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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)

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)

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.

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Product ID: 514649383

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Details

Connector Type
Crimp
Contact Material
Silver
Contact Type
Normally Open
Current Rating
10 Amps
Mounting Type
Screw Mount

⚡10A high current capacity

🔌Supports up to 250VAC/30VDC switching

🛡️Optocoupler isolation for safe control

Frequently Bought Together

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)

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Description

🔗 Connect with confidence — power your projects like a pro!

OPTOCOUPLER ISOLATION - Protect your microcontroller with built-in photocoupler isolation.
POWERFUL 10 A LOAD HANDLING - Switch heavy-duty devices effortlessly with 10 amps capacity.
WIDE VOLTAGE COMPATIBILITY - Seamlessly control circuits from 3.3V up to 250V AC/DC.
COMPACT SCREW MOUNT READY - Easy installation with space-saving 7x1.7x2 cm design.
PACK OF 5 FOR PROJECTS PROTOTYPES - Bulk up your toolkit and never run out mid-build.

The Teyleten Robot DC 1 Channel Optocoupler Relay Module is a compact, screw-mountable control board designed for Arduino and similar microcontrollers. It supports high current loads up to 10A and switching voltages up to 250VAC/30VDC, featuring optocoupler isolation to safeguard your circuits. Sold in packs of five, it’s ideal for professional-grade DIY electronics and prototyping.

Specifications

Connector Type	Crimp
Contact Material	Silver
Contact Type	Normally Open
Current Rating	10 Amps
Mounting Type	Screw Mount
Brand	Teyleten Robot
Operation Mode	Manual
Coil Voltage	3 Volts
Maximum Switching Voltage	250 Volts
Minimum Switching Voltage	3.3 Volts
Number of Terminals	2
Specification Met	cULus
UPC	724545020568
Manufacturer	Teyleten Robot
Country of Origin	USA
Model number	RK-S1B4-G97L
Specific Product Use	personal
Item Weight	0.28 g
Product Dimensions	7 x 1.7 x 2 cm; 0.28 g
Item model number	RK-S1B4-G97L
Item Height	20 Millimeters
Item Width	17 Millimeters
Are batteries included?	No

Have a Question? See What Others Asked

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?

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12 interest-free installments with tabby

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TrustScore 4.5 | 7,300+ reviews

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