Ubuntu based problem when copying heavy files and folders

Ubuntu, Linux Mint (which is based on Ubuntu) and other Ubuntu based distro out there all suffered from a problem while copying heavy files and folders using GUI. When I tried transferring my data from a External HDD to another External HDD using GUI (drag and drop, or copy and paste), it was showing high… Continue reading Ubuntu based problem when copying heavy files and folders


Using RealVNC on Raspian

To practice image processing on Raspberry using its own camera, I need to be able to output image some where I can see, like on a HDTV screen via HDMI. But it has 2 setbacks: By design, SSH is secured and can not direct its output to other terminals. We can find a way around… Continue reading Using RealVNC on Raspian

Fixed IP Address & Fixed SSID for Wifi access on Raspbian Jessie

The latest version of Raspbian, Jessie, change the way Wifi config works. Old tutorial on the Internet doesn't work anymore. Follow these steps to configure Wifi for your Raspberry headlessly (no display). After copy Raspbian Jessie image into your SD card, open terminal and change directory into SD card. 1. To config Wifi network: Edit… Continue reading Fixed IP Address & Fixed SSID for Wifi access on Raspbian Jessie

DIY Soldering Station [part 5]

My soldering station is working nicely now for a while. Below is my demo video of it. Not all functions demonstrated in this video though. https://www.youtube.com/watch?v=TmCQ9N5UV8s As always, all codes, schematics and PCBs is updated on my GitHub project page: http://www.github.com/wonbinbk/SSS 1. Heating control In this version of code, heat is controlled using only Proportional… Continue reading DIY Soldering Station [part 5]

My STM32F4 love story

Recently I bought a STM32F4-discovery. It is a development board for 32-bit ARM based micro-controller. There are a STM32F407VG MCU, two MEMS sensor (1 accelerometer and 1 microphone). It also comes with a ST-LINK V2 so we got everything we need on this small board to flash the chip and play with it. http://blog.tkjelectronics.dk/wp-content/uploads/STM32F4-DISCOVERY_Board.jpg This is… Continue reading My STM32F4 love story