[Retracted] Research and Development of an IoT-Based Remote Asthma Patient Monitoring System

Table 1

Cost of the components.

Sl no.	Component name	Model number	Quantity	Cost/Unit (USD)	Cost/Unit (BDT)
1	Heart rate and pulse oximeter	MAX30100	1	11.09	942.65
2	IF noncontact precision thermometer	MLX90614	1	12.80	1088
3	Temperature and humidity sensor	DHT11	1	6.35	539.75
4	Gas and air quality sensor	MQ-135	1	2.24	190.40
5	ECG sensor	AD8232	1	19.95	1695.75
6	Microcontroller	NodeMCU ESP8266	1	10	850
Total cost:				63(approx.)	5307 (approx.)