Dimensions

• Diameter: 36,6 mm (1.44 in), thickness: 10,6 mm (0.42 in)
• Weight 10 g / 0.35 oz with battery
• Water resistant to 30 m/100 ft

MCU

• Nordic Semiconductor nRF52832 comprising 32 –bit ARM® Cortex®-M4 with 64 kB on-chip RAM and 512 kB on-chip FLASH
• Integrated Bluetooth Low Energy radio, 2,4 GHz

Memory

• External memory: 3 Mbit EEPROM

Sensors

• Accelerometer, range :±2/±4/±8/±16 g full scale, sampling frequency: 12.5/26/52/104/208/416/833 Hz
• Gyroscope, range: ±125/±245/±500/±1000/±2000 dps full scale, sampling frequency: 12.5/26/52/104/208/416/833 Hz
• Magnetometer, range: ±4/±8/±12/±16 gauss full scale
• Temperature, accuracy:±0.5°C (max) from 0°C to +65°C and ±1.0°C (max) from –40°C to +125°C
• Heart rate and single channel ECG

I/O

• Led (red) on the front
• 1 –wire interface master (accessible through Movesense connector)
• Debug UART, debug I/F, power & ground (inside the battery slot)

Energy source

• CR 2025 3V lithium coin cell battery

Software

• Easy to use C++ Movesense Device API
• iOS and Android libraries with wireless firmware update capability
• Open source iOS showcase application
• GNU tool chain for embedded ARM

Approvals and compliances

• CE, FCC, IC, C-Tick, CMIIT
• Conforms REACH, RoHS
• Bluetooth 4.2 / 5.0

Patents

• US 13/071,624, US 13/832,049, US 13/832,598, US 13/917,668, US 13/397,872, USD 667,127, US 8,386,009, US 8,750,959, US 8,814,574, US 8,886,281, others pending