ESP8266 We will learn about the IoT-based smart agriculture and automatic irrigation system with Nodemcu ESP8266 in this project. Agriculture is a key part of how agricultural countries grow and change. Some problems with agriculture have always kept the country from getting better. So, the only way to solve this problem is through smart agriculture, which involves making traditional ways of farming more modern. So, the method is to use automation and Internet of Things (IoT) technologies to make farming smart. Internet of Things (IoT) makes it

possible to do things like monitor and choose crops based on their growth, help with automatic irrigation decisions, and more. We suggested the ESP8266 IoT Automatic Irrigation System to make the crop more modern and productive. This project shows how to make IoT Smart Agriculture with Automatic Irrigation System using some simple sensors that are already on the market. Capacitive Soil Moisture Sensor will be used to measure the amount of water in the soil. In the same way, we prefer the DHT11 Humidity Temperature Sensor to measure the temperature and humidity of the air. We'll be able to control the Water Pump with a 5V Power relay. When the sensor sees that the soil doesn't have enough water, the motor turns on by itself. So, the field will automatically get water. When the ground gets wet, the motor stops. Through the online Thingspeak Server, you can watch all of this from anywhere in the world. Capacitive Soil Moisture Sensor

This is an analog capacitive soil moisture sensor. It uses capacitive sensing to measure the amount of water in the soil. This means that the capacitance changes based on how much water is in the soil. You can turn the capacitance into a voltage level from 1.2V at the lowest to 3.0V at the highest. The good thing about Capacitive Soil Moisture Sensor is that they are made of a material that doesn't rust, so they last a long time. DHT11 Temperature and Humidity Sensor The DHT11 is a simple, very cheap digital sensor for measuring temperature and humidity. To measure the air around it, it has a capacitive humidity sensor and a thermistor. On the data pin, it spits out a digital signal. It's easy to use, but you have to time it right to get data. The only real problem with this sensor is that it only gives you new data every two seconds. So, when using the library, sensor readings can be up to two seconds old. We will use this sensor in this project to measure the temperature and humidity of the air. DC 3-6V Mini Submersible Micro Water Pump The DC 3-6 V Mini Micro Submersible Water Pump is a small Submersible Pump Motor that doesn't cost a lot of money. It runs on a power supply of 2.5 to 6V. It can hold up to 120 liters per hour and only uses 220 mA of electricity. Just hook up the tube pipe to the motor outlet, put it under water, and turn it on.

NodeMCU ESP8266 Soil Moisture Sensor OLED Display

DHT11 Sensor Relay Module 5V DC Motor Pump 5V Connecting Wires Breadboard

Let's look at the project plan for the IoT Smart Agriculture and Automatic Irrigation System. For most of my projects, I use Fritzing to make a schematic. All you have to do is put something in place and connect it.

Now we need to set up the account for Thingspeak. Follow these steps to

Step 1: Go to https://thingspeak.com/ and fill out the information to make an account. Step 2: Make a new channel by clicking on "Channel" and filling in the following information, as shown in the image below.

Step 3: Click on API Key. The "Write API Key" button will appear. Make a copy of the API Key. This is very important, and Code Part will need it. Step 4: You can click on "Private View" and change how the window looks to suit your needs.

Testing & Results This water pump must be completely covered with water. The pipe is kept in a field that needs watering. In the same way, the soil moisture sensor is put into the soil.

The OLED will start showing the Soil Humidity, Air Humidity, and Air Temperature as soon as you turn on the device. It shows the data as it is right now. When there isn't enough water in the soil, water pumps turn on and water the field until there is enough water. In the video below, you can see how it all works. With Thingspeak Server, you can look at the data online from anywhere in the world. To do that, you need to go to the Thingspeak server's private view. You can check the temperature, humidity, and moisture of the soil, as well as the status of the relay.