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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)

4.4 out of 5 stars 177 ratings
#1 Best Seller in Optocouplers
$9.99
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Purchase options and add-ons

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

About this item

  • Original Songle Relay
  • 30VDC 250VAC Load：The power switch is compatible with 10A 250VAC and 10A 30VDC load.
  • Optocoupler Isolator:3V/3.3V power relay module supports photocoupler isolation control.
› See more product details

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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 Mod
This item: 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)
$9.99
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Sold by Teyleten Robot-US and ships from Amazon Fulfillment.
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AEDIKO 4pcs DC 5V Relay Module 1 Channel Relay Switch Relay Board with Optocoupler Isolation Support High or Low Level Trigge
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ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Rib
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Product details

  • Product Dimensions ‏ : ‎ 2.76 x 0.67 x 0.79 inches; 0.01 ounces
  • Item model number ‏ : ‎ RK-S1B4-G97L
  • Date First Available ‏ : ‎ September 3, 2019
  • Manufacturer ‏ : ‎ Teyleten Robot
  • ASIN ‏ : ‎ B07XGZSYJV
  • Country of Origin ‏ : ‎ China
  • Customer Reviews:
    4.4 out of 5 stars 177 ratings

Product Description

We are Songle original relay Size: 70mm X17mm X20mm (LxWxH) - Main chip: EL817, SRD-DC03V-SL-C - Work voltage: DC 3V/3.3V - Control 10A 250VAC, 10A 30VDC load Features - Instructions with the signal output; - Signal input port can connect microcontroller IO port, high level signal - Double power selection design anti-interference ability is strong, photoelectric isolation protection of high reliability - Current wide detection range:DC0-25V input - A diode current protection - Response time is less than 20 milliseconds - Relay long life can absorb 100000 times continuously - External connection use spinning crimping terminal, make connection firmer - With fixed installation hole, convenient installation,High Level Trigger:The relay module is triggered by high level signal, which can be input from microcontroller IO,Jumper Caps:You are free to select whether the relay and the signal share the same power supply or not by removing the jumper caps on the pins or not. It is recommended to share the same power supply, because that is more convenient for using.

Customer reviews

4.4 out of 5 stars
177 global ratings

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Customers say

Customers find the relay module works well with various devices, including Adafruit Feather 3.3V boards, Raspberry Pi 4, and ESP8266. They appreciate its ease of integration and controllability, with one customer noting it works perfectly with Raspberry Pi GPIO. The power consumption receives mixed feedback, with one customer reporting it draws too much current. The screw holes receive criticism for being too small.

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26 customers mention "Functionality"19 positive7 negative

Customers report that the relay module works perfectly with various devices, including Adafruit Feather 3.3V boards, ESP8266, Raspberry Pi 4, and operates effectively at 3.7v levels.

"...Has a red LED that lights when the relay is activated, giving good operational feedback...." Read more

"...Overall these work great for my project." Read more

"Works perfectly with my ESP32 boards" Read more

"5/5 will not work with 3.3V, will however work with 5V. useless though considering the RPi outputs 3.3 from GPIO" Read more

4 customers mention "Ease of integration"4 positive0 negative

Customers find the relay module easy to integrate, with one mentioning it's simple to connect to a microcontroller board and another noting it's simpler to buy than build.

"...blocks for both sides of the relay making it easy to integrate with microcontroller board...." Read more

"...The rest seems pretty straight forward to connect. Just don't want to fry my Pi." Read more

"...The 3.3v GPIO pins reliably open and close the relays. Homebridge and a bit of scripting and I can now use Siri and HomeKit to control decades-old..." Read more

"Works fine a 3.3v and 5v. Simpler to buy than build...." Read more

3 customers mention "Controllability"3 positive0 negative

Customers appreciate the relay's controllability, with one mentioning successful operation with Raspberry Pi GPIO and another noting its suitability for controlling 3D printers.

"...This works perfectly using the Pico's 3.3v source and driving the relays from the GPIO pins...." Read more

"As advertised. Works well, driven by Raspberry Pi GPIO. No problems." Read more

"...Raspberry pi GPIO controls the relay perfectly. Will buy again when I need more." Read more

3 customers mention "Power consumption"0 positive3 negative

Customers report issues with the relay's power consumption, noting that it draws too much current and cannot handle maximum voltage.

"Be advised that these draw too much current (120mA) to power from an ESPboard plugged into a USB port...." Read more

"This relay used so much power that it could not be driven directly via an esp8266 or esp32...." Read more

"Can’t handle at max voltage..." Read more

3 customers mention "Screw holes"0 positive3 negative

Customers report issues with the screw holes, with one mentioning they are too small, another noting that the M2.5 mounting holes are too close together, and a third reporting that the screw terminals do not align properly.

"...Only niggle is that the screw holes are a bit small. i had to enlarge them with a file to fit normal sized standoff screws." Read more

"...The only negative is that the M2.5 mounting holes are too close to the edges of the board...." Read more

"The screw terminals do not line up to correct pins on relay. Does not work." Read more

Ignore most of the reviews
5 out of 5 stars
Ignore most of the reviews
There are a lot of reviews for these clearly written by people using them in ways they are not intended to be used.I am using these to trigger different animatronics from an ESP32. I have 3 of them run in parallel with a 3v LED at the end of the chain. I am powering them from the ESP32's 3V3 pin. I am using a GPIO as the trigger. The ESP32, connected via usb to a computer, still provides enough amperage to trigger all 3 at the same time in addition to powering the LED.The relays support 250V@30A on the output side ONLY. Some people mentioning theirs caught on fire, but clearly are running voltage to the wrong rails.There's no documentation on the jumpers, but basically they are ground and VCC. I am not sure why they would be there, but I guess you could use them as headers to not use the screw terminals? this seems silly though as IN would still need to use the screw terminal.Overall these work great for my project.
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Top reviews from the United States

  • Kaushik Ghose
    5.0 out of 5 stars Does the job, works at 3.3V as advertised.
    Reviewed in the United States on December 6, 2024
    Verified Purchase
    Can be used from a ESP32 system which has 3.3V logic without any additional circuitry. Has screw terminal blocks for both sides of the relay making it easy to integrate with microcontroller board. Has a red LED that lights when the relay is activated, giving good operational feedback.

    Only niggle is that the screw holes are a bit small. i had to enlarge them with a file to fit normal sized standoff screws.
    One person found this helpful
    Helpful
     Report
  • Anthony C
    5.0 out of 5 stars Ignore most of the reviews
    Reviewed in the United States on August 28, 2024
    Verified Purchase
    There are a lot of reviews for these clearly written by people using them in ways they are not intended to be used.

    I am using these to trigger different animatronics from an ESP32. I have 3 of them run in parallel with a 3v LED at the end of the chain. I am powering them from the ESP32's 3V3 pin. I am using a GPIO as the trigger. The ESP32, connected via usb to a computer, still provides enough amperage to trigger all 3 at the same time in addition to powering the LED.

    The relays support 250V@30A on the output side ONLY. Some people mentioning theirs caught on fire, but clearly are running voltage to the wrong rails.

    There's no documentation on the jumpers, but basically they are ground and VCC. I am not sure why they would be there, but I guess you could use them as headers to not use the screw terminals? this seems silly though as IN would still need to use the screw terminal.

    Overall these work great for my project.
    Customer image
    Anthony C
    5.0 out of 5 stars
    Ignore most of the reviews

    Reviewed in the United States on August 28, 2024
    There are a lot of reviews for these clearly written by people using them in ways they are not intended to be used.

    I am using these to trigger different animatronics from an ESP32. I have 3 of them run in parallel with a 3v LED at the end of the chain. I am powering them from the ESP32's 3V3 pin. I am using a GPIO as the trigger. The ESP32, connected via usb to a computer, still provides enough amperage to trigger all 3 at the same time in addition to powering the LED.

    The relays support 250V@30A on the output side ONLY. Some people mentioning theirs caught on fire, but clearly are running voltage to the wrong rails.

    There's no documentation on the jumpers, but basically they are ground and VCC. I am not sure why they would be there, but I guess you could use them as headers to not use the screw terminals? this seems silly though as IN would still need to use the screw terminal.

    Overall these work great for my project.
    Images in this review
    Customer image
    3 people found this helpful
    Helpful
     Report
  • Exscotticus
    4.0 out of 5 stars Good except for mounting holes.
    Reviewed in the United States on October 27, 2024
    Verified Purchase
    These relays have a nice skinny form factor and can be attached directly to 3.3V tolerant GPIO.

    The only negative is that the M2.5 mounting holes are too close to the edges of the board. Hardly any material forms the holes and cracking is a concern.
    Helpful
     Report
  • ben
    5.0 out of 5 stars Its definitely a relay
    Reviewed in the United States on January 15, 2025
    Verified Purchase
    These don't fit the wires you'd typically use in a Arduino project because they are too small but it's really easy to just desolder the connecter and solder your wires directly.
    Helpful
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  • Jen
    5.0 out of 5 stars Works with ESP32
    Reviewed in the United States on January 6, 2025
    Verified Purchase
    Works perfectly with my ESP32 boards
    Helpful
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  • Aleia Matthews
    1.0 out of 5 stars Does not work with 3.3V
    Reviewed in the United States on September 5, 2024
    Verified Purchase
    5/5 will not work with 3.3V, will however work with 5V. useless though considering the RPi outputs 3.3 from GPIO
    Helpful
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  • Amazon Customer
    5.0 out of 5 stars Works with esp32 dev board
    Reviewed in the United States on July 7, 2024
    Verified Purchase
    The media could not be loaded.
    I powered it using 12V DC and used it to switch a small peristaltic pump. I did not remove any of the jumpers and did not find documentation on them.

    Since I need to power the relay with the 12V DC I wish that there were simply some (+) (-) headers on the board for output. That would save me having to route the 12V into both sides of the board which feels messy.

    I hope that the video I made helps someone.
    4 people found this helpful
    Helpful
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  • kylejhill
    5.0 out of 5 stars Reliable
    Reviewed in the United States on January 14, 2025
    Verified Purchase
    I use these for all types of home automations. They trigger every time with no issue. I am very pleased with these relays.
    Helpful
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Top reviews from other countries

  • Godron Smierdzidupa
    5.0 out of 5 stars These work great
    Reviewed in Canada on October 26, 2024
    Verified Purchase
    They come attached, but are easy to split off individually if needed. They’re working great, controlled by simple GPIO pins from an ESP32 board.
    Report