Micro USB 5V LCUS-4 4 Channel USB Relay Module Smart Switch Serial Port BSG

$19.99
  Availability: In Stock
  Shipping: Free Airmail 
  Estimated Delivery: 
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    Handling Time

    Before we can ship your order, we prepare your products, do strict quality-control tests and carefully package the items. The time it takes to prepare your items for shipping is separate from the delivery time. It usually takes 1-3 business days to ship out .

    Shipping Methods

    You can choose the preferred shipping method on the cart page during the checkout process. We offers 3 international shipping methods:

    1. Airmail – Free untracked economy shipping via national postal services (HK Post, Singapore Post, China Post, PostNL, Swiss Post, Sweden Post, USPS, Royal Mail e.t.c.)
    2. Airmail Registered – Tracked shipping via national postal services (HK Post, Singapore Post, China Post, PostNL, Swiss Post, Sweden Post, USPS, Royal Mail e.t.c.)
    3. Expedited Shipping – Express shipping with courier delivery (DHL, UPS, FedEx, TNT)

    Delivery Time

    Airmail and Airmail Registered Area Estimated Delivery Time
    United States, Canada 7-25 business days
    Australia, New Zealand, Singapore, United Arab Emirates 10-25 business days
    United Kingdom, France, Spain, Germany, Netherlands, Japan, Belgium, Denmark, Finland, Ireland, Norway, Portugal, Sweden, Switzerland 10-25 business days
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    Other countries 10-35 business days
    Expedited Shipping 3-10 business days to Worldwide

    Note: If you choose an expedited shipping, please remember to leave a valid contact number, this is required for expedited shipping’s courier delivery.

  •  Returns & Refund

    Last updated October 05, 2022

    Returns

    If you are not completely satisfied with your purchase for any reason, you may return it to us for a full refund within 15 days from delivery date. All returned items must be in new and unused condition, with all original tags and labels attached.

    Return Process

    To return an item, please email our customer service at sales@alexnld.com to obtain a Return Merchandise Authorization (RMA) number. After receiving a RMA number, place the item securely in its original packaging, and mail your return to the following address:

    Alex NLD
    Attn: Returns
    RMA #
    HaGiborim St 8
    Tiberias, 14388
    Israel

    Please note, you will be responsible for the return shipping charges. We strongly recommend that you use a trackable method to mail your return.

    All customers should contact us and obtain Return Merchandise Authorization (RMA) number before sending anything to us. We will not be responsible for returned item(s) without notifying us in advance.

    Refunds

    After receiving your return and inspecting the condition of your item, we will process your refund to the credit / debit card or PayPal account which was used to place the original order.

    Please allow at least seven (7) days from the receipt of your item to process your refund. Refunds may take 1-2 billing cycles to appear on your credit card statement, depending on your credit card company. We will notify you by email when your refund has been processed.

    Exceptions

    If an item is found damaged or defective on receipt, we kindly ask you to contact us within 15 days from the delivery date to arrange a refund or exchange without physical return of the item.

    Please provide us with following:

    1. Photos of the front and back sides of the packaging box;
    2. A photo, video or screenshot of the defective item or the defective part of the parcel.

    Our customer service team will communicate with you to arrange a refund or reshipment without physical return of the item.

    Warranty & Repair service

    If any of the items you have purchased from us is found defective within 1 year from receipt, you are entitled to a repair under warranty. Please kindly provide us with evidence photos or videos of the defective item. After providing such information to our Customer Service team  and the problem is acknowledged, you can send the items back to us for a repair.

    Note:  Please be aware, we do not cover the cost of the returns fees in  warranty & repair service.

    Order Cancellation

    If you want to cancel an order within 24 hours from confirmation of the payment, you will be entitled to a full refund. It is still possible to cancel an order after 24 hours, provided that it has not yet been shipped. If an order has been shipped, it’s impossible for us to cancel or modify it anymore. If you still want a refund, you required to return the item on it’s arrival.

    Questions

    If you have any questions concerning our return policy, please contact us at:

    +972 054-536-2888
    sales@alexnld.com

     


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Features:

1. Onboard 8-bit high performance microcontroller chip.
2. Onboard CH340 USB to serial port control chip.
3. Onboard power LED indicator and relay status LED indicator.
4. Support relay switch status checking, command: 0xFF.
5. On-board 5V, 10A/250VAC, 10A/30VDC 4 channel relay, long life of relay up to 100,000 times continuously.
6. Power supply voltage: 5V, support USB power supply and external power supply switching.
7. Output type: relay switch signal;
8. The module contain over-current protection and relay diode freewheel protection.

1. Hardware Introduction:

Board size: 56*63mm

Interface on Board
(1) External power supply port: connect DC5V power. Due to the limited USB output current, it is recommended to use external power supply when more than 2 relays are using;
(2) USB power supply / external power supply switching: ‘Usb_P’ for USB power supply, ‘Ext_P’ for external power supply;
(3) USB socket: USB connect / power supply;
(4) Reserved USB interface.

Interface on Relay:
COM1: Common port
NC1: Normally closed port
NO1: Normally open port
COM2: Common port
NC2: Normally closed port
NO2: Normally open port
COM3: Common port
NC3: Normally closed port
NO3: Normally open port
COM4: Common port
NC4: Normally closed port
NO4: Normally open port

2. Instruction:

2.1 Communication protocol
The default baud rate is 9600 bps.
Commands for relay operation or status inquiry (in HEX):
Open 1st channel USB: A0 01 01 A2
Close 1st channel USB: A0 01 00 A1
Open 2nd channel USB: A0 02 01 A3
Close 2nd channel USB: A0 02 00 A2
Open 3rd channel USB: A0 03 01 A4
Close 3rd channel USB: A0 03 00 A3
Open 4th channel USB: A0 04 01 A5
Close 4th channel USB: A0 04 00 A4
Status inquiry: FF

2.2 Operation
(1) Choose power supply


●External power supply: Connect USB to the computer, the toggle switch to the ‘Ext_P’, DC connect to external 5V power supply.

Tips: When the toggle switch to ‘Ext_P’, please remember to connect the external 5V power supply, otherwise the relay indicator will light but the relay will not work!!!
(2) Install the serial port driver: install the CH340 USB to serial port driver for the first use.
(3) Open the serial port debugging software such as SSCOM32, select the baud rate of 9600, and send the command in hexadecimal (hex) format to open or close the corresponding relay. You can choose to send manually or automatically.

Package included:

1 x USB Relay Module

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