Nano Sensor and Controller Circuit
Components
Component | Function | Voltage | Pins |
|---|---|---|---|
| Ultrasonic Distance Sensor (HCSR04) | Measures how close an object is. | 5V | Digital Out (Trigger) Digital In (Echo) |
| PIR Motion Sensor (HSR501) | Detects motion. | 5V | Digital Out |
| Gas Sensor (MQ-Series) | Detects gas. | 5V | Analog Out |
| Soil Moisture Sensor and Probe | Measures soil moisture. | 5V | Analog Out Digital Out |
| Raindrop Detection Sensor | Detects raindrops or water accumulation. | 5V | Analog Out Digital Out |
| Submersible Water Pump | Pumps water from container. | 5V | Analog Out Digital Out |
| LoRa Module (SX1278-RA02) | For LoRa communication between boards. | 3.3V | SPI |
| Logic converter | To connect 3.3V modules to 5V Nano | 5V/3.3V | Pin to Pin |
| I2C LCD 16x2 | Used to display data | 5V | I2C |
| LED Module | Used as a visual indicator | 3.3V | Digital Out |
| Buzzer Module | Used as an audio indicator | 3.3V | Digital Out |