SongHe 1 Channel DC 3V Relay High Level Driver Module Optocoupler Relay Module Isolated Drive Control Board for Arduino (Pack of 5)

SongHe 1 Channel DC 3V Relay High Level Driver Module Optocoupler Relay Module Isolated Drive Control Board for Arduino (Pack of 5)

Q: I'm still not clear with the jumpers are for. What does optoisolation do here?

There are a few reasons why you would use isolation here. By the way, jumpers are for isolation - although the top jumper is futile. To use the optoisolator, disconnect the bottom jumper and connect the left pin to ground for the signal coming in to the board and connect the right pin to the ground of the voltage that activates the relay. The VCC should be connected to the voltage source that operates the relay (or if you want to remove the top jumper, vcc goes to the right pin, however it is the same as leaving the jumper on and just wiring it to the vcc input on the board. - I have used this setup to run a bank of relays off of an esp32. This allows you to run many relays without any significant voltage drop on the esp32. You will need to provide an alternate vcc for the relays. Imagine running 15 relays off of the ESP32. That would possibly cause a voltage issue on the board. If all you need to do is run 15 tiny leds (I guess 30 if you include the indicator on the board) your voltage drop would be much much lower. Because this uses optoisolation, the circuit that sends the signal (usually a microcontroller) and the voltage that powers the relay, can be totally isolated. You could use a battery for one and a computer usb for the other - no common ground between the two. -- Not pointless by any means, but the circuit setup for this is goofy and causes you to scratch your head for a minute.

Q: I put 3.3v on vcc and grounded gnd. when i put 3.3v on in, the red led lights, but the relay doesn't close. is there something i'm missing here?

It should work. You are controlling a Transistor that is operating the relay. Make sure there is enough current in VCC to activate the relay. LED will light with only 1.3v and very little current. The relay must have 3.3V VCC. Also make sure your Arduino output line has the same ground as board. Using separate power supplies can cause the problem. Otherwise, I need more details about your connection.

4.4/5

产品编号: 345368604

安全交易

细节

Connector type
Crimp
Contact material
Silver
Contact type
Normally Open
Current rating
10 Amps
Mounting type
Panel Mount

⚡3V/3.3V Power

🔌10A Load Capacity

🛡️Optocoupler Isolation

经常一起购买

Teyleten Robot DC 1 Channel Optocoupler 3V/3.3V Relay High Level Driver Module Isolated Drive Control Board 3V/3.3V Relay Module for Arduino (Pack of 5)

AEDIKO 4pcs DC 5V Relay Module - 1 Channel Relay Switch Board with Optocoupler Isolation, High or Low Level Trigger

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

描述

🚀 Power Up Your Projects with Precision!

SAFETY FIRST - Optocoupler isolation ensures your circuits stay protected.
LIMITED STOCK ALERT - Only 100 units available—don’t miss out on this essential tool!
PACK OF 5 FOR THE WIN - Stock up and save—perfect for multiple projects or backups.
POWER MEETS PRECISION - Control up to 10A at 250VAC or 30VDC effortlessly.
UNLEASH YOUR PROJECTS - Elevate your Arduino creations with this high-level driver module.

The 1 Channel DC 3V Relay High Level Driver Module is an optocoupler relay module designed for Arduino enthusiasts. It supports 3V/3.3V power and can handle loads of up to 10A at 250VAC or 30VDC. This pack of 5 modules ensures you have enough for various projects while providing essential isolation for safe operation.

有问题吗？看看别人问了什么

I'm still not clear with the jumpers are for. What does optoisolation do here?

Will 3v power the relay?

I want to run this realy on a 2 AA battery box (3v total) do i need to do anything with jumpers?

I put 3.3v on vcc and grounded gnd. when i put 3.3v on in, the red led lights, but the relay doesn't close. is there something i'm missing here?

常见问题

TrustPilot

TrustScore 4.5 | 7,300多个评论

安妮塔· G.

体验不错，但跟踪更新可以更好。

2 个月前

尤素夫·A.

总体来说，体验非常棒。会推荐给朋友和家人。

1 个月前

查看所有TrustPiLot评论

全球购物，通过 Desertcart 享受优惠

物有所值

各种产品的价格具有竞争力

全球购物

为 100 多个国家的数百万购物者提供服务

增强保护

深受全球购物者喜爱的值得信赖的支付方式

客户保证

深受全球购物者喜爱的值得信赖的支付方式。

沙漠车应用程序

随时随地随时随地购物。

HK$238

关税和税费包括

Hong Kong店铺

免运费

with PRO Membership

免费退货

30天对于 PRO 会员用户

15天无会员资格

安全交易

TrustPilot

TrustScore 4.5 | 7,300多个评论

维克拉姆·D.

MOLLE 护套质量非常好。我对这次购买非常满意。

2 周前

苏雷什· K.

质量和快速送货让我印象深刻。会再次来这里购物。

4天前

查看所有TrustPiLot评论