Algorithm 3 Wireless sensor application (T, RH, light intensity, eCO2 and TVOC)
1:	Initialize components
2:	Test CCS811 operation
3:	Get batt. level
4:	whileTruedo                          ▹ Main app. loop
5:	Process BLE events
6:	if (1 min. passed) then
7:	Power up sensors
8:	Wake up all components
9:	Measure T and RH, save data to RAM
10:	Set light sensor for continuous operation
11:	Wait for light conversion
12:	Get light intensity, save data to RAM
13:	if (batt. level and light data from RAM > thresholds) then
14:	Set mode for gas sensor
15:	Start gas measurement
16:	Save gas sensor output to RAM
17:	end if
18:	Get batt. level, save data to RAM
19:	Compute thresholds values
20:	end if
21:	Update advertising payload with data from RAM
22:	Enter low power mode
23:	end while