Table 2.
Power consumption by SBHMAS sensors and actuators.
| Sensor | Active Current | Standby Current | Peripheral | Data Log Current | Transmission Current |
|---|---|---|---|---|---|
| MCU | 0.029 μA | 0.4995 μA | 0.032 μA | 0.0036 μA | N/A |
| DHT11 | 200 μA | 40 μA | 0 | 1 mA | N/A |
| MQ135 | 40 mA | 2 mA | 0 | 0.1–0.3 V | N/A |
| Piezoelectric module | 0.8 μA | 3.3 V | 0 | 0 | N/A |
| Flame sensor | 15 mA | 40 mA | 0 | 0 to 5 V at 2 s | N/A |
| LoRa node | 157 dB | 45 μ A | 20 dBm | ||
| PIR (motion sensor) | 1.3 μA at 3 V | 1.9 μA | N/A | 100 μA | N/A |
| Thermoelectric heater | 1.2 Watts at 5 V | 0 | N/A | N/A | N/A |
| Fan | 0.14 A at 5 V | 0 | N/A | N/A | N/A |
| Digital camera | 150 Μa | 40 Μa | 0 | 1 Ma | N/A |
| GPS | 75 Μa | 20 Μa | 10 Ma | 1 Ma | 5 dbm |