Help me connect the Dot Watch to my smartphone via Bluetooth.
Usable by the visually impaired through the 4-cell Braille display

Nordic Semiconductor announced that DOT (CEO Kim Ju-yoon), a domestic smart technology company specializing in wearable devices for the visually impaired, has adopted Nordic’s award-winning Bluetooth Low Energy nRF52832 SoC (System-on-Chip).

This SoC enables users to connect the compact and cost-effective 'Dot Watch' with their Bluetooth 4.0 (or higher) iOS or Android smartphones via a dedicated app.

The Dot Watch uses an electro-dynamic cell during operation to power a refreshable Braille display that relays information transmitted from a smartphone via a low-latency nRF52832 SoC-based link.

This allows users with low vision or the visual impairment to check the time and date, answer or reject incoming calls, and check notifications such as text messages through the 4-cell (24-dot) Braille display on the front of the watch.

In addition, users can read or scroll through each notification using the two touch sensors provided on this wearable device, which is 12.5mm thick, weighs 27g, and has a diameter of 43mm, and can use various functions through two buttons and a 'Dot Crown' dial. In addition, users can set up the watch or monitor the battery status through a related smartphone app, save notification priorities, and learn through a simple Braille education module.

The ultra-low power characteristics of the Nordic SoC, featuring a 2.4GHz wireless function consuming 5.5mA peak RX/TX current and a fully automated power management system, provide a power efficiency of 58 CoreMark/mA, which plays a key role in maintaining the battery life of the Dot Watch (based on average usage) for about two weeks.

This SoC comes with Nordic’s S132 SoftDevice, a Bluetooth 4.2 certified RF software protocol stack that enables advanced Bluetooth Low Energy applications. The S132 SoftDevice performs roles such as Central, Peripheral, Broadcaster, and Observer, supports up to 20 connections, and can perform all roles simultaneously.

"Dot's CTO, Ki-Kwang Seong, stated, 'After reviewing suppliers worldwide to find the best Bluetooth Low Energy solution suitable for our flagship product, we decided to use the nRF52832 SoC, which is the most suitable for energy consumption, price, and size—key components that optimize the user experience of the Dot Watch.'"

He also said, "Nordic's SDK (Software Development Kit) and SoftDevice have been of great help in continuously developing and improving Braille smartwatches."