NodeMCU Plant Party

This is a project to monitor the health of your plants and watering them when necessary, using a NodeMCU, a Capacity Soil Moisture Sensor v1.2, and several other things that we will document later.

It will send the data to a nodejs and display it in a web page.

You will see a graph with the moisture of the plant

A table with the sensor data sent

And a table with the events sent from the telegram bot, to note what you did, like changing deepSleep time, changing the battery or watering the plant

It will also send a message to a telegram bot with the moisture information

And lastly, it will send the data to an InfluxDB database, so you can use Influx UI, Chronograf and/or Grafana to display the data:

Hardware

• NodeMCU
• Capacity Soil Moisture Sensor v1.2
• Battery (not a powerbank, they usually poweroff and can't work with DeepSleep)
• rPi

How to configure and run the server

• Install Docker and Docker Compose
• Modify file server/init-mongo.js and change user and password there
• Modify the server/.env file and change the values there
• Go to the server directory and run docker-compose up -d

How to configure and run the NodeMCU

• Modify under esp32/config.h the following values:

  • DRY
  • WET
  • NUM_MEASURES
  • RELAY_PIN
  • DELAY_MEASURE_TIME
  • DELAY_DEEPSLEEP_TIME
  • SENSOR_1_PIN
  • SENSOR_2_PIN
  • SENSOR_3_PIN
  • SENSOR_4_PIN
  • SENSOR_5_PIN

• Modify under esp32/configNet.h the following values:

  • TZ_INFO
  • WIFI_SSID
  • WIFI_PASSWORD
  • SERVER_URL

• Upload the code to the NodeMCU

How to use the Node server

• Go to http://localhost:3000 to see the data
• Go to http://localhost:3000/json to see the data in JSON format
  • You can filter the data by adding the following parameters:
    • ?sensor=name-of-the-sensor
    • ?from=2022-01-01
    • ?to=2022-12-31
    • ?limit=10
    • ?sort=asc
    • ?sort=desc
    • ?name=name-of-the-sensor&from=2022-01-01&to=2022-12-31&limit=10&sort=asc....
• To push data to the server, you can use the following command:
  • curl -X POST -H "Content-Type: application/json" -d '{"sensor": "sensor-name", "data": {"moisture": 22}}' http://localhost:3000/send-data

How to configure InfluxDB

• Go to http://localhost:8086/
• Create a new user and password, and put plant_bucket as the default bucket.
• Go to Dashboards
• Click on Create Dashboard -> Import Dashboard, and import the file dashboards/INFLUX_UI_PLANT_PARTY.json
• Go to the dashboard and you will see the data

How to configure Chronograf

• Go to http://localhost:8888/
• Go to configuration and edit the current influxdb config
  • Enable InfluxDB v2 Auth
  • Put the organization id and token that you got in InfluxDB site
  • Update the Connection
• Go to Dashboards
• Click on import dashboard, and import the file dashboards/CHRONOGRAF_PLANT_PARTY.json
• Go to the dashboard and you will see the data

Diagrams