SmartWatch Multiple Functions Will ON for 15 days

 The Nordicn RF 52840SoC helps the Leda C16 smartwatch jointly developed by Mianyang and Ledai to send data to the smartphone application via Bluetooth Low Energy.

SmartWatch Multiple Functions 


MoYoung Ltd., a technology developer located in Shenzhen, has selected Nordic's nRF52840 Bluetooth 5.2/Bluetooth Low Energy (BluetoothLE) advanced multi-protocol system-on-chip (SoC) as the company's Le Dai C16 smartwatch provides core processing functions and wireless connection functions.


The C16 smartwatch is a stylish wearable device that provides users with a series of activity tracking functions, including 20 exercise modes, pedometer function, calorie and exercise tracking, sedentary reminders, and social media notifications and call reminders. In addition, this smartwatch also provides a variety of health data, including sleep and 24-hour user heart rate and blood oxygen level intelligent monitoring.


The Bluetooth low energy connection assisted by NordicSoC can relay data from the C16 smartwatch to the user’s paired Bluetooth 4.0 (and higher) smartphone, and then perform various operations through supporting apps that support iOS or Android, such as self Define equipment, enter personal information, and view current and past data of all exercise modes and health functions through graphs.


The 64MHz, 32-bit Arm CortexM4 processor and Floating Point Unit (FPU) of NordicnRF52840SoC provide sensor and algorithm data processing functions for C16 smartwatches. The ArmCortexM4 processor is designed to support typical floating-point and digital signal processing calculations in high-end wireless applications. The processor combines a 2.4GHz multi-protocol radio (supports Bluetooth 5.2, ANT, Thread, Zigbee, IEEE802.15.4 and proprietary 2.4GHzRF protocol Software), and has sufficient 1MB flash memory and 256kBRAM memory allocation.


The C16 smartwatch has an IP67 waterproof rating, can reach a waterproof performance of up to 30 meters, and is powered by a 350mAh battery, which can stand by for 45 days or work continuously for 10 to 15 days. This is due to the ultra-low power consumption characteristics of NordicSoC to a certain extent. nRF52840SoC has been carefully designed to minimize power consumption through a fully automatic power management system. Compared with nRF51 series devices, power consumption can be reduced by up to 80%.


Provides comprehensive Bluetooth 5 support, including twice the wireless raw data bandwidth (2Mbps), four times the communication range, eight times the broadcast expansion performance (increase the broadcast packet payload size to 251 bytes), and a better channel coexistence algorithm.


The S140SoftDevice provided with the nRF52840SoC is a software protocol stack certified by Bluetooth 5.2 for building long-range and high-data-throughput low-power Bluetooth applications. Nordic has a unique software architecture, which clearly separates the RF protocol software and the developer's application code, thus simplifying the development process and ensuring that the SoftDevice will not be damaged when Mozang Technology develops, compiles, tests and verifies the application code.


S140SoftDevice provides concurrent central, peripheral, broadcaster and observer Bluetooth low energy roles, and supports high throughput and remote modes as well as broadcast extension functions.


"The NordicnRF52840 used in the C16 smartwatch has many of the most important hardware features, including powerful Arm CPU functions, sufficient memory capacity, and low power consumption that can extend standby time, so it can achieve extremely high resolution and very smooth low-latency touch. response."


"The key software function of nRF52840 is to separate the application code from the SoftDevice, thereby realizing pure development and greatly reducing the software error rate. This is one of the reasons we decided to use this SoC. The Nordic Software Development Kit (SDK) provides comprehensive data, Can greatly reduce development costs and overcome any development difficulties."

"As a company, Nordic provides us with excellent technical information and reference designs to promote the product development process.

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