12 May 2015
The robot is powered by beagleboneblack using a 1500mAh Li Ion Battery with a differential drive mechanism.
Ananth's Blog - page 7
Posts
30 Apr 2015
For a long time I was searching for a good tutorial for BeagleBoneBlack. Since the community is little less for the BBB it was a little hard to get started. But I found a book which is very useful to get started (in my opinion). {every book is unique in its on way}.
"Exploring BeagleBone Tools and Techniques for Building with Embedded Linux" by Derek Molloy.
Here is link to his homepage where he listed almost all contents in the text. The book cover almost every basics you need to know to get started. (BBB, Electronics, Linux, Cross compilation, Git, Opencv, ...)
Most of the other books and tutorials focus on the javascript tool (node). But I didn't feel so good with it. This book mainly focus programming the BBB using c which I feel good. You will find an e-book here.
"Exploring BeagleBone Tools and Techniques for Building with Embedded Linux" by Derek Molloy.
Here is link to his homepage where he listed almost all contents in the text. The book cover almost every basics you need to know to get started. (BBB, Electronics, Linux, Cross compilation, Git, Opencv, ...)
Most of the other books and tutorials focus on the javascript tool (node). But I didn't feel so good with it. This book mainly focus programming the BBB using c which I feel good. You will find an e-book here.
30 Apr 2015
Here is a sample code to read and show an image after converting it into grey scale.
Program reads a picture file called boy.jpg in the current folder and displays it. After 1 second it will change to grey scale.
Use this command to compile the program.
g++ first.cpp `pkg-config --cflags opencv` `pkg-config --libs opencv`
where first.cpp is the file name.
Program reads a picture file called boy.jpg in the current folder and displays it. After 1 second it will change to grey scale.
Use this command to compile the program.
g++ first.cpp `pkg-config --cflags opencv` `pkg-config --libs opencv`
where first.cpp is the file name.
18 Apr 2015
Finally start working properly. Need a better voltage regulator and a better battery pack! Voltage spikes when BeagleBoneBlack starts. After a while the BBB will shutdown due to voltage fluctuations… :-( WiFi module in BBB is drawing so much current.
01 Mar 2015
Ever wanted to print text in colours? You can do it with ANSI escape characters. You can use ANSI codes in any programming language as long as the terminal supports it.
echo -e "\e[31mRed"
Red
echo -e "\e[32mGreen"
Green
Replace the number to get different colors. You can make text bold, italics, underline etc. Following is a short table describing several codes.
39 Default
30 Black
31 Red
32 Green
33 Yellow
34 Blue
35 Magenta
36 Cyan
37 Light gray
97 White
For a complete reference, link. (The page has a complete list of ANSI codes)
echo -e "\e[31mRed"
Red
echo -e "\e[32mGreen"
Green
Replace the number to get different colors. You can make text bold, italics, underline etc. Following is a short table describing several codes.
39 Default
30 Black
31 Red
32 Green
33 Yellow
34 Blue
35 Magenta
36 Cyan
37 Light gray
97 White
For a complete reference, link. (The page has a complete list of ANSI codes)