--- product_id: 60059282 title: "1 Channel 3V Relay High Level Driver Module Optocoupler Relay Module for ESP8266 Based Board" brand: "chenbo" price: "106 zł" currency: PLN in_stock: true reviews_count: 8 url: https://www.desertcart.pl/products/60059282-1-channel-3v-relay-high-level-driver-module-optocoupler-relay store_origin: PL region: Poland --- # 1 Channel Control 3V Power Input Optical Isolation 1 Channel 3V Relay High Level Driver Module Optocoupler Relay Module for ESP8266 Based Board **Brand:** chenbo **Price:** 106 zł **Availability:** ✅ In Stock ## Summary > 🔗 Connect, Control, Conquer! ## Quick Answers - **What is this?** 1 Channel 3V Relay High Level Driver Module Optocoupler Relay Module for ESP8266 Based Board by chenbo - **How much does it cost?** 106 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/60059282-1-channel-3v-relay-high-level-driver-module-optocoupler-relay) ## Best For - chenbo enthusiasts ## Why This Product - Trusted chenbo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **High Reliability:** Photoelectric isolation provides enhanced protection and reliability. - • **Seamless Integration:** Easily connects to microcontroller IO ports for effortless control. - • **Wide Detection Range:** Detects current from DC0-25V, making it versatile for various applications. - • **Robust Anti-Interference:** Double power selection design ensures strong resistance to interference. - • **User-Friendly Instructions:** Comes with clear instructions for quick setup and operation. ## Overview The 1 Channel 3V Relay High Level Driver Module is an advanced optocoupler relay module designed for seamless integration with ESP8266-based boards. It features a robust double power selection design for superior anti-interference capabilities and offers a wide detection range of DC0-25V, ensuring high reliability and ease of use. ## Description Feature 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 Description Size: 70mm X17mm X20mm (LxWxH) Main chip: EL817, SRD-DC03V-SL-C Work voltage: DC 3V/3.3V Control 10A 250VAC, 10A 30VDC load Package:2 pcs Note: When the jumper cap connected, the relay working power supply will also as the signal power supply, when not connected, the relay and signal power supply is isolated. ## Features - 1 Channel 3V Relay High Level Driver Module Optocoupler Relay Module Isolated Drive Control Board - 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 ## Product Details - **Current Rating:** 10 Amps - **Brand:** CHENBO - **Operation Mode:** Automatic - **Coil Voltage:** 3 Volts - **Contact Current Rating:** 10 Amps ## Images ![1 Channel 3V Relay High Level Driver Module Optocoupler Relay Module for ESP8266 Based Board - Image 1](https://m.media-amazon.com/images/I/61OSQJOPuDL.jpg) ![1 Channel 3V Relay High Level Driver Module Optocoupler Relay Module for ESP8266 Based Board - Image 2](https://m.media-amazon.com/images/I/61AKTJd+KML.jpg) ![1 Channel 3V Relay High Level Driver Module Optocoupler Relay Module for ESP8266 Based Board - Image 3](https://m.media-amazon.com/images/I/61QedmLghIL.jpg) ![1 Channel 3V Relay High Level Driver Module Optocoupler Relay Module for ESP8266 Based Board - Image 4](https://m.media-amazon.com/images/I/61Sb552D6NL.jpg) ![1 Channel 3V Relay High Level Driver Module Optocoupler Relay Module for ESP8266 Based Board - Image 5](https://m.media-amazon.com/images/I/61UDRV7lliL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Control power to 3d printer *by L***I on February 27, 2019* I needed a way to control the power on my prusa i3 mk3 printer with octoprint.Octoprint has a plugin named PSU.My octoprint is running on a PI 3B+.The relay runs on 3v.Perfect for the gpio pin on the PI.Works perfectly and I highly recommend this relay for the PI. ### ⭐ DO NOT BUY: Flawed Design *by A***R on June 6, 2020* I bought 4 of these. ZERO of them work.Powering these with 3.3V and using a digital 3.3V output from an MCU, these relays show the LED blinking, but the relay does not switch.As others have said, these are defective. DO NOT BUY. ### ⭐⭐⭐⭐⭐ Works well *by C***R on May 24, 2019* Super easy to use and worked great. I’ve had one in switching for a few weeks now with no problem on an RPi Zero --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/60059282-1-channel-3v-relay-high-level-driver-module-optocoupler-relay](https://www.desertcart.pl/products/60059282-1-channel-3v-relay-high-level-driver-module-optocoupler-relay) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-18*