Wireless Sensor Node And Remote Data Receiver Using Arduino

The Wireless Sensor Node And Remote Data Receiver system is split into two primary hardware sections powered by Arduino Nano microcontrollers: a remote sensing node and a base station receiver. At the remote node, an Arduino Nano periodically queries multiple analog and digital inputs to gather environmental data. A DHT11 sensor captures ambient temperature and relative humidity, an LDR (Light Dependent Resistor) measures ambient light levels through a voltage divider circuit, and a soil moisture sensor evaluates volumetric water content in the earth. Additionally, a Real-Time Clock (RTC) module timestamps the collected sensor readings. Once the data payload is assembled, the Arduino Nano interfaces with a 433MHz ASK RF Transmitter Module paired with a tuned antenna to broadcast the sensor packet wirelessly through the air. At the remote data receiver end, a matching 433MHz ASK RF Receiver Module captures the radio frequency waves via its own antenna. A second Arduino Nano decodes the incoming serial data stream, allowing the system to process, log, or display the real-time environmental metrics collected from across the monitoring zone. Power for the remote node is typically supplied by a portable battery pack, making the entire sensor station self-contained and deployable away from fixed wall outlets.