Summary of APPSENS’S BLE WEARABLE ECG SENSOR POWERED BY NORDIC NRF52832 DETECTS ARRHYTHMIA
AppSens’ ECG247 Smart Heart Sensor is a wearable Bluetooth LE ECG monitor using Nordic nRF52832 SoC to continuously record and analyze cardiac electrical activity for detecting atrial fibrillation and other arrhythmias. The system has a disposable adhesive electrode patch and a reusable electronic sensor, supports use during activity, and runs proprietary signal-processing algorithms on the nRF52832’s 64 MHz Cortex-M4 with FPU. Its ultra-low-power design enables about 14 days of continuous monitoring from a single CR2032 coin cell.
Parts used in the ECG247 Smart Heart Sensor:
- ECG247 reusable electronic component (sensor)
- Disposable electrode-patch
- Nordic nRF52832 SoC (64 MHz ARM Cortex-M4 with FPU)
- CR2032 coin-cell battery
- Bluetooth Low Energy (BLE) radio / 2.4 GHz transceiver (integrated in nRF52832)
AppSens, a Norway-based medical technology manufacturer, designed ‘ECG247 Smart Heart Sensor‘ – a Bluetooth LE enabled wearable ECG sensor, powered by Nordic’s nRF52832 SoC, to detect irregular heartbeats. This device is a wearable electrocardiographic (ECG) heart monitor designed to detect atrial fibrillation and other major cardiac arrhythmias. Atrial fibrillation is the most commonly occurred cardiac rhythm disorder and is a common cause of stroke.
ECG247 Smart Heart Sensor has two parts – a disposable electrode-patch to fasten the sensor to the patient’s chest and a reusable electronic component for measuring the ECG signal. The patient can use this solution to self-diagnose their heart condition. This can also be used during exercise/physical activity.
The brain of this ECG247 Smart Heart Sensor is an nRF52832 SoC, based on a 64MHz, 32-bit ARM Cortex M4 processor with a floating-point unit (FPU). This processor is capable of handling the proprietory algorithm for continuously measuring and analyzing the electrical activity in the patient’s heart and detect any irregularity in the rhythm. Such complex algorithms need fast and accurate floating-point operations – here comes the powerful FPU of nRF52832. The nRF52832 is an ultra-low-power SoC that draws only a 5.5mA peak current while transmitting or receiving over the 2.4GHz band. This lets the patch run continuously for 14 days with a single CR2032 coin-cell battery.
Read more: APPSENS’S BLE WEARABLE ECG SENSOR POWERED BY NORDIC NRF52832 DETECTS ARRHYTHMIA
- What is the ECG247 Smart Heart Sensor designed to detect?
It is designed to detect atrial fibrillation and other major cardiac arrhythmias. - What are the main parts of the ECG247 Smart Heart Sensor?
It consists of a disposable electrode-patch and a reusable electronic sensor component. - What SoC powers the ECG247 Smart Heart Sensor?
The device is powered by the Nordic nRF52832 SoC. - What processor core does the nRF52832 use in this device?
It uses a 64 MHz, 32-bit ARM Cortex-M4 processor with a floating-point unit. - How long can the ECG247 Smart Heart Sensor run on a single battery?
It can run continuously for 14 days on a single CR2032 coin-cell battery. - Can the ECG247 Smart Heart Sensor be used during exercise?
Yes, the patient can use the solution during exercise and physical activity. - Why is the FPU in the nRF52832 important for this device?
The FPU enables fast and accurate floating-point operations needed by the proprietary continuous measurement and analysis algorithms. - What is the power characteristic of the nRF52832 when transmitting or receiving?
The nRF52832 draws a 5.5 mA peak current while transmitting or receiving over the 2.4 GHz band.
