gps

OpenAVL - an AVL free project (II) - using an open source compiler too!

allankliu — Wed, 17 Sep 2008 03:40:17 +0200

After merging the code from different projects, some of which use open source compilers, I can build my own project with GCC for AVR. The first project consumes 12KB ROM and 1K RAM. I believe the RAM size can be reduced after some optimization. However AVR offers big enough memory size than my expectation. Now I am adding the OTA (Over-the-Air) command parser to the project.

OpenAVL - an AVL Open Source project (I)

allankliu — Mon, 15 Sep 2008 03:23:48 +0200

OpenAVL is an AVL (Automatic Vehicle Location)open source project.The OpenAVL is one of my on-going open source projects. This project is written in ANSI C. The prototype board is made up of a low cost GSM M2M module (MC39i) from Siemens/Cinterion, a GPS OEM module from Leadtek and an AVR microcontroller (ATmega128L) from Atmel. It will be ported to Emcelettronica's IperSMS board, which has a PIC18 and a Telit M2M module. I will share my development experiences in these blogs.

GPS systems (PDAs software and applications)

allankliu — Wed, 10 Sep 2008 04:26:16 +0200

GPS tracking systems are well known GPS based applications in daily life. Some applications can run independently, such as navigation, geo-tagging and passive track logger. The other applications have to connect to the complementary web servers as the backend sources of map tiles, local search services, landmarks sharing and routes planning.

GPS receiver design

allankliu — Thu, 04 Sep 2008 11:44:55 +0200

Today GPS is involved in many location based services, more and more mobile equipment are integrated GPS feature inside. This article will cover GPS receiver module design based upon existing chip-set, component and firmware/software sources. I will prepare extra article for GPS system design, which cover mobile platforms, system programming, back-end web integration and etc. I will try my best to delivery mentioned content on open source projects.

Lost or just seeing the sights ...?

froa0112 — Fri, 11 Jul 2008 00:47:00 +0200

New comers in GPS technologies

froa0112 — Fri, 23 May 2008 23:24:23 +0200

For those of you lucky enough to have attended CeBIT2008 this past March in Hanover, you might have seen another series of GPS devices debut: the next two additions to the GPS lineup for Navigon Max series: 2100 and 2120.

ETUBE Electronics + YouTube

Emanuele — Sun, 21 Oct 2007 17:28:03 +0200

ETUBE Electronics + YouTube