SenStick: Comprehensive Sensing Platform with an Ultra Tiny All-In-One Sensor Board for IoT Research

Table 1

Comparison of competitive sensors.

Size (mm)	50 () × 10 () × 10 ()	50 () × 10 () × 10 ()	42 () × 32 () × 10 ()	44 () × 27 () × 11 ()	37 () × 46 () × 12 ()	23 () × 32.5 () × 7.6 ()
Weight (g)	3.5		28	—	22	7
Stand-alone recording	○					○
Smartphone app.	○		○	○
Desktop app.	○		∆		○	○
Battery life	15 (hour)		1 (year)	1 (year)	6 (hour)	6 (hour)
Battery type	Rechargeable/removable	Rechargeable	Coin battery	Coin battery	Rechargeable	Rechargeable
Network	BLE		BLE	BLE	Bluetooth 2.0	BLE
Data processing	○
I2C Extension	○
Sensors
Acceleration	○		○	○	○	○
Gyro	○		○		○	○
Magnetic	○		○	○	○	○
Air pressure	○		○	○	○	○
Temperature	○		○	○		○
Humidity	○		○	○
Light	○		○	○
UV	○			○
Mic			○