16-Channel Relay Module

Q: Does anyone know if this is compatible with raspberry pi model b?

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?

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?

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?

Yes, they light up when the relay is on

4.4/5

ID del producto: 293431535

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Detalles

Connector type
Through Hole
Contact type
Normally
Current rating
10 Amps
Mounting type
Surface Mount
Brand
sainsmart

⚡16 Channels

💡LED Status Indicators

🔌AC/DC Compatibility

Comprados juntos con frecuencia

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

Descripción

🔧 Power Your Projects with Precision!

HIGH CURRENT HANDLING - Power up to 10A AC and 12A DC, perfect for heavy-duty applications.
MICROCONTROLLER FRIENDLY - Seamlessly integrates with popular microcontrollers like Arduino and ARM.
REAL TIME STATUS UPDATES - LED indicators keep you informed of relay output status at a glance.
COMPACT AND EFFICIENT DESIGN - Space-saving module that fits perfectly into any project setup.
UNLEASH YOUR AUTOMATION POTENTIAL - With 16 channels at your fingertips, control multiple devices effortlessly.

The SainSmart 16-Channel Relay Module is a versatile 12V interface board designed for high-current applications, featuring 16 channels that can be controlled by various microcontrollers. With robust AC and DC compatibility and LED indicators for real-time status, this module is perfect for both hobbyists and professionals looking to enhance their automation projects.

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Does anyone know if this is compatible with raspberry pi model b?

What there are two power inputs? (Low level inputs (5V) and blue port (12V)). Do I need to connect both?

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?

Are there diodes across the relay coils?

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16-Channel Relay Module

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