PUFFIN – BLE Data Logget

PUFFIN – BLE Data Logget

Product Brief

Puffin is a BLE-enabled logger with built-in environmental and motion sensors. Leveraging BLE, the logger enables easy, fast set up and data download directly to the mobile app. Also, the logger has a micro-SD card provision which helps in logging the sensory measurements for a fixed interval of time. The small form factor and compactness makes the Puffin suitable to deploy in hard-to-reach and limited locations.

Technical Specification

Input power • LiPo Battery with typical voltage 3.7V

• Rechargeable through micro-USB



CPU • ARM® Cortex®-M4 32-bit processor with FPU, 64 MHz
Memory • 64 kB RAM
Storage • 512 kB flash
System I/O

interface ports

• 1 x micro-SD connector

• 1 x micro-USB female connector

Connectivity Bluetooth • Integrated BLE radio

• BLE 4.2

• 2.4GHz RF Chip Antenna

LED indications • 1 x RGB LED

Sensor Specifications

Sensor Specifications Sensor technical details are captured in the below table.

9-axis motion sensor Acceleration ±2g, ±4g, ±8g, ±16g 16-bit resolution
Magnetic field ±4800 uT 16-bit resolution
Geomagnetic sensor Magnetic field ±1300pT (x,y axis),

±2500pT (z-axis)

Magnetic field

resolution -0.3pT

Accelerometer Acceleration ±2g, ±4g, ±8g, ±16g 12-bit resolution
Barometric sensor with integrated

temperature sensor

Absolute Pressure 260 – 1260 hPa 24-bit resolution


±0.1 hPa(0oC to 65oC)

Temperature -40 to +85 °C <0.01 oC resolution

Accuracy: ±0.8oC

Humidity sensor with integrated

temperature sensor

Absolute Pressure 0 to 100% RH 16-bit resolution Accuracy:

±3.5% RH(20 to 80% RH)

±5% RH(0 to 100% RH)

Temperature -40 to +120 °C 16-bit resolution Accuracy:

±0.5oC(15oC to +40oC)

±1oC(0oC to +60oC

Gas Sensor eCO2 400 ppm to 32768 ppm
eTVOC 0 ppb to 32768 ppb
Ambient Light Sensor Light 0.01 to 83000 lux 23-bit resolution

Max. sensitivity at 550 nm


Monitor weather conditions

Monitor indoor air quality

Monitor indoor light

Shock & Vibration monitoring