 10 Amps - **Mounting Type:** PCB Mount ## Images ![16-Channel 12V Relay Module Board for Arduino DSP AVR PIC ARM - Image 1](https://m.media-amazon.com/images/I/71iAO6BUk9L.jpg) ## Available Options This product comes in different **Pattern** options. ## Questions & Answers **Q: Does anyone know if this is compatible with raspberry pi model b?** A: I bought this board specifically to work with the Raspberry PI. I've futzed with it for hours and the complete lack of documentation makes it very hard to get it up and running. Through trial and error though I've found the following setup works:1) Hook up the pair of screw terminals (in blue plastic) to an external 12v power supply2) Hook up the 3.3v out on the RPi (pin 1) to the 5v pin on the relay board (I know, this doesn't make sense)3) Hook up any GPIO pin to any of the 16 input pins on the board4) Toggle the GPIO pin using your favorite method5) The relay will toggle nowWhat threw me was using the 3.3v on the RPi instead of the marked 5v. That is very confusing labeling. It's also unfortunate that this board requires a 12v supply which can't come from the RPi but must be applied externally. My project, happened to have one so I was lucky. I hope this information helps. It would be so easy for SainSmart to offer this on their website and help out alot of folks having trouble. **Q: What there are two power inputs? (Low level inputs (5V) and blue port (12V)). Do I need to connect both?** A: The board takes 12V input to operate. I use a at least 1-2 amp power supply and that connects to the 12V inputs. There is a 5V OUTPUT on the board which is convenient and can be used to power something like an Arduino. Which is what I do. **Q: I have an application where the output voltage to switch the contacts is 12 volts, will the inputs tolerate this or will I need to add resistors?** A: Yes, it will. I have this hooked up to some led work lights in a store display. 40 of them. Power the board with 12v at the 2 screw terminals, and use your switched outputs directly to the low level inputs and it will switch on the relays. Pretty simple., **Q: Are there diodes across the relay coils?** A: Yes, they light up when the relay is on ## Frequently Bought Together - SainSmart 16-Channel 12V Relay Module Board for Arduino DSP AVR PIC ARM - ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects - ELEGOO MEGA R3 Board ATmega 2560 + USB Cable Compatible with Arduino IDE Projects RoHS Compliant --- ## 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.gr/products/1170701-16-channel-12v-relay-module-board-for-arduino-dsp-avr](https://www.desertcart.gr/products/1170701-16-channel-12v-relay-module-board-for-arduino-dsp-avr) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-07-27*