---
product_id: 1170701
title: "16-Channel 12V Relay Module Board for Arduino DSP AVR PIC ARM"
brand: "sainsmart"
price: "B/.76"
currency: PAB
in_stock: true
category: "Sain Smart"
url: https://www.desertcart.com.pa/products/1170701-16-channel-12v-relay-module-board-for-arduino-dsp-avr
store_origin: PA
region: Panama
---

# 12A max switching current 16 relay channels 12V coil voltage 16-Channel 12V Relay Module Board for Arduino DSP AVR PIC ARM

**Brand:** sainsmart
**Price:** B/.76
**Availability:** ✅ In Stock

## Summary

> ⚙️ Command your smart setup with 16 channels of power-packed control!

## Quick Answers

- **What is this?** 16-Channel 12V Relay Module Board for Arduino DSP AVR PIC ARM by sainsmart
- **How much does it cost?** B/.76 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/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

- • **Expand Control Like a Pro:** 16 independent channels let you manage multiple devices seamlessly.
- • **Handle Heavy Loads Safely:** High-current relays rated for up to 12A at 250V AC or 30V DC.
- • **Power Your Projects with Precision:** Robust 12V coil voltage ensures reliable relay activation every time.
- • **Visual Feedback for Instant Status:** Built-in LED indicators keep you informed of each relay’s operational state.
- • **Plug & Play Microcontroller Compatibility:** Directly interfaces with Arduino, AVR, PIC, DSP, ARM, and more for effortless integration.

## Overview

The SainSmart 16-Channel 12V Relay Module is a high-performance interface board designed for microcontroller projects. Featuring 16 independent relays rated for 12A switching current at up to 250V AC, it supports direct control from popular platforms like Arduino and ARM. With built-in LED indicators and robust isolation, it offers reliable, scalable control for home automation, robotics, and industrial applications—perfect for professionals who demand precision and expandability.

## 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 | #922 in Single Board Computers (Computers & Accessories) |
| Brand Name | SainSmart |
| Coil Voltage | 12 volts |
| Connector Type | Through Hole |
| Contact Current Rating | 12 A |
| Contact Material | Silver |
| Contact Type | Normally Open |
| Current Rating | 10 A |
| Customer Reviews | 4.4 4.4 out of 5 stars (622) |
| 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 A |
| Maximum Switching Voltage | 250 volts |
| Minimum Switching Voltage | 12 volts |
| Model | 101-70-103 |
| Mounting Type | PCB Mount |
| Number of Items | 1 |
| Operation Mode | Automatic |
| Part Number | 101-70-103 |
| UPC | 796793392285 |
| Unit Count | 1 Count |
| Warranty Description | / |
| Wattage | 144 watts |

## Product Details

- **Connector Type:** Through Hole
- **Contact Material:** Silver
- **Contact Type:** Normally Open
- **Current Rating:** 10 A
- **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

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**Shop now:** [https://www.desertcart.com.pa/products/1170701-16-channel-12v-relay-module-board-for-arduino-dsp-avr](https://www.desertcart.com.pa/products/1170701-16-channel-12v-relay-module-board-for-arduino-dsp-avr)

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*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-10-25*