Once you've entered your trip, you can review the itinerary on the map, as text-based directions, or get a running demo. If at any time you want to avoid a part of your route, you can tap the "Find Alternative" icon to get new directions.
The system also supports automatic route recalculations and multidestination trips. Sadly, you can't search for restaurants by cuisine type.
If you have more specialized interests, the catalog also features entries for beaches, campgrounds, cultural centers, and more. There are various ways to plot to POI: you can search for them along your route, near your destination, or near home. You can view maps in 2D or 3D mode.
A status bar at the bottom of the screen displays useful information, such as the distance and direction of your next turn, remaining distance, and estimated time of arrival. If you crave more or less information, you can customize what is shown on the status bar under the Preferences menu.
Tapping the left half of the status bar where your next instruction is displayed will repeat the voice directions and give you access to the volume control.
There are also two icons in the upper-right and upper-left corners that let you zoom in and out of maps. In addition to the visual cues, the TomTom One offers voice-guided turn-by-turn directions, but unfortunately, unlike the One S, you don't get text-to-speech functionality.
This means you'll hear more generic instructions, such as "Turn left in feet" instead of specific street names. Even though the One is a basic system, we still would have liked to have seen the inclusion of text-to-speech functionality.
There are some additional goodies. For example, there's a "Where am I? In addition, you can find the nearest police station, hospital, car repair shop, and other services with just a tap of the screen.
It's very handy and gives you a bit of peace of mind, especially if you are in unfamiliar territory. From a cold start, it took about two minutes for the GPS to get a fix on our location under partly cloudy skies, while subsequent starts were much faster.
As we drove around San Francisco, the unit did a good job of tracking our location and keeping up with our movement. It was also able to keep a GPS fix as we drove through the Financial District, where tall buildings often block a clear view of the sky.
We entered our start and end points on the first journey, and the One returned with a route in less than a minute. It's not been quite that simple; for starters, the device doesn't have a keyboard or hard drive and nor can it be made to boot from a USB drive. Original work to reign in the GO centered around attempts to invoke a remote shell login while USB-connected to a computer. This meant it became trivial to have the TomTom run any custom app provided it was named ttn and saved to the memory stick.
This finally permitted remote command-line sessions from a desktop computer. Even so, little could be performed except to probe the innards of the system. In an unexpected twist of events, the gpl-violations. They were successful in this and TomTom agreed to release the full source code including all additions and changes made in-house.
Additionally, TomTom showed their "appreciation" for Free Software by making a donation, described as "significant", to the infamous Chaos Computer Club - read into this what you may. The result was a breakthrough and brought forth a cornucopia of technical information.
The SatNav vendor now provides free downloads for all versions of its GO software from version 4 to the present 6. Additionally, TomTom detail the compilers and libraries they used to build the embedded OS and provide both Linux and Windows versions of the necessary toolchain that targets the ARM processor.
It is actually surprising how many open source elements are used including terminal emulators, tools to erase flash memory and tools to initialise Bluetooth, the popular MPlayer multimedia player and others and thus gpl-violations. It must be clearly pointed out that the TomTom mapping and navigation application itself remained fully proprietary; it was the GO's operating system which was the subject of the violation.
This was fine; for the wiley hackers, the actual SatNav software - despite being the primary focus for general consumers - was totally irrelevant. The goal was to master the box itself. Work continued in deciphering how the TomTom boots.
This was greatly aided by the source code now being accessible, and one year later the Chaos Computer Club - perhaps still pleased with their boost in fortunes - presented a paper on what they had achieved thus far towards this end.
Techniques discussed included reverse engineering and forcing buffer overflows, all of which provided data as to how the GO could be controlled to run any arbitrary program. Screenshots were presented showing point-and-click adventure system ScummVM playing on the handheld and showing the TomTom displaying the image being received via a USB-connected Webcam. Most importantly, the Blowfish cipher key was discovered and unveiled, finally unlocking the TomTom for custom boot loaders paving the way to replacement operating systems.
With this under their belt, the Chaos Computer Club proferred new suggestions for custom apps: the obvious MP3 player and WiFi sniffer, but more imaginatively a radar detector and a crypto-key server responding to Bluetooth requests. So then, how can you and I exploit this hard work by such dedicated netizens? The answer is found in the pages of the OpenTom project. Thank you Denis. Re TomTom One ; will it mount on the dashboard? Illegal to mount it on windshield in Calfornia.
Notify me of followup comments via e-mail. Sunday, March 18, News Feed Comments. Comments Tim says:. November 25, at pm. Jon Blurr says:. November 29, at am.
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