Best explanation I’ve seen of what “extern” means in C
http://stackoverflow.com/questions/1433204/how-do-i-use-extern-to-share-variables-between-source-files-in-c
Author Archives: cloudnthings
How to rotate your screen in Ubuntu/Linux
I had a dedicated key for auto rotate on/off on my laptop which worked in Windows but in not Ubuntu. I’m glad because I got to learn a new command called xrandr. I remember this by thinking of x random r. It is really neat and I recommend you running these commands and experiment. These… Read More »
Connecting to your Bitcoin node from another computer
If you are running a Bitcoin node on one of your servers that has an internal IP of 192.168.1.x then you’ll know you can hit the API using localhost or 127.0.0.1 But what if you want to make a JSON-RPC call from another computer from with your local network? If it is not configured, you’ll… Read More »
How to mount USB drive to Raspberry Pi
There are just a few simple steps to mount a USB drive to your Raspberry Pi. Step 1: The first command you want to run (with your usb plugged in) is: >> ls -l /dev/disk/by-uuid This will output something like: the ../../sda1 is the name of the usb that I have plugged in. Step 2:… Read More »
Direct firmware load for rtlwifi/rtl8188eufw.bin failed with error -2
If you have come across this strange error you are probably trying to get a Realtek wifi dongle working on a Raspberry Pi. The trick is that if you plug in the wifi dongle and you don’t see the blue LED flashing, then get ready to start debugging. Before you try pumping up the current… Read More »
Hatching Twitter: Nick Bolten
Engaging and gripping read from beginning to end. Around 500 pages of entertainment for anyone who wants to know all about Twitter.
How to calculate CRC32 by hand?
Introduction A 32 bit Cyclical Redundancy Check is a means of error detection in data transmission. There are plenty of online calculators that will help you automatically calculate the CRC32 of a given value. What I wanted to do was to understand how it is calculated. So what better way than to try and replicate a… Read More »
My favourite error: exec_tty error: Cannot run program: Unknown reason
Well, almost my favourite, but it is pretty cryptic to say the least. All I was trying to do was run the default Hello World C program after a fresh install of Eclipse. (4.4 in this case) on Ubuntu 14.04 After a bit of searching, this post nailed it. http://stackoverflow.com/questions/11390163/running-ubuntu-eclipse-c-helloworld I was trying to execute… Read More »
Read the right Mulesoft docs in the right Mulesoft place.
I had been battling with cryptic error from Mule Anypoint Studio for several days banging my head against the wall.I tried uninstalling and reinstalling Anypoint Studio and also tried Eclipse with the Anypoint Studio plugin. All to no avail. In the end, the solution was simple. I had installed the wrong version of the CRC32… Read More »
Getting Dell PU705 Bluetooth Travel Mouse working in Ubuntu
So the mouse works out of the box which is great but I wanted to customize some of the button. This device has 4 extra buttons. The wheel not only scrolls up and down, but you can click it left and click it right. There are also 2 extra buttons near the thumb. Out of… Read More »