Technological advances play an important role in all fields including in the realm of Agricultural Engineering. Agricultural Engineering is a field of science that has a lot to do with the development of agricultural technology. Utilization of technology in agriculture can optimize the performance of farmers. Hence, technology in the realm of agriculture is increasingly being developed. One approach is by utilizing the internet network to conduct a monitoring system in a greenhouse. Greenhouse is defined as a constructed building that functions to manipulate the desired environmental conditions in plant maintenance, so that plants will be more controlled and provide more optimal results compared to plants that are cultivated outside the greenhouse. However, the use of internet technology in greenhouse monitoring systems is still limited. Based on this, the author wants to utilize the internet by creating a greenhouse system that can be monitored remotely with an internet network using the thingspeak application on smartphone. The project aims in designing a Greenhouse monitoring system which is capable of identifying the humidity, temperature, light intensity and soil moisture content using Node MCU and thingspeak. The system uses LDR sensor for detecting light intensity and based on that it will control the light. Here relay works as a switch to on/off the bulb, water pump received the signal from nodeMCU. NODEMCU will control the Fan speed according to the temperature and it will control the water pump based on soil moisture sensor. Node MCU continuously read the sensor data and control the devices accordingly and also upload this sensor data into the thingspeak cloud along with date and time. User can access this sensor data with his credential from anywhere in the world by using mobile.   The system makes use of NodeMCU microcontroller. The project aims in designing a smart farm using IOT and NodeMCU module. NodeMCU is an open-source platform based on ESP8266 which can connect objects and let data transfer using the Wi-Fi protocol. In addition, by providing some of the most important features of microcontrollers such as GPIO, PWM, ADC, and etc, it can solve many of the project's needs alone.

 

The main blocks of this project are:

• Adapter Power Supply.
• NodeMCU.
• DHT11(temperature, Humidity Sensor).
• Rain sensor.
• Soil Moisture Sensor.
• Relays.

Software’s used:

1. Arduino IDE for compiling and dumping code into Microcontroller
2. Express SCH for Circuit design.

     

 

Block Diagram: video: