USB irDA adapters for modern operating systems

The irDA protocol though ancient is still used for some applications such as Medical, in the Energy Sector – for power meter communications and also military applications.

The challenge is not that there are not USB irDA adapters available. It is rather the lack of software support for newer modern operating systems.

This gap is filled by a company called Hardware Group Ltd, which offers a inexpensive USB irDA adapter module, compatible and usable on modern operating systems . It is currently compatible with Linux, Mac OS X and Windows 7, Windows 8 and Windows 10.

The unit is a possible replacement for the following USB irDA adapters that are used for Medical Applications:

  • ZOLL AED plus IrDA adapter
  • Actisys ACT-IR2002UL
  • ACT-IR220L+
  • IR750: USB to IrDA adapter

More information about the module capabilities can be found by visiting this link:

Meet Cloudy – Android based Thermal Receipt Printing System for WordPress

Cloudy is Android based thermal receipt printing system, designed for Woo Instant Notifications Plugin for WooCommerce. It features Automatic WooCommerce order printing, wireless (WiFi) and 3G/4G cellular network connection to the Internet Router, easy installation and minimal configuration.

Cloudy automatically checks for new orders placed via your WordPress / WooCommerce online store, if a new order is received, the order details will be automatically sent to Cloudy and printed on a receipt for further processing. The Thermal Printing System, together with the Woo Instant Notifications Plugin is very useful for order management and processing in restaurants, bars and cafes. The online order gets printed automatically, allowing the personnel to process it immediately and prepare it for the customer for delivery or local pickup. In terms of configuration, Cloudy just need to be connected to the internet via WiFi, then its ready for printing, thanks to the built-in unique Cloud based email address that comes with each device.

The printing system will be available for purchase by the end of March 2022 via Hardware Group Ltd. online store

Woo Instant Notifications PRO 2.7 is released

Woo Instant Notifications is a Plugin for WooCommerce that allows you to automatically print orders. We offer free version, available from with most of the features available and a PRO version with advanced features.

You can learn more about how the automatic printing solution works by visiting the Blog post below:

We regularly work to improve Woo Instant Notifications in order to provide the best solution for automatic printing WooCommerce Order Receipts for Thermal Printers

New in version 2.7

  • Support for Tyche software Delivery Date
  • Support for Coderockz Delivery Date Time Plugin
  • Fix order metadata from any external plugin for woocommerce 
  • Bugfixes


If you are already a member you can download the latest version of Woo Instant Notifications PRO from the Link below:

You can become a member by visting the link below:

Woo Instant Notifications User’s Manual

In the last six months our team was busy with the development and the improvement of Woo Instant Notifications. Mainly fixing bugs and adding new features. But it is time to publish some documentation about the plugin in addition to the video tutorials.

We have released v.1.0 of Woo Instant Notifications Manual, a very useful handbook for site admins. You will learn how to create, edit and save notification templates, as well as finding useful information about the plugin features, shortcodes and Frequently Asked Questions from the Community.

You can Download the Manual from the link below:

Ji4ka Prepaid Access Cards

We know that not all co-workers want to spent 100% of their working days at the Office / Coworking space or you are just visiting Plovdiv and you need a Coworking Desk.We are now providing prepaid access at Ji4ka Coworking.

Ji4ka Prepaid will:

  • Give you the flexibility to access the office whenever you need.
  • Give you personal prepaid access card for 24/7 access
  • Save you money, as you don’t need to pay each month!

Ji4ka Prepaid packages:

Woo Instant Notifications PRO v2.1 is released

Yesterday 29.06.2020 we have released version 2.1 of Woo Instant Notifications PRO. The new version of the plugin includes new bugfixes and useful features to ease your receipt printing process. Version 2.1 of Woo Instant Notifications features are described below.

Shortcodes for Websolution Delivery Date&Time

  • {wc_delivery_date} shortcode will add the selected delivery date to the receipt
  • {wc_delivery_time} shortcode will add the selected delivery time to the receipt
  • {wc_delivery_type} shortcode for used delivery type (local or other)

v.2.1 of Woo Instant Notifications PRO can be downloaded from the membership area at

Woo Instant Notifications PRO 1.7 is released

Today we have released version 1.7 of Woo Instant Notifications PRO.

New features:

  • Shortcodes for WooCommerce Checkout Manager from QuadLayers
    • Add custom billing fields on the receipt
    • Add custom Shipping fields on the receipt
    • Add additional custom fields on the printed receipt
  • Shortcodes for Checkout Field Editor PRO
    • Add custom checkout fields on the printed receipts
  • Shortcode for standard Date/Time format for the order

Woo Instant Notifications Pro 1.7 can be downloaded from the members section at

Digital (Contact-less) Menu’s for Restaurants, Bars and Cafe’s

Following the COVID-19 Outbreak most of the offline businesses were affected by the crisis, but the Restaurants, Bar’s Cafe’s etc. were hit really hard with full closure and in practice the businesses halted.

The above lead to many of the above businesses to invest in their online presence. They started making online stores, and those who already have online presence invested in redesign of their websites and adding additional features for order management and processing.

Now that those businesses started to recover from the crisis (though there are still health measures needed to be taken) the restaurants , cafe’s and Bars began the restart their businesses.

With their online presence already set and their menu’s also available online, many of them discovered that there is way for their clients to access their online menu’s in a contact-less manner by using the NFC technology. Practically to make your online menu available via NFC enabled smartphone, you need a NFC sticker on which you record a URL (the website address of the Restaurant for example) and once the client scans the NFC sticker with his smartphone , he is automatically redirected to the Restaurant web page, where he can choose and purchase without touching any physical menu, thus reducing the risk of contracting COVID-19.

Before the events, following the COVID-19 crisis the contact-less NFC Technology was not that widely used, but nowadays it seems that it will be used worldwide to help the fight against the disease.

If you are a restaurant owner and you want to add a contact-less shortcut to your digital menu on your website you will need the following:

  • NFC TAG / Sticker on each Table (The Client Scans the Sticker with his smartphone and he is redirected to your online restaurant Menu)
  • A Website, where your online menu is accessible

What we do?

  • We at Ji4ka are offering NFC Stickers with or without Branding / Custom Logo, which will help your customers to safely access your online digital menu
  • We will record the NFC Stickers with a link to your Digital Restaurant Menu for free!
  • If you dont have a website with a digital menu we will create one for you! Contact Us!

Below are the type of stickers (All suitable for contact-less restaurant menus) that we offer:

[product_category category=”nfc stickers”]

Ji4ka installs new LoRaWAN Gateway in Plovdiv

Ji4ka Coworking & MakerSpace support The Things Network community in Plovdiv with a new LoRaWAN Gateway, installed in Plovdiv’s city center. The Gateway is installed @ Ji4ka Coworking space near the old town. The Gateway is equipped with 9dBi gain external antenna, mounted on a pole 3.5 meters above the ground.

At the site we have client nodes based on Arduino and raspberry pi, available for Ji4ka’s members and for everyone that want to experiment and learn about LoRA and IoT.