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We need the Cronus API and I’m not sure if we can use it. Can Cronus API run on Raspberry Pi OS?

Yes sure, .NET now is cross platform. I need to release a VIP project this month, so the API TODO work will be committed in next month.

Is there any Sertag Esl system description available and is on-premise or cloud solution?

Sertag electonic shelf labels sysytem based on Net 6.0 or later.it is the third generation ESL products (ESL gen3) named eRetail 3.0. eRetail 3.0 can be simply divided into three parts: 1DataSync / API、2eRetail 3.0和3hardware devices. Among them, API is Restful style web API, which is responsible for providing interface for customer system to actively push commodity data; Data sync is a background service that actively grabs data from the customer system (such as database, WebAPI, Excel, etc.); SDK is responsible for managing commodity data, hardware equipment information, scheduling price change tasks etc. The hardware includes wireless communication base station, tag and related network equipment. You can read the file attached for detail information about the system structure. Sertag eRetail3.0 Management System User Manual eRetail 3.0 system Introducton 

Our backend is in Java not .net , can we choose Sertag middleware to develop our own system ?

As a professional electronic shelf labels manufacturer, Sertag can provide flexible solutions for system integrators.so Java or .Net are both oka Restful API package project, which encapsulate the Cronus project. If your project is using other languages like Java, Python and NodeJS etc., you can use HTTP POST to push data to the Cronus.API. Cross platform support. Here is the middleware document for you , please check it. ESL Gen 3.0 Middleware Developer Manual

Can you provide SDK datapackage for us ?We want to develop our software to connect the Sertag ESL?

Most of Sertag are system integrators, because they want to develop their own software to connect with Sertag's hardware to realize the function of digital tag change. As a professional electronic shelf label manufacturer, we can not only provide a complete oelectronic shelf label systems, but also provide SDK datapackage (we call it middleware) for system integrators,that means the middleware just receives the data that they need to send, and Sertag is responsible for finding the base station to send it. Middleware is equivalent to a sender with an API interface (a program that sends data to the base station).System integrator team donot need Sertag electronic shelf labes system , they can develop electronic shelf labels system by themselves or hook up with their system.Here is the middleware document ,please check it ESL Gen 3.0 Middleware  Developer Manual

Does Sertag electronc shelf labels system only work based on cloud server or other methods?

In order to facilitate the needs of customers in different scenarios, Sertag's electronic shelf label system can be divided into two modes: cloud platform and local server. The advantage of the cloud platform is that it is convenient for centralized management, and the situation of each area can be fully understood through remote operation. Of course, some customers are only applicable in a single environment, and it is most suitable to choose local server.If you want to get more inforamtion about Sertag electronic shelf labels system, you can download it . Sertag electronic shelf labels system manual

How about the MOQ of electronic labels ?

Compared with MOQ, we pay more attention to customer experience.Therefore, for each product, we provide our customer with a test kit. Customers can purchase only the smallest unit of hardware (1pc), and we provide software testing for free. Customers have a full understanding of our products, and finally determine whether to follow-up cooperation.

Could you help me find the suitable solution for my digital smart tags project ?

Of course .Sertag is a global supplier of electronic shelf labels,smart tags,location card.providing professional one-stop service for system integrators and final users.We have different electronic shelf labels solutions such as RF solution,bluetooth solution,NFC solution,WIFI solution for high-class products in healthcare, warehouse, office, retail and other consumption sectors.So you can send mail to us :sales@sertag.comOr Click the linkhttps://www.eslmfg.com/contact-us.htmWe can contact with us , and share your needs .we will provide the suitable electronic labels for you .

When can i get the price?

As you known ,Sertag is a professional digital smart tags manufacturers. so we can proivde different solution electronic tags for you .When providing you with a quotation, we need to understand your specific needs so that the quotation is true and accurate.Therefore, you can contact us directly or send us an email, and we will provide the quotation and the technical services you need as soon as possible.Here is mailbox: sales@sertag.com, you can send mail to us Or here is the link for you https://www.eslmfg.com/contact-us.htm

Is it can communication between your (ESL Gateway) and my Server for updating image of ESL tags ?

As a professional electronic shelf labels manufacter ,we can realize the funtion that means we can provide the middleware for you. The middleware just receives the data that you need to send, and we are responsible for finding the base station to send it. Middleware is equivalent to a sender with an API interface (a program that sends data to the base station)If you want to get more information about our product ,you can contact with us ,or click the link to get more technical documentshttps://www.eslmfg.com/comm02/Specification.htm

Can you provide an SDK to use Sertag electronic shelf labels cloud Platform?

The running ESL Cloud Platform temporarily does not provide SDK (The future maybe provide it). But we provide an API that can access to the Cloud Platform. We want to give customers a simple access method, or use the system software as a middleware without further development and improve efficiency,Our API does not overly expose the logic of the entire platform, only for like updating images, changing goods data and etc,.You can click the link to get more information about Sertag electronic shelf labels technical documentshttps://www.eslmfg.com/comm02/Specification.htm

Is Sertag retail ESL solution application rpogram Interface (API) based on JSON data stream?

It is based on JSON data stream. Our eRetail 3.0 electronic shelf label system (eRetail 3.0) can be simply divided into three parts: DataSync / API、eRetail 3.0 and hardware devices. Among them, API is Restful style web API, which is responsible for providing interface for customer system to actively push commodity data; Data sync is a background service that actively grabs data from the customer system (such as database, WebAPI, Excel, etc.); SDK is responsible for managing commodity data, hardware equipment information, scheduling price change tasks etc. The hardware includes wireless communication base station, tag and related network equipment.Due to the actual project situation, it does not fully comply with the REST API specification.Here are some technical documents for you , please click the linkhttps://www.eslmfg.com/comm02/Specification.htm

Is there a warranty of digital price tags ?

Unless otherwise agreed in a written contract, all Sertag products are warranted against defects in materials and workmanship for one years after purchase.For product damage caused by human factors, we only charge material fees.Therefore, it is recommended that you use our products in accordance with our operating instructions. 

What is the coverage area of ​​the communication base station?

The base station provides a connection between the Electronic Shelf Label server and the Electronic Shelf labels so you can easily update them whenever you want.Sertag base station can load 2,500 Electronic Shelf Labels per station and has a 25-meter indoor radius (100 meters open-field). 

What is the battery life of retail electronic shelf labels ?

Sertag electronic shelf labels are based on e-paper /e-ink technology. Sertag's electronic shelf labels feature high contrast and low power consumption. So if refreshed once a day, the battery life is 3-5 years.Sertag retail digital price tags can greatly improve work efficiency and reduce errors. It is the development trend of future supermarkets.Here are Sertag retail electronic shelf labels products ,please click the link https://www.eslmfg.com/products2092384/Retail-Electronic-Shelf-labels-Solution.htm