The main aim of the project is to control multiple electrical loads remotely over internet falling under the basic principles of Internet of Things-IOT. For this real-time scenario we develop an Android application and install on any smart cell phone with user configurable front end (GUI).
The data sent from the cell phone upon touch commands are sent through allotted IP fed to it, to any nearby wireless modem which is then received by a Wi-Fi module interfaced to controller, under TCP IP via networked wireless modem environment.
Relays are then driven as per the command received at the controller end to handle electrical loads. The real time data can also saw at the receiving end using web or app display interfaced to the controller that displays the status of the loads too.
The power supply consists of a step down transformer 230/12V, which steps down the voltage to 12V AC. This is converted to DC using a Bridge rectifier and it is then regulated to +5V using a voltage regulator 7805 which is required for the operation of the controller , 3.3 volt for the Wi-Fi unit and other components.
- A to D converter
- Temperature sensors
- Voltage Regulator
- WiFi module (ESP 8266 OR Node MCU) as required
- Arduino IDE
- Language: Embedded C