Book: iPhone Hacks

Posted on in Categories Book Review, OS X, UNIX last updated April 22, 2009
iPhone Hacks

The iPhone is an internet-connected multimedia smartphone. Chances are if you own an iPhone (or iPod) , you long to discover its hackability. And a new book from O’Reilly iPhone Hacks can help you do just that. This book covers over 100 tips & tools for unlocking the power of your iPhone / iPod touch. With this book you can pushing the iPhone and iPod touch beyond their limits.

Linux / UNIX minicom Serial Communication Program

Posted on in Categories Hardware, Howto, Linux, Linux Embedded devices, Tips last updated February 5, 2008

Linux comes with many serial text and gui based serial communication programs. My favorite is minicom – friendly menu driven serial communication program.

If you are addicted to DOS / Windows TELIX (a telecommunications program originally written for DOS and was released in 1986), minicom is for you under Linux / UNIX.

minicom Common features / usage

=> Setting up a remote serial console
=> Access a computer / server if the LAN is down
=> Connect to embedded Linux / BSD device via null modem cable
=> Connect to Cisco routers for configuration
=> Connect to dump device i.e. device w/o keyboard and mouse
=> Dialing directory with auto-redial
=> Support for UUCP-style lock files on serial devices
=> Separate script language interpreter
=> Capture to file
=> Multiple users with individual configurations

Let us see how to configure minicom for my Soekris net4801 Single Board Computer / embedded Linux device.
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Display real-time system information from your Linux box on a LCD with LCDproc software

Posted on in Categories Download of the day, Linux, Linux Embedded devices last updated October 4, 2007

I’m currently working on a small project. I came across cool software called LCDproc. If you have HD44780-based display you can build really cool system for just US $15.

LCDproc is a piece of software that displays real-time system information from your Linux/*BSD box on a LCD. The server supports several serial devices: Matrix Orbital, CrystalFontz, Bayrad, LB216, LCDM001, Wirz-SLI, Cwlinux(.com) and PIC-an-LCD; and some devices connected to the LPT port: HD44780, STV5730, T6963, SED1520 and SED1330. Various clients are available that display things like CPU load, system load, memory usage, uptime, and a lot more. CDproc supports Linux, FreeBSD, OpenBSD, NetBSD, Darwin and Solaris (beta support). LCDproc cycles through several screens of information. The screen order and display duration can be configured at run-time.

The CPU Utilization screen displays the system’s current CPU utilization. These values are the normal values reported by Linux.

Above is the CPU Utilization screen displays the system’s current CPU utilization. These values are the normal values reported by Linux. The percentage in the title bar is the sum of all non-idle cycles, and the bar graph at the bottom of the display reflects this percentage.

Download LCDproc software

=> Visit LCDproc Project Home Page.