Dot smart watch: a dedicated design for the blind and visually impaired users Rwanda Sugar Arrangement

Many smartphones now include auxiliary functions designed for blind and visually impaired users, but smart watches are relatively lagging behind in this regard. At least so far, there are no related products suitable for their use. In order to solve this problem, a Korean team recently developed the Dot smart watch. Like other smart watches, Dot can also be used with smart phonesRW EscortsMachine matching, receiving notifications via Bluetooth, and supporting Android and iOS phones.

Dot is equipped with 32-bit ARM Cortex M4F, Cortex M0 microcontroller. The display mainly consists of 24 dots and is made of 6000 series silver aluminum. The watch supports Bluetooth LE 4.2, is equipped with 24 touch sensors and a shaft-type horizontal vibration motor, and has 2 buttons. The battery is a 400 mAh lithium battery, which can last for 10 hours of use. The size of the watch is 43mmx12.5mm and the weight is 27 grams.

Dot uses the “dot rotor” technology developed by the company, which allows the dots to move up and down. There are 4 dot unit cells on the display screen, which can display time in hours and minutes, for example: 1 dot, 2 dots, 3 dots, and 4 dots, representing 12:34.

When the user receives a notification, the watch will vibrate, and then the information will be displayed in braille through dots, which can prevent others from understanding the content of the message in a public place. Since there are only 4 dots on the dial, it is estimated that it will use the touch sensor to determine which piece of information the user has “browsed”. After reading Rwandans Escort then displays the next “character”, displaying other underlying matters of the message.

The handheld display currently only supports Korean and English braille, and will soon support Japanese, Arabic, French, German, Italian, Polish, Swedish, Spanish, Portuguese, Danish, Dutch and Chinese.

Dot rotor technology can be used in Braille e-browsers, and developers are designing Dot Pad, which is expected to be released in 2019.

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