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Huayao Channel Module Optocoupler Raspberry Review

3

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Excellent

Revainrating 5 out of 5  
Rating 
5.0
🖥️. Single Board Computers, 💻 Computer Components

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Description of Huayao Channel Module Optocoupler Raspberry

5V 8-Channel Relay interface board, each one needs 15-20mA Driver Current;Relay output maximum contact is AC250V 10A and DC30V 10A. Each relay has normally open and normally closed contact. Can be selected by jumper relay and TTL or ground. Standard interface that can be controlled directly by microcontroller (8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic). With power indicator,8-way road has a status indicator. With a relay coil to absorb the diode protection. Widely used for all MCU control, industrial sector, PLC control, smart home control.

Reviews

Global ratings 3
  • 5
    3
  • 4
    0
  • 3
    0
  • 2
    0
  • 1
    0

Type of review

Revainrating 5 out of 5

Works as expected in single board computers

These are excellent relay boards. Pretty simple, what more do you need right? I like that the relays can be switched with 3.3V, although they need 5V to work.

Pros
  • single board computers
Cons
  • little things

Revainrating 5 out of 5

Works as it should -

These are excellent relay boards. Pretty simple, what more do you need right? I like that the relays can be switched with 3.3V, although they need 5V to work.

Pros
  • Single Board Computer
Cons
  • Single Board Computer Quick Guide

Revainrating 5 out of 5

Lots of online support articles

This is great value for money. I've found that these relays not only require VCC and a common ground from the microcontroller that sends the switching signal to the relay board, but also require a slightly higher switching voltage than specified when all relay gates are active. Search the internet for articles about these relay boards, they are widely available. There are no instructions or information in the packaging, but these can be found on the manufacturer's website.

Pros
  • Computer components
Cons
  • New competitors have appeared