Table 2.

Components technical specifications.

Device	Component	Characteristics	Description
Helmet	ALS-PT19 Ambient light sensor	- Supply Voltage: Vcc −0.5∼6.0 V - Vce = 5 V, Ev = 1000 Lx - Color Temperature = 6500 K	The ALS-PT19 is a low cost ambient light sensor, consisting of phototransistor in miniature SMD.
	MPU6050	- Supply Voltage, VDD −0.5 V to +6 V - Acceleration (Any Axis, unpowered) 10,000 g for 0.2 ms - Gyroscope Features: FSR of ±250, ±500, ±1000, and 2000${}^{\circ }$/s - Accelerometer Features: FSR ±2 g, ±4, ±8 and ±16 g - Nonlinearity (typ.) (A): 0.5% (G): 0.2% - Sensitivity Scale Factor: (G.typ) 131, 65.5, 32.8, 16.4 LSB (${}^{\circ }$/s) (A.typ) 16.384 LSB/g, 8.192 LSB/g, 4.096 LSB/g, 2.048 LSB/g - Sensitivity Scale Factor Tolerance: (G) ±3% FSC: Full Scale Range	The MPU6050 module contains a three-axis gyroscope with which we can measure angular velocity and a 3-axis accelerometer with which we measure the X, Y and Z components of the acceleration, the accelerometer works on the piezo electric principle, it also has a temperature sensor.
	NeoPixel Adafruit LED strip	- Supply Voltage: Vcc +6.0∼+7.0 V - Low voltage output current: 18.5 mA and 10 mA (min) - Operation Frequency: 800 KHz	Neopixel stick 8 × 5050 RGBW LEDs ∼3000 K
	Square Force-Sensitive Resistor (FSR)	- Actuation Force ∼0.2 N min - Force Sensitivity Range: ∼0.2 N–20 N - Force Repeatability Single Part +/− 2% - Force Repeatability Part to Part +/− 6% (Single Batch)	FSRs are sensors that allow you to detect physical pressure, squeezing and weight.
	BME680	- Digital interface I2C (up to 3.4 MHz) and SPI (3 and 4 wire, up to 10 MHz) - Supply voltage: VDD: 1.71 V to 3.6 V - VDDIO: 1.2 V to 3.6 V - Operating range −40–+85 °C, 0–100% r.H., 300–1100 hPa	The BME680 is a digital 4-in-1 sensor with gas, humidity, pressure and temperature measurement based on proven sensing principles.
Belt	MPU6050	- Supply Voltage, VDD −0.5 V to +6 V - Acceleration (Any Axis, unpowered) 10,000 g for 0.2 ms - Gyroscope Features: FSR of ±250, ±500, ±1000, and 2000${}^{\circ }$/s - Accelerometer Features: FSR ±2 g, ±4 g, ±8 g and ±16 g - Nonlinearity (typ.) (A): 0.5% (G): 0.2% - Sensitivity Scale Factor: (G.typ) 131, 65.5, 32.8, 16.4 LSB (${}^{\circ }$/s) (A.typ) 16.384 LSB/g, 8.192 LSB/g, 4.096 LSB/g, 2.048 LSB/g - Sensitivity Scale Factor Tolerance: (G) ±3% FSC: Full Scale Range	The MPU6050 module contains a three-axis gyroscope with which we can measure angular velocity and a 3-axis accelerometer with which we measure the X, Y and Z components of the acceleration, the accelerometer works on the piezo-electric principle, it also has a temperature sensor.
	KY-038 sensor	Analogue Signal, VDD: 3.3 V	Microphone sound sensor module
Bracelet	Thermocouple Type-K	- Precision: ±1 °C - Output range: −6 to 20 mV	Glass braid insulated stainless steel tip, which can be used in high temperature.
	Heart Rate Monitor Sensor	- Input Voltage (Vin): 3.3–6 V (5V recommended) - Output Voltage: 0 - Vin (Analogue), 0/ Vin (Digital) - Operating current: <10 mA	It is based on PPG techniques, to detect blood volume changing in the microvascular bed of tissues.
	BMI160 Inertial sensor (IMU)	- Sensitivity (typ.) Acc. ±2 g: 16,384, ±4 g: 8192, ±8 g: 4096, ±16 g: 2048 LSB/g - Sensitivity (typ.) Gyro. ±125${}^{\circ }$/s: 262.4, ±250${}^{\circ }$/s: 131.2, ±500${}^{\circ }$/s: 65.6 LSB/${}^{\circ }$/s - TCS (typ.) (A): ±0.03%/K (G): ±0.02%/K - Nonlinearity (typ.) (A): 0.5 %FS (G): 0.1 %FS - Offset (typ.) (A): ±40 mg (G): ±3${}^{\circ }$/s - TCO (typ.) (A): ±1.0 mg/K (G): 0.05${}^{\circ }$/s/K	It is an inertial measurement unit (IMU) consisting of a state-of-art 3 axis, low-g accelerometer and a low power 3 axis gyroscope.
	Square Force-Sensitive Resistor (FSR)	- Actuation Force ∼0.2 N min - Force Sensitivity Range: ∼0.2 N–20 N - Force Repeatability Single Part +/− 2% - Force Repeatability Part to Part +/− 6% (Single Batch)	FSRs are sensors that allow you to detect physical pressure, squeezing and weight.