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Eagle – How to place pins in a circle

Eagle – How to place pins in a circle

luca May 21, 2016 0

I’m working with Eagle to prepare a PCB for a Nixie clock. I wasn’t able to find a library for the Nixie I chose so I had to create it from scratch. Nixie’s datasheet has the

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Windows, how to clean up unused COM ports

Windows, how to clean up unused COM ports

luca April 27, 2016 0

It certainly happened to you that, when you connect a new USB device to your Windows PC, the operating system assigns the device a COM port with a high number because of the previous

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Raspberry, how to update node.js

Raspberry, how to update node.js

luca February 20, 2016 0

If you read some of my latest projects (for example Home automation with Telegram BOT) you probably noticed that I really like the node.js javascript runtime. The framework is frequently updated (the moment I’m writing the latest version

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Arduino clones with CH340G IC

Arduino clones with CH340G IC

luca October 20, 2015 0

Recently, I received some Arduino clones, mostly from chinese webstores, that use the CH340G chip as USB-to-serial converter instead of the more common (and I suppose more expensive) FTDI chip: Windows natively does not support that

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Windows: unable to apply GPOs, event id 1065

Windows: unable to apply GPOs, event id 1065

luca August 31, 2015 0

Today I noticed that some Windows servers were not applying the correct GPOs (Group Policy Objects). Troubleshooting the problem, I found the event id 1065 in the Windows eventlog: A GPO was indeed configured with a WMI

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VMware – Unable to remove a datastore

VMware – Unable to remove a datastore

luca July 15, 2015 0

After having emptied a datastore on my vSphere cluster (using the Storage vMotion feature to hot move the virtual machines) I tried to delete it but I got the following error message: The resource <datastore-id> is

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VMware and CDP

VMware and CDP

luca June 1, 2015 0

The Cisco Discovery Protocol (CDP) is a Cisco proprietary protocol to share information between directly connected network devices. It’s very useful, especially in a complex network, to discover its topology, for example which switch port a

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vCenter Converter: How to manually configure the Helper VM

vCenter Converter: How to manually configure the Helper VM

luca April 28, 2015 0

Today I was virtualizing a Linux server using the latest version of the VMware’s vCenter Converter Standalone and I had a problem: the Helper VM, that is the virtual machine created by the Converter to be the target

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IIS 7.5 – Revert custom error pages to inherited ones

IIS 7.5 – Revert custom error pages to inherited ones

luca April 24, 2015 0

On IIS you can define custom error pages for the different HTTP error codes (for example the code 404 stands for “page not found”). Today I needed to revert the custom error pages to

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VMware, how to kill a stuck VM

VMware, how to kill a stuck VM

luca March 28, 2015 0

Today I needed to shut down a virtual machine that was unresponsive. I tried to issue the Power off command from the vSphere client but after some minutes it was still in progress… The solution was

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