Our Goal is to design energy efficient IoT based home automation system for future smart home using WIZnet W5100S-EVB-PICO as heart of the project, it is connected to internet via Ethernet connection using onboard WIZnet W5100S.
Various actuators and EnOcean Energy Harvesting wireless sensorsare communicating to WIZnet W5100S-EVB-PICO using NRF24L01 and EnOcean 868 Transceiver via SPI and UART protocol respectively.
Received sensor data will be sent to client Android Application via our custom MQTT broker running on Amazon AWS EC2 instance over Ethernet by W5100S-EVB-PICO. Further Android App can trigger the actuators and all sensor data are displayed in mobile app in realtime.
Further all sensor data and actuator status will be displayed on 0.96 inch OLED display interfaced with W5100S-EVB-PICO over I2C. Each wireless sensor nodes are powered using normal room light/mechanical effort. Following components will be used in the project…
Smart Home IoT HUB:
1. W5100S-EVB-PICO – RP2040 as main processor for HUB and W5100S for Ethernet connection.
2. EnOcean 868 Transceiver
3. nRF24L01 Transceiver
4. 0.96 inch OLED Display Sensors: 1. Reed switch based magnetic door open/close sensor (EnOcean STM 320 – Ambient light energy harvesting) 2. Temperature and Soil Moisture sensor. (EnOcean STM330 – Ambient light energy harvesting) 3. Room Temperature sensor. (EnOcean STM330 – Ambient light energy harvesting) 4. Rocker Switch (EnOcean PTM120 – Mechanical energy harvesting) Actuators: 1. RGB Mood Lighting Wireless Control module. (nRF24l01) 2. Wireless Relay module to turn on/off 4 appliances. (nRF24L01)
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