Posts tagged Razor

Razor E300 — The Next Step


Razor E300 — The Next Step
Laptop Battery

Image by nebarnix
Data point clouds, smoothed plots, and most importantly — SOC estimation!

Sensors were recalibrated and the wheel wobble was very painfully removed by de-centering the wheel sprocket. Go figure. 1.58 AH expended on this drive.

This telemetry was transmitted wirelessly from my E300 Razor Scooter and recorded by a laptop in my backpack. The end goal? To create a tiny little velcro box to attach to the handlebars to provide a ‘gas gauge’. Because when you have to kick-scoot back home, its no fun!

All I need are more MSP430 chips which are in the mail.

Red dots and Blue Lines are battery current
Red lines and Blue dots are battery voltage
Pale thick blue line is amp-hour consumption. At 15 Amps average rate, the pack offers ~5AH of capacity.

More info at

XMI X-mini II Speaker: Woo-Boost
Laptop Battery

Image by amchu
This is my most recent purchase and it’s absolutely fantastic. The XMI X-mini II speaker system is one of the best mini speakers I’ve ever heard especially for the sub £15 price tag.

If you normally use laptop speakers and you’re looking for something with a little more kick then one of these should do the trick. It’s small enough to take with you, the rechargeable battery life lasts for hours on end and it’s incredibly loud. No more ‘tinny’ sounds for me when I’m on the go.

Best gadget buy of 2010 so far I think.

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Razor Sharp green lasers!


Razor Sharp green lasers!

The variety of laser pointers available in the market is quite wide but one category that offers the best in terms of features and technical specification is green lasers. This type of lasers emits green rays that can reach and target long distance objects. In this range only one can find number of different green lasers that will definitely satisfy you with their performance, design and durability. The open-back 532nm is one of the laser pointers that will impress you with its performance and functioning.

It is an open back laser pointer that offers green light rays. The good thing about these green lasers is that they are of multiple uses and this one is also no exception as it can be used in clubs, discotheques, home, hotels and parties. The green light that this laser pointer emits gives a very attractive look to the whole environment and creates a very soothing ambience. The material used for this laser pointer is alloy of aluminum which makes it very durable for long term use.

The operating voltage for this pointer is 3V and requires 2 batteries of AAA size. Another advantage with these green lasers is that they can target long distance with ease because their light is far more visible than light of any other color. This laser pointer has a wave length of 532nm and offers an output of 50mW which makes its technical specifications very strong in comparison to other green lasers.

This laser pointer is widely used for different purposes in education, business circle and astronomy.

The handheld laser pointer is another excellent gadget in the category of green lasers. If someone is looking for a powerful laser with great features this laser pointer stands out among all of them. It is one of the most widely used one especially in teaching and giving lectures. It helps in understanding the subject better for the students.  The range of green lasers is never ending but one may go for the most appropriate one according to their requirement.

The green lasers are considered to be the perfect ones in making presentations and in business meetings. They make the presentation look better and let it appeal more to the audience. WF-502 is another device among green lasers that is also very appealing with respect to its features and looks. All of these green lasers are very sleek in design and light in weight. Another advantage of these green lasers is that they are portable and do not require any technical adjustment before the use.



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