Antre du Tryphon

Maximum frequency an Arduino can generate

September 7, 2015 · claude Arduino

What is the maximum frequency an Arduino can generate? Typically, I obtained a frequency of less than 100 kHz using the Arduino function calls. The results were lower than I expected. I also observed that I had a frequency higher by 25 kHz using a...

TRENDnet TK-207K KVM Mounting Bracket

August 28, 2015 · claude 3D Printing

This is a mounting bracket for the TRENDnet TK-207K KVM. It is a 2-Port USB KVM Switch. The device labeling is upside down. I preferred to have the heavy cables downward. This model is also published on Thingiverse.

How about a Raspberry PI 2 as a firewall?

August 26, 2015 · claude Unix Raspberry PI Wheezy +1

A Raspberry PI 2 performs as expected exceptionally well as a firewall. The download throughput achieved was 33 Mbits/sec under the same test conditions as the previous test (see Can A Raspberry PI Be Used As A Firewall? for more details). The CPU...

Can a Raspberry PI be used as a firewall?

August 25, 2015 · claude Raspberry PI Wheezy Networking

Can a Raspberry PI be used as a firewall? This question comes back often. Well, I have tested it. The test conditions are:

Cable Hanger for Doors

August 9, 2015 · claude 3D Printing

This kit of 3D objects makes a cable hanger to be hooked to a door without screws. It is suitable for 6 feet cables assuming that the door is 80 inches high. Each cable holder section has 18 teeth or 17 grooves. Each groove is 3 cm deep. One cable...

STM32 Minimum System Development Board

July 20, 2015 · claude Arduino STM32

This post describes how to upload code to a STM32 Minimum System Development Board that can be bought from Ali Express or eBay for around $4.00 US. You will be able to compile and upload a led blinking program to the board at the end of this guide....

Change the Ubuntu login screen background?

July 13, 2015 · claude Ubuntu Ubuntu 12.04 Ubuntu 14.04 +1

Changing the login screen background is easy but not obvious. The image file you want to use as the login screen background must have a read access for everyone. Open the image with the Image viewer installed by default. Select the option Set as...

Make an Apache2 SSL server more secure

June 3, 2015 · claude Unix Ubuntu Linux +2

These easy steps will improve significantly the security of your Apache2 SSL server. Edit your /etc/apache2/mods-enabled/ssl.conf file and replace the SSLProtocol, SSLCipherSuite and SSLHonorCipherOrder parameters with the following values....

Raspberry Pi Model B+ Drilling And Mounting Plates

April 22, 2015 · claude 3D Printing

This thing contains a mounting plate and a drilling guide for the “Raspberry Pi Model B+”. The plates are not symmetrical. The notch shall be on the power jack and ethernet cable side. The base plate is 2 mm thick. M2 5 mm or 1/4″ 4-40 screws are...

Raspberry Pi Model B Drilling And Mounting Plates

April 21, 2015 · claude 3D Printing

This thing contains a mounting plate and a drilling guide for the “Raspberry Pi Model B”. The plates are not symmetrical. The notch shall be on the power jack and ethernet cable side. The base plate is 2 mm thick. M2 5 mm or 1/4″ 4-40 screws are...

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