Wireless Communications and Mobile Computing

Research Article

[Retracted] IoT-Based Remote Health Monitoring System Employing Smart Sensors for Asthma Patients during COVID-19 Pandemic

Table 3

Cost table for the developed system.
ComponentsPrice in BDTApproximate price in USD
Arduino Uno R3 boardBDT 599USD 7.00
Gas sensor MQ135BDT 120USD 1.40
Humidity sensor DHT 11BDT 240USD 2.81
Temperature sensor MLX90614BDT 1099USD 12.84
Pulse sensorBDT 290USD 3.39
Bluetooth module HC 05BDT 400USD 4.68
LCD displayBDT 310USD 3.62
Breadboards x 2BDT 102/pcUSD 1.19/pc
Jumper wiresBDT 130/boxUSD 1.53/box
Led lightsBDT 6/pcUSD 0.70/pc
BuzzersBDT 15/pcUSD 0.18/pc
TotalBDT 3440USD 40.12