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David Stein

IT Specialist, hacker and electronic enthusiast

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    • FireSmartHeating – intelligent control board for electric floor heating
    • BarcodeBarrier – parking system using barcodes
    • SmartKitchen – TCP/IP kitchen signal device
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Windows AD commands + server cheat sheet

21/12/2023 / IT, Windows

Find inactive users in AD

Windows AD commands + server cheat sheet Read More »

Delete all Microsoft.AAD.BrokerPluginWindows – O365

21/09/2023 / IT, Tutorials, Windows

Hello, sometimes if you migrate the backup of the PC to the new PC you can get trouble with the activation of the O365. Or if you need to change the main user of the PC. The problem could be in the BrokerPlugin which keeps the old user as an authorized user. There is a

Delete all Microsoft.AAD.BrokerPluginWindows – O365 Read More »

Add driver to offline Windows installation from recovery

16/09/2023 / IT, Tutorials, Windows

Sometimes if you recover the Windows installation from the backup, you can face a bad situation where the system tries to start but after a while, you are smashed to face by BSOD “boot device is not accessible”. It is because the driver for the storage is not part of the recovered image and when

Add driver to offline Windows installation from recovery Read More »

HomeAssistant – Wolf CWL-2 Modbus communication

26/01/2023 / Electronic, IT, Programming, Tutorials

A quick tutorial on connecting your HomeAssistant to read and write data to Wolf CWL-2 (and other Wolf devices that use the Modbus). All data in this tutorial are get from live installation so you need to edit it to match your setup(unit id/network IP etc). Requirements Connection You are able to connect multiple devices

HomeAssistant – Wolf CWL-2 Modbus communication Read More »

Mikrotik – failover script with link quality check

26/01/2023 / IT, Networking, Programming

Mikrotik – failover script with link quality check Read More »

Install Kali Linux desktop environment to generic Debian

16/12/2022 / IT, Linux, Tutorials

If you like the kali Linux environment but you want to use the OS for everyday use, it is recommended to do not to use Kali Linux itself. Kali Linux has its own purpose and does amazing in that way. But for everyday use is better to use some standard distribution in my case I

Install Kali Linux desktop environment to generic Debian Read More »

Project SmartKitchen – TCP/IP kitchen signal dev.

09/12/2022 / IoT, My projects, Programming, SmartKitchen

A few years ago I get the goal to come up with a solution to one unusual situation. One kitchen and two different restaurants, both of them use different POS systems so they are not compatible. The one kitchen prepares meals for both restaurants. There is a need to somehow let to know the waiters

Project SmartKitchen – TCP/IP kitchen signal dev. Read More »

Riden RD6018 PSU – review and basic settings

03/12/2022 / Electronic, Reviews

I tested the Riden RD6018 with a Wifi communication card. The unit is really handy with easy to setup interface. It also offers nine memory slots to save your values. I use saved values for example to test the LED (current protection) or to find the shorts on the PCB where I can set the

Riden RD6018 PSU – review and basic settings Read More »

Repair – DL24 over current repair

01/12/2022 / Electronic, IT, Reparirs

All right I do not pay attention and switched ten amperes and not the single amperes, as the result the MOSFET was fried as charcoal. So I disassemble the fan, check the used MOSFET, and replace it. Here is a really simple video on how you can do it. The used MOSFET in my case

Repair – DL24 over current repair Read More »

Mikrotik – DHCP Options – TFTP server

01/12/2022 / IT, Networking, Tutorials

Sometimes you need to push the TFTP server value as part of the DHCP process, for example, this is used in most VoIP systems. The VoIP phone use the TFTP server to download configuration files. Here I will show you how to set this value in the Mikrotik DHCP server. 1. Boring stuff The boring

Mikrotik – DHCP Options – TFTP server Read More »

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My bio

David “fires” Stein

info@davidstein.cz

00 420 774 301 388

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