M2 Health Bracelet - controller board - Nordic N51822-0627

The nRF51 Series

SoCs SOCS (suppressor of cytokine signaling proteins) refers to a family of genes involved in inhibiting the JAK-STAT signaling pathway. Genes * CISH * SOCS1 * SOCS2 * SOCS3 * SOCS4 * SOCS5 * SOCS6 * SOCS7 Suppressor of cytokine signaling 7 is a pro ...

are a family of ultra low-power wireless SoCs from

Nordic Semiconductor Nordic Semiconductor (formerly Nordic VLSI) is a fabless semiconductor company headquartered in Trondheim, Norway, and focused on low-power wireless communications devices. Overview The company specializes in ultra-low-power performance wireles ...

. The nRF51 series are designed to enable a wide range of wireless

embedded system An embedded system is a computer system—a combination of a computer processor, computer memory, and input/output peripheral devices—that has a dedicated function within a larger mechanical or electronic system. It is ''embedded'' ...

s and consumer electronic products in many different fields of wireless connectivity including wearable devices, computer peripherals, mobile phone accessories, security devices and sensor applications. The nRF51 series devices support a range of ultra low-power wireless communication protocols including: Bluetooth low energy,

ANT Ants are eusocial insects of the family Formicidae and, along with the related wasps and bees, belong to the order Hymenoptera. Ants evolved from vespoid wasp ancestors in the Cretaceous period. More than 13,800 of an estimated total of ...

ANT+ Ants are eusocial insects of the family Formicidae and, along with the related wasps and bees, belong to the order Hymenoptera. Ants evolved from vespoid wasp ancestors in the Cretaceous period. More than 13,800 of an estimated total of 22,0 ...

and 2.4 GHz proprietary protocols.

Radio architecture

The nRF51 series devices employ Nordic Semiconductor's 3rd generation 2.4 GHz radio architecture. This radio uses narrow-band GFSK modulation and is frequency adaptable across the 2.4 GHz

ISM band The ISM radio bands are portions of the radio spectrum reserved internationally for industrial, scientific and medical (ISM) purposes, excluding applications in telecommunications. Examples of applications for the use of radio frequency (RF) ener ...

Key features

* ARM Cortex-M0 microcontroller * Programmable

GPIO A general-purpose input/output (GPIO) is an uncommitted digital signal pin on an integrated circuit or electronic circuit (e.g. MCUs/ MPUs ) board which may be used as an input or output, or both, and is controllable by software. GPIOs have no ...

* Bespoke power management system * Programmable Peripheral Interconnect system * Radio packet DMA (

Direct Memory Access Direct memory access (DMA) is a feature of computer systems and allows certain hardware subsystems to access main system memory independently of the central processing unit (CPU). Without DMA, when the CPU is using programmed input/output, it is ...

) * 4dBm output power * Independent software architecture Microtechnology {{commonscat