Customizable Linear Carriage Generator

A “Customizable Linear Carriage Generator” is now available. More details at Customizable Linear Carriage Generator .

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Fix “The Update Information Is Outdated”

Sometimes, the message “The Update Information Is Outdated” is displayed when you click on a red warning red icon in the status bar. It happened to me last week. This

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Parametric utility box

A “Parametric Utility Box” is now available. More details at Parametric utility box .

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Maximum Frequency of a ESP8266 – Revisited

The ESP8266 can yield a 163 kHZ wave using the Arduino IDE and writing the code in C.  The code used is: int pin = 5; void setup() { pinMode(pin, OUTPUT);

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Maximum Frequency an ESP8266 can yield

An ESP8266 running NodeMCU can yield maximum frequency of 1.44 kHz with a duty cycle of 61%.  The wave form is given below.  The code used to perform this test is: pin =

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Interrupt NodeMCU init.lua

It can be sometimes challenging to regain control of the NodeMCU running on a ESP8266 when init.lua has a tight loop in it.  To do so,  first, download esptool.py from GitHub.

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ESP8266 Resources Page

I have written a page that contains many useful links about the ESP8266 platform.  You can display this page either using the top menu option “ESP8266 Resources” or by cliking

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ESP8266 – Remarkable free book

A remarkable book about the ESP8266 is freely available.  It can be downloaded from Kolban’s book on the ESP8266.  It contains more than 300 pages of information.  This book is a

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EGit does not shows project decorations

Decorations are not displayed when some commits are not pushed EGit within the Eclipse IDE. These are the UP and DOWN arrows shown to the right of the project name

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Hard reset a Cree Connected light bulb

I acquired a few days ago a Wink Hub along with a few Cree Connected light bulbs. I couldn’t pair them. Out of 5 bulbs, I was able to pair

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Maximum frequency an Arduino can generate

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

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TRENDnet TK-207K KVM Mounting Bracket

A “TRENDnet TK-207K KVM Mounting Bracket” is now available. More details at TRENDnet TK-207K KVM Mounting Bracket.

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How about a Raspberry PI 2 as a firewall?

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

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Can a Raspberry PI be used as a firewall?

Can a Raspberry PI be used as a firewall? This question comes back often. Well, I have tested it. The test conditions are: a Raspberry PI Model B (256MB of

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Cable Hanger for Doors

A “Cable Hanger for Doors” is now available. More details at Cable Hanger for Doors.

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STM32 Minimum System Development Board

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

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Change the Ubuntu login screen background?

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

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Make an Apache2 SSL server more secure

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. SSLCipherSuite

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Raspberry Pi Model B+ Drilling And Mounting Plates

“Raspberry Pi Model B+ Drilling And Mounting Plates” are now available. More details at Raspberry Pi Model B+ Drilling And Mounting Plates.

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Raspberry Pi Model B Drilling And Mounting Plates

“Raspberry Pi Model B Drilling And Mounting Plates” are now available. More details at Raspberry Pi Model B Drilling And Mounting Plates.

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