Question 1

Where is EDOO located?

Accepted Answer

Shenzhen, China — a 30-minute drive from Bao'an International Airport. Factory visits welcome with advance appointment. Add: Room 528.--531, 5th Floor, Building C, New Retail Digital Industrial Park, Nanchang Community, Xixiang, Bao'an District, Shenzhen

Question 2

What are the advantages of EDOO M2 dual-core CPU QR code barcode scanner module?

Accepted Answer

1、Dual-core parallel computing, faster decoding speedOne CPU processes images, the other runs decoding algorithms independently. Greatly improves operation efficiency, faster response, stable performance under high-concurrency & heavy-duty scanning scenarios.2、Strong anti-interference & excellent recognition for low-quality codesSpecial optimized algorithm for wrinkled, blurred, stained, reflective incomplete QR/barcodes. Higher recognition success rate than mainstream compet...

Question 3

What is the smallest barcode scanner engine EDOO makes?

Accepted Answer

The M0 and M1 barcode scanner module measures just 21.5mm*8.5mm*7.1mm — suitable for ultra-compact devices like wearable scanners and handheld PDAs and Tablets.

Question 4

How to choose barcode scanner modules interface between USB and TTL232 interfaces?

Accepted Answer

Our barcode scanner modules are equipped with two communication interfaces as standard: USB interface and TTL232 interface or RS232 , to meet different device connection and communication requirements.Both interfaces support normal data communication for barcode scanner module. We strongly recommend using the TTL232/RS232 interface as the preferred and default option. The main reason is communication stability.The TTL232/RS232 interface provides much higher stability than the...

Question 5

How To Select A Embed Barcode Scanner Module for Self-service Machines & Access Control

Accepted Answer

I. Core Characteristics of Application ScenariosSelf-service machines and access control devices share the same usage logic: users hold a QR code and take the initiative to approach the code reader to complete recognition.The entire process is fully operated by users independently. The fluency and ease of scanning directly determine the user experience, and also directly affect the reputation and quality of the entire equipment. Therefore, the adaptability of the QR code modu...

Question 6

FAQ for Dual-CPU Architecture 2D barcode Scanner

Accepted Answer

With the accelerated digitalization of fields such as the Internet of Things (IoT), industrial manufacturing, and smart logistics, the difficulty in reading non-standard QR codes (such as blurred, distorted, and stained ones) has long been a key bottleneck restricting the efficiency of industrial data collection. Our company's world's first dual-CPU architecture dual-core high-performance QR code scanner has achieved a comprehensive leap in decoding performance through techno...

Question 7

How to Choose Android Industrial PDA | A Comprehensive Buying Guide (All Scenarios)

Accepted Answer

Android industrial PDAs serve as core data collection terminals across warehousing & logistics, field operations, manufacturing, retail inventory and other industries. The performance of handheld devices directly affects the overall working efficiency of frontline employees. However, the current market features various PDA models with uneven configurations, making it difficult for most purchasers to select the most suitable terminal for specific business scenarios.Combined wi...

Question 8

Do you support OEM and ODM services? What is the minimum order quantity (MOQ)?

Accepted Answer

We fully support customized OEM and ODM services. We can customize exclusive IoT devices and supporting solutions according to customers' brand requirements, application scenarios and functional demands.We have flexible MOQ standards for different customization types: Label customization: MOQ=1, support sample and small-batch customization.Software customization (device system, scanning program, function adaptation, etc.): MOQ=100.Hardware customization & packaging box custom...

Question 9

What is a OCR passport reader and how does it work?

Accepted Answer

Q: What is a passport reader and how does it work?A: A passport reader is an electronic device designed to read and decode the information stored in a passport's machine-readable zone (MRZ). It typically uses optical character recognition (OCR) technology to capture the data, such as the passport holder's name, nationality, and passport number. The data is then processed and can be integrated into various systems for verification and record-keeping. Passport readers are essen...

Question 10

How does a PDA barcode scanner differ from a traditional barcode scanner?

Accepted Answer

Q: How does a PDA barcode scanner differ from a traditional barcode scanner?A: A PDA barcode scanner integrates the functionality of a barcode scanner with the features of a personal digital assistant (PDA). Unlike traditional barcode scanners, which may be stationary or require a direct connection to a computer, PDA barcode scanners are portable and allow users to scan barcodes on the go. They often come equipped with a touchscreen interface, enabling users to manage invento...

Question 11

What are the benefits of using a PDA barcode scanner?

Accepted Answer

Q:What are the benefits of using a PDA barcode scanner?A: A PDA barcode scanner combines the functionalities of a personal digital assistant (PDA) with barcode scanning capabilities. This device allows for efficient data collection and inventory management in various industries. The benefits of using a PDA barcode scanner include increased accuracy in data entry, reduced labor costs, and enhanced productivity. Since these scanners are portable, they enable users to scan barco...

Question 12

Parameter Comparison between EDOO M2 and Newland N1-ER

Accepted Answer

https://zhuanlan.zhihu.com/p/2049853001779639973

Question 13

How to connect to a Bluetooth ring barcode scanner?

Accepted Answer

Please watch the video.https://youtube.com/shorts/lv_jb-YHpVg

Question 14

RS232 barcode scanner module: an engineer's cheat-sheet to the interface labels

Accepted Answer

The interface row on a scan-engine datasheet is the least trustworthy line on the document. "USB, RS232, TTL232" appear in the same font and the same column width, and each means something different at the next vendor's table. A buyer orders an rs232 barcode scanner module expecting ±12 V on a DB-9, receives 3.3 V logic on a five-pin JST, and finds out with a scope — or with a dead input stage. What an interface label is not telling you A label conflates four independent deci...

Question 15

58mm vs 80mm receipt printer: the width decides the ticket

Accepted Answer

A 58 mm printer and an 80 mm printer will both produce your line items, your totals and your logo. They will not both do it legibly, at your volume, with a tax layout that would satisfy an inspector. The number in the name is the paper width, and it reaches into everything else: characters per line, how often the roll runs out, whether the footer barcode still scans, whether there is a cutter at all, and what you pay per ticket. Buyers choose on the look of a printed sample o...

Question 16

Receipt printer not printing: a troubleshooting flow for the person on shift

Accepted Answer

Most "the printer is broken" calls are not broken printers. They are paper in the wrong way round, a queue on a shared PC that fell asleep, an address that changed over the weekend, or a job too big for the buffer. Work it in order: cheapest check first, one branch decision at a time. Two minutes of triage Ask whoever noticed it three things. One printer or all of them? More than one machine gone quiet at the same time in one building is a network or POS-server fault, not a p...

Question 17

IP65, IP67 and drop tests: what a rugged handheld terminal actually certifies

Accepted Answer

Three numbers do most of the selling on a rugged Android handheld: an IP code, a drop height, and the phrase "MIL-STD-810 tested". All three are real engineering artefacts, and all three get quoted in a way that means something different from what the buyer needs to know. The gap is mostly shorthand rather than dishonesty — a rating certifies a test, a test certifies conditions, and your depot is not those conditions. This decodes those claims: what each digit of IEC 60529 is...

Question 18

Fixed mount barcode scanner or handheld: the decision is labour, not hardware

Accepted Answer

The honest answer to this comparison is uncomfortable for a hardware vendor: the reader type is rarely the thing you are buying. You are buying either an operator who keeps both hands on the goods, or a device that follows the work to wherever it is. Price, first-read rate and symbology coverage are close neighbours between a good fixed unit and a good handheld; what differs is who does the aiming, where the device lives, and what infrastructure has to exist for it to keep wo...

Question 19

Barcode vs RFID: the decision rule, not the debate

Accepted Answer

"Barcode versus RFID" is the wrong question, and it is the one every operations lead gets handed with a budget and a date. The two technologies are not competing for the same job: one identifies the item you are looking at, the other identifies a population you are not looking at. Put that straight and the decision becomes arithmetic about process discipline, per-unit consumables and who owns the tagging step — not a datasheet shoot-out. The difference that decides everything...

Question 20

CE, FCC and RoHS: the compliance questions a barcode-scanner importer hits

Accepted Answer

This is engineering guidance from someone who has to get hardware across a border, not legal advice, and it assumes you confirm each item with your own accredited test house or regulatory counsel: directives are amended, enforcement practice differs by country, and the standard edition your lab quotes may not be the one a market-surveillance officer expects. What is stable is the shape of the problem — which document answers which question, who signs it, and what makes it sto...

Question 21

Handheld computer, PDA, mobile computer or data collector: four names, one box

Accepted Answer

Ask four suppliers for a handheld computer and you will be quoted four datasheets, three of which call the same device something else. The nouns in this corner of the market are not product classes; they are fossils. Each entered use through a different door — a consumer category from the early 1990s, a Microsoft device class, the warehouse-terminal trade, and the stock-control vocabulary of retail ERP — and none was ever retired. The same box reaches you as a PDA, a handheld...

Question 22

PDA scanner datasheet specs: the six printed lines that decide whether your team can use the device

Accepted Answer

A PDA scanner datasheet runs to forty rows, thirty of them identical across every supplier: processor, memory, screen, battery, Android version, ingress class, radios. Those rows are not why a pilot fails. The scan-performance rows are — one or two each, printed without conditions, and skipped during the walkthrough. The numbers are not fake. They are real measurements taken on somebody else's label, at somebody else's distance, under somebody else's light, and the gap to you...

Question 23

Barcode PDA with a built-in printer: when is on-device printing worth it?

Accepted Answer

A barcode PDA that prints in the hand solves a real problem: the person holding the device is the person who has to hand over the paper. It also puts a stepper motor, a heater, a platen roller, a paper bay and a hinged lid inside a tool whose job is to be dropped, run all shift on one charge and read damaged labels. Honest position first: on a mobile computer with a receipt printer, the printer is usually the first thing to fail. That is not a reason to avoid it — it is the r...

Question 24

QR code scanner: what the hardware actually is

Accepted Answer

Search for a QR code scanner and the results split into two populations that share a phrase. One is software: a page that opens your phone camera and reads the code on a poster. The other is a hardware catalogue of handheld guns, desktop boxes and tiny modules, labelled "2D imagers". They are not competing answers to different questions; they are the same technology seen from opposite ends. Accept that and three things become obvious: why a laser code scanner cannot read a QR...

Question 25

How to Scan a Barcode: Why Scans Fail and How to Fix Each Symptom

Accepted Answer

A failed scan is rarely a broken device. A reader returns nothing for one of two reasons: light is not arriving back at its sensor in a form the decoder can use — wrong angle, wrong light, wrong surface — or the symbol really is worse than the print that left the press. Everything a shift lead can fix is fixed with aim, illumination and presentation, not with settings. Work the sections in order — aim, light, label, placement, screens — because that order is also the cost ord...

Question 26

Barcode reader or barcode scanner: does the word on the datasheet decide anything?

Accepted Answer

Short answer: no. "Reader" and "scanner" name the same function — turn an optical symbol into a decoded data string and hand it to something else — and neither word is a specification line. What they do carry is an audience. A supplier writing "reader" is usually writing to whoever integrates the device into a machine; a supplier writing "scanner" is usually writing to whoever holds it. That difference is real, it is visible in every catalogue, and it changes nothing about wh...

Question 27

USB, Bluetooth or Wireless: Which Scanner Connection Your Application Actually Needs

Accepted Answer

A scanner is usually bought as a cable question: USB barcode scanner, or Bluetooth one? It is not the question that decides whether your data arrives. Two units with different connectors can behave identically at the operating-system layer, and two with the same connector can behave as a keyboard typing into whichever field has focus, as a serial port invisible until an application opens it, or as nothing at all until a vendor application is running. At a till, where one fiel...

Question 28

Laser vs Imaging Barcode Scanners: How They Read, and What the Eye-Safety Answer Really Is

Accepted Answer

Almost every question in this category starts with a red line. Someone aims a handle at a pallet, sees a bright streak cross their hand, and asks whether that is a laser in the eye — and whoever specified the device usually cannot answer, because it was bought as "the cheap 1D scanner". The two halves of that question have different owners. Whether the light is hazardous is a standards and documentation question with a precise answer; whether the device reads the codes you ac...

Question 29

Thermal paper vs synthetic label material: choose the media by how the label lives

Accepted Answer

Thermal paper is a paper base carrying a heat-sensitive coating, so it prints on a direct thermal printer and suits short-life, indoor labels. Synthetic label material is a plastic film — polypropylene, polyester or vinyl — chosen when a label must survive water, handling, solvents or outdoor years. Buy the media by where the label lives and how long it must stay readable. In short: Thermal paper is a paper facestock coated with a heat-sensitive layer, so it works only as a d...

Question 30

How does a thermal printer work without ink? The mechanism from print file to label

Accepted Answer

A thermal printer works without ink because the image is not laid onto the media — it is developed inside the media. In direct thermal printing a head heats one line of dots at a time, and heat-sensitive paper or label stock darkens only where a dot is warmed. No ink, toner or ribbon sits between the head and the label. In short: A direct thermal printer forms its image by pressing a heated line of dots against heat-sensitive media, which darkens where it is warmed; no ink, t...

Question 31

Barcode printer vs label printer vs thermal printer: what each word actually names

Accepted Answer

Ask four suppliers for a barcode printer and four boxes may arrive, because the words buyers use are not one taxonomy. "Thermal" names a machine's engine, "label" and "receipt" name what comes out of it, and "barcode" names only the content on the printout — and an RFQ built on a single noun quietly lets the supplier decide which of the four you meant. In short: "Thermal printer" names a machine class defined by its engine: the image is formed with heat from a print head rath...

Question 32

Portable thermal printer with Bluetooth: what actually works on the road

Accepted Answer

A portable Bluetooth thermal printer prints reliably when three things are decided before the order: which Bluetooth transport carries the job, where the offline queue lives when the link drops, and how the paper path behaves in gloves, cold and a moving vehicle. Connectivity class, reconnect behavior, battery class and paper handling — not the pairing screen — decide whether mobile printing survives a shift. In short: A portable thermal printer on Bluetooth Classic SPP (Seri...

Question 33

Thermal Printer Head Replacement: What Destroys a Print Head, and When Replacing One Pays

Accepted Answer

A thermal print head wears from contact, not hours: abrasive stock, liner edges, adhesive residue and dry-paper static destroy heating elements until dead dots leave a light vertical streak in the same place on every print. Thermal printer head replacement pays when the supplier sells the head as a spare and a proper clean does not clear the streak.In short:A thermal print head is a row of resistive heating elements on a ceramic strip under a protective coating, worn out by a...

Question 34

What is a ring scanner? The device, its mounts and its words

Accepted Answer

A ring scanner is a barcode reader worn on a finger — an imaging window, an illuminator, a decoder, a cell and a radio in one small body — paired with a phone, a handheld computer or a wireless receiver. It is one of four wearable mount classes, and it covers labels near the fingertip rather than replacing a station reader.In short:A ring scanner wears the reader on one digit, so the scan axis follows the finger; EDOO's ring pages state weights of 18 g (AI1520), 35 g (R43), 3...

Question 35

Hands-free barcode scanner types: choose by hands and label position

Accepted Answer

A hands-free barcode scanner is a reader that needs no hand to hold, aim or squeeze: it is either worn — ring, glove or wrist — or mounted, so the label is brought to it. EDOO's answer is chosen by two questions: where the worker's hands are during the read, and where the label sits. In short: A hands-free barcode scanner passes two tests: no hand is occupied holding the reader, and the read starts without a worker aiming or squeezing it.The worn classes are finger ring, glov...

Question 36

Cold storage scanning: what a wearable barcode scanner actually survives in a freezer

Accepted Answer

Cold storage scanning fails on transitions, not on cold. A wearable can read reliably inside a frozen zone, then lose its optic to condensation in the dock, refuse charge current as a cold cell, and drop contrast on frosted or wrapped labels. Those are four separate failure events, each with a different control. In short: The R42 ring scanner is the only wearable in EDOO's range whose page publishes an operating temperature row: "-20℃ to 50℃ (-4°F to 122°F)", under a storage...

Question 37

Wearable scanner for parcel delivery: what a delivery round actually demands

Accepted Answer

A wearable scanner earns its place on a delivery round when three things are specified for a vehicle rather than a warehouse: which device is the host, where scans wait when the signal dies, and how the unit is charged and handed between drivers. Everything else — optics, mounts, picking economics — is the same problem the distribution center already solved. In short: The delivery host is either the driver's phone, which is the topology the R43 page describes when it states t...

Question 38

Ring scanner cost: what a wearable quote is made of, and what an OEM order changes

Accepted Answer

A ring scanner cost is ten separable lines: radio and mode set, engine class, screen or none, the cell and its chemistry, sizing kit and straps, firmware symbology set, SDK or wedge output, housing and branding, certification scope, packaging. Two units that photograph alike differ because those lines differ, and an OEM order moves several onto your purchase order. In short: A wearable quote is read as line items with named components, not as one bundled figure you cannot re-...

FAQ

Thermal Printer Head Replacement: What Destroys a Print Head, and When Replacing One Pays

15:42, 15 10 2026

USB, Bluetooth or Wireless: Which Scanner Connection Your Application Actually Needs

14:03, 09 10 2026

Laser vs Imaging Barcode Scanners: How They Read, and What the Eye-Safety Answer Really Is

14:03, 09 10 2026

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