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πŸ”Œ huayao 2pcs 4 channel 5v relay module with optocoupler for arduino uno r3 mega 2560 1280 dsp arm pic avr stm32 raspberry pi logo

πŸ”Œ Huayao 2pcs 4 Channel 5V Relay Module with Optocoupler for Arduino UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi Review

6

Β·

Very good

Revainrating 4.5 out of 5Β Β 
RatingΒ 
4.3
πŸ–₯️. Single Board Computers, πŸ’» Computer Components

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img 1 attached to πŸ”Œ Huayao 2pcs 4 Channel 5V Relay Module with Optocoupler for Arduino UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi
img 2 attached to πŸ”Œ Huayao 2pcs 4 Channel 5V Relay Module with Optocoupler for Arduino UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi
img 3 attached to πŸ”Œ Huayao 2pcs 4 Channel 5V Relay Module with Optocoupler for Arduino UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi
img 4 attached to πŸ”Œ Huayao 2pcs 4 Channel 5V Relay Module with Optocoupler for Arduino UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi

Details

BrandHuayao
Contact Current Rating10 Amps
Maximum Switching Current10 Amps

Description of πŸ”Œ Huayao 2pcs 4 Channel 5V Relay Module with Optocoupler for Arduino UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi

This relay module is 5V active low. Relay output maximum contact is AC250V 10A and DC30V 10A. Standard interface can be directly connected with microcontrollers. Working status indicator lights are conducive to the safe use. 4-channel relay interface board, which can be controlled directly by a wide range of microcontrollers such as AVR, PIC, ARM, PLC, etc. It is also able to control various appliances and other equipments with large current. Widely used for all MCU control, industrial sector, PLC control, smart home control.

Reviews

Global ratings 6
  • 5
    4
  • 4
    0
  • 3
    2
  • 2
    0
  • 1
    0

Type of review

Revainrating 5 out of 5

God's Worth Computers and Accessories

Good price for a relay board, I've read a few reviews where they had problems with the relay only activating when the power was off but I have one on my rc car connected with remote control and works fine.

Pros
  • Very good price
Cons
  • Appearance

Revainrating 3 out of 5

It works. It may have an additional ground contact.

Relay is working properly. Solder joints are smooth and clean. I would like to see a ground pin next to VCC for the output side of the optocoupler. I'm not sure if the ground is isolated or not as you need to use the ground on the signal input side.

Pros
  • Rugged finish
Cons
  • Not all will fit

Revainrating 5 out of 5

Good value for money. Works without problems.

Suitable for my needs. The two-pack ordered works perfectly when tested. The included case is a bit cumbersome to assemble.

Pros
  • Acceptable
Cons
  • Exorbitant price

Revainrating 5 out of 5

Good value for money. Works without problems.

Good for my needs. The two-pack ordered works perfectly when tested. The included case is a bit cumbersome to assemble.

Pros
  • This relay module has a low active voltage of 5V. The maximum relay output contact is 250VAC 10A and 30VDC 10A.
Cons
  • Older model

Revainrating 3 out of 5

It works. It may have an additional ground contact.

Relay works properly. Solder joints are smooth and clean. I would like to see a ground pin next to VCC for the output side of the optocoupler. I'm not sure if the ground is isolated or not as you need to use the ground on the signal input side.

Pros
  • Power indicator lights for safe use
Cons
  • Not as thick as other picks

Revainrating 5 out of 5

Easy to use in single board computer

These relays are great. Simple and works exactly as you would expect. They are active at a low level, which confused me a bit. I just used #define RELAY_OFF HIGH and #define RELAY_ON LOW and then digitalWrite(RELAY1_PIN, RELAY_ON); turn it on this saves you the confusion of trying to remember that 0/LOW is on and 1/HIGH is off. They claim they can handle 10a at 125VAC. What I have to switch with them is only about 5 amps so I have a feeling they will work great. I bought another set that only…

Pros
  • Widely used to control all microcontrollers, industrial sector, PLC control, smart home control.
Cons
  • Short manual