---
product_id: 124731171
title: "Embedded QR Code Scanning Module USB and UART Serial Port Barcode Scanner Identification Module Bar Code Reader for Access Control, Locker Scan Code Payment etc"
brand: "maikrt"
price: "13333 som"
currency: KGS
in_stock: true
reviews_count: 7
category: "Maikrt"
url: https://www.desertcart.kg/products/124731171-embedded-qr-code-scanning-module-usb-and-uart-serial-port
store_origin: KG
region: Kyrgyzstan
---

# Infrared light for dark environments Dual USB & UART interface Ultra-low power <0.9W Embedded QR Code Scanning Module USB and UART Serial Port Barcode Scanner Identification Module Bar Code Reader for Access Control, Locker Scan Code Payment etc

**Brand:** maikrt
**Price:** 13333 som
**Availability:** ✅ In Stock

## Summary

> 🚀 Scan smarter, not harder — unlock seamless code reading everywhere!

## Quick Answers

- **What is this?** Embedded QR Code Scanning Module USB and UART Serial Port Barcode Scanner Identification Module Bar Code Reader for Access Control, Locker Scan Code Payment etc by maikrt
- **How much does it cost?** 13333 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/124731171-embedded-qr-code-scanning-module-usb-and-uart-serial-port)

## Best For

- maikrt enthusiasts

## Why This Product

- Trusted maikrt brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **All-Weather Reliability:** Operates flawlessly from -25°C to 55°C with humidity tolerance
- • **Lightning-fast decoding:** Instantly scans 1D/2D codes with intelligent image recognition
- • **Plug & Play Versatility:** Seamlessly connects via USB or UART TTL for any device
- • **Configurable Smart Scanning:** Customize settings via QR code or host commands for perfect fit
- • **Omni-directional Scan Angle:** ±60° horizontal & ±40° vertical for effortless code capture

## Overview

The MC-3000 Embedded QR Code Scanning Module is a compact, ultra-efficient 1D/2D barcode reader designed for seamless integration into access control, payment, and industrial systems. Featuring dual USB and UART TTL interfaces, it supports multi-platform compatibility (Linux, Android, Windows) and offers configurable scanning parameters via QR codes or commands. With omni-directional scanning, infrared illumination for dark environments, and robust operation across wide temperature and humidity ranges, it delivers fast, accurate decoding to power your smart projects with professional-grade reliability.

## Description

Applications Fields: Smart Access Control, Locker, Scan Code Gun, Channel Gate, Station Inspection Ticket, Smart Self-Service Terminal, Supermarket, Retail Store, POS System, Cash Registers,Warehouse Management, Conference Ticketing, etc Need to Scan 2D Codes Industry Equipment. Technical Parameters: Voltage:5V. Power:<0.9w. Communication interface:UART TTL\UART RS232\USB Scanning Mode: Omni-directional Auto Sense Scan Mode. Parameter setting method: sweep QR code setting parameter or host command setting. Work tips: Buzzer can be connected, LED indicator. Scan angle: ±60°, ±40°, ±360° (left right, front back, rotation). Decoding type: 1D/2D:Code128,UCC/EAN-128,AIM-128,EAN-8,EAN-13, ISBN/ISSN,UPC-E,UPC-A,Interleaved 2 of 5,ITF-6,ITF-14,ITF-25,Industrial 25,Standard 25,Code 39,Codabar,Code 93,Code 11,QR Code. Scan Distance:5 mil: 5 to 10cm (adjustable by customer needs). Working temperature: -25°C~55°C. Humidity: 5%~95% (Non-condensing). Dimension: 66mm x 65mm x 26.5mm.Package Includes: 1 x QR Bar code Scanner. 2 x Interface line At the same time match the USB cable and UART TTL serial cable for you to choose the interface type.If you need to know the product details, you can contact us via desertcart to send us an email.We will send you the product development materials and setup manual. The product is developed and produced by our company.The company has professional technicians to provide after-sales technical support. Please rest assured to buy; Thank you for your support and trust.

Review: Good device, reads lots of codes, lots of setup options - I have a few of these Maikrt modules and have not had any problems (been using them lightly for a couple of months). They have lots of configuration options so you can set what kinds of codes it will read, settings for feedback beeps, lights, timers, volume, and settings for the data, character timing for HID mode, data termination (can't be set to anything you want but it can be set to CR, LF, or both, or none). Very flexible. You can configure it by scanning QR codes or sending commands (I've only done it via QR). I always use the module in USB mode but I wanted to try the same test as the other gentleman who was having problems so I connected it to an Arduino and set it for UART/TTL mode and ran that same sample program he was using and it worked fine for me using the program as-is and all the defaults on the scanner module. I don't know why his was not working. FYI, I am using a Zulkit ABS enclosure also purchased from desertcart.
Review: Instructions are easy. - This QR code systems works just as intended with USB. Very well put together. It comes with a cable to help you attach it to your custom circuit as well. WARNING! No where does it say that it operates on 3.3V for the logic levels on TX and RX. I used a translator, because the operating voltage specified was 5V. So I assumed the logic was also at 5V. Since this is true, I would not recommend plugging the TX line from an Arduino UNO into the RX line of the QR code reader as without more data , this could potentially damage the device. The seller of this QR code reader needs to specify that it operates at 3.3V logic with a 5V power supply to it.

## Features

- A small 1D/2D codes reader,Can be embedded in any device for scanning code to identify other items, by using the intelligent image recognition algorithm.Configurable via scanning 'configuration code',Module matching light source, Can work in the dark.
- Embedded QR code scanning module is used for access control, channel gate, locker, scan code payment, etc. And other industry equipment to achieve smart project,The performance is stable and the decoding speed is very fast.
- 2D/QR code scanning module support linux,Android, windows and other systems, Can easily capture bar codes 1D, 2D on labels, paper, and mobile phone or computer displays,Sensitive and accurately.
- USB and TTL dual interface, equipped with 9pin terminal line and USB cable, which is convenient for you to convert between UART TTL serial port and USB interface. No need to worry about the use of interface types.
- After receiving our products, connect to the line, after power-on That can scan the code;The module scans the code directly and sends the result to your host computer automatically. After receiving the data, the host computer can proceed to the next step.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07GVMKPQT |
| Best Sellers Rank | #178,746 in Office Products ( See Top 100 in Office Products ) #409 in Bar Code Scanners |
| Customer Reviews | 4.4 4.4 out of 5 stars (15) |
| Date First Available | August 27, 2018 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 2.08 ounces |
| Manufacturer | MC-3000 |
| Product Dimensions | 1.04 x 2.59 x 2.56 inches |

## Product Details

- **Brand:** Maikrt
- **Compatible Devices:** Desktop, Laptop, Smartphone
- **Connectivity Technology:** RS232, USB Cable
- **Power Source:** Corded Electric,Usb Cable
- **Product Dimensions:** 1.04"D x 2.59"W x 2.56"H

## Images

![Embedded QR Code Scanning Module USB and UART Serial Port Barcode Scanner Identification Module Bar Code Reader for Access Control, Locker Scan Code Payment etc - Image 1](https://m.media-amazon.com/images/I/41973Knm-fL.jpg)
![Embedded QR Code Scanning Module USB and UART Serial Port Barcode Scanner Identification Module Bar Code Reader for Access Control, Locker Scan Code Payment etc - Image 2](https://m.media-amazon.com/images/I/41zLR387egL.jpg)
![Embedded QR Code Scanning Module USB and UART Serial Port Barcode Scanner Identification Module Bar Code Reader for Access Control, Locker Scan Code Payment etc - Image 3](https://m.media-amazon.com/images/I/51PjKOmoUqL.jpg)
![Embedded QR Code Scanning Module USB and UART Serial Port Barcode Scanner Identification Module Bar Code Reader for Access Control, Locker Scan Code Payment etc - Image 4](https://m.media-amazon.com/images/I/51a0K3d92RL.jpg)
![Embedded QR Code Scanning Module USB and UART Serial Port Barcode Scanner Identification Module Bar Code Reader for Access Control, Locker Scan Code Payment etc - Image 5](https://m.media-amazon.com/images/I/41wlgcfGyaL.jpg)

## Questions & Answers

**Q: Buenos dias, este sirve para arduino?**
A: Si, se conecta por USB

**Q: Comes with uart cable? or just usb?**
A: Mine came with the connector to the scanner itself that had bare wires attached. It let me connect directly to my project. It does not have any DB9 or DB25 if that’s what you are asking. A pigtail of individual wires was much more versatile. Yes, serial was one of them. I cannot guarantee what yours will have, I am not the manufacturer or distributor.

**Q: where can I found the full config manual?**
A: The unit comes with very basic manual, that provides an email to support for more in depth configurations. They answered all my questions thoroughly and fast, including sending the complete configuration manual with all the codes.

I would recommend this item and the manufacturer.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good device, reads lots of codes, lots of setup options
*by M***Y on February 21, 2023*

I have a few of these Maikrt modules and have not had any problems (been using them lightly for a couple of months). They have lots of configuration options so you can set what kinds of codes it will read, settings for feedback beeps, lights, timers, volume, and settings for the data, character timing for HID mode, data termination (can't be set to anything you want but it can be set to CR, LF, or both, or none). Very flexible. You can configure it by scanning QR codes or sending commands (I've only done it via QR). I always use the module in USB mode but I wanted to try the same test as the other gentleman who was having problems so I connected it to an Arduino and set it for UART/TTL mode and ran that same sample program he was using and it worked fine for me using the program as-is and all the defaults on the scanner module. I don't know why his was not working. FYI, I am using a Zulkit ABS enclosure also purchased from Amazon.

### ⭐⭐⭐⭐⭐ Instructions are easy.
*by D***D on October 6, 2023*

This QR code systems works just as intended with USB. Very well put together. It comes with a cable to help you attach it to your custom circuit as well. WARNING! No where does it say that it operates on 3.3V for the logic levels on TX and RX. I used a translator, because the operating voltage specified was 5V. So I assumed the logic was also at 5V. Since this is true, I would not recommend plugging the TX line from an Arduino UNO into the RX line of the QR code reader as without more data , this could potentially damage the device. The seller of this QR code reader needs to specify that it operates at 3.3V logic with a 5V power supply to it.

### ⭐⭐⭐⭐⭐ Excellent QR scanner!
*by A***R on April 7, 2024*

Reach out to the maker to get the programming instructions! So many features, but also works really well out of the box. I'm using it on a production line for quality control and it has been very fast and accurate. I recommend turning off the onboard light and using a LED panel light at a low angle if you have any scan reliability issues (I'm scanning a QR code through reflective plastic!)

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-03-17*