eAgrar - digital agriculture

System for monitoring conditions of plants and weather conditions at agricultural fields

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eAgrar is system for monitoring conditions of plants and weather conditions at agricultural fields.

It is based on wireless sensor network (LoRa communication).
Sensor devices are "plug-and-play" devices. They are battery powered (more than 1 year on same battery) and have long range communication (up to 10km from gateway). Device is based on ATmega328 microprocessor and have sensors for measuring air temperature, air humidity, pressure, soil moisture and leaf moisture.
Sensor devices send data to multichannel gateway which forward them to database.

All data are displayed at our dashboard through widgets, graphs and tables.

Climate change has a severe effect on agricultural production, leading to lower productivity. Farmers have big problems with diseases on their fields due to climate and weather shocks and lack of information from fields. As result of that crops are more sensitive and vulnerable. Farmers must use a lot of pesticides and other chemical agents to stop the development of the disease. That pollutes the environment.

With more information from fields, farmers can predict appearance of disease and prevently treat their plants. That will help them to reduce costs, reduce damages on plants, increase quality of crops and increase yields. Using chemical agents on clever way, in smaller quantities, will enable to customers get healthier food.

I'm developing this system for 18 months. All parts of system are developed from zero. 

This is second version of sensor device. It is based on ATmega328 microprocessor. It has LoRa module for communication and RTC (Real Time Clock) which is used as wakeup alarm of device. This version of device has possibility to connect up to 4 sensors

Device is powered from 3.7V Li-Ion battery and can be powered from same battery more than 1 year. There is also possibility to use 5V boost converter for powering 5V sensors.

Production of PCBs is made by @JLCPCB-OFFCIAL ( They have great option to take 10 prototype boards for just 2$! Check that! I'm really satisfied with quality of board. Pads and vias are solid and high quality even at high temperatures. They didn't rusted even in realistic conditions

I have developed system for controlling devices in LoRa wireless sensor network. So even that device is not connected to Internet all time, I'm able to change sleep time, communication parameters and other parameters remotely, without reprogramming device.

Dashboard is on Croatian language for now. It offers widgets for last measurements, graph for displaying temperature and another graph for displaying all other moisture measurements. Also, there is data table with all data shown from beginning of device life. There is calendar which have possibility to be diary of activities (leaving notes).

If you find this project exciting and useful, please, support it with Follow and Like. That will give us more chance to keep it developing :)

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JPEG Image - 75.73 kB - 04/29/2019 at 11:14


  • 1 × PCB board (JLCPCB production)
  • 1 × ATmega328 microprocessor
  • 1 × RTC (Real Time Clock)
  • 1 × RFM95W LoRa module
  • 1 × 3.7V Li-Ion battery

View all 9 components

View all 5 project logs

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earl hoge wrote 08/11/2021 at 12:47 point

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clarence buckley wrote 07/26/2021 at 12:10 point

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inaveni.616 wrote 07/15/2021 at 04:50 point

I love this I wish many people can see this it really makes sense. Website

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maxej84641 wrote 07/07/2021 at 11:27 point

Thank you for sharing this amazing post. keep up the great work

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maxej84641 wrote 07/07/2021 at 11:26 point

Great blog !! You should start many more. I love all the info provided. I will stay tuned.   

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i.n.a.ven.i616 wrote 07/05/2021 at 10:55 point

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i.n.av.e.ni616 wrote 06/28/2021 at 09:37 point

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mira.fadora wrote 06/28/2021 at 09:37 point

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tuckerwillie.9.65 wrote 06/23/2021 at 14:08 point

Is this already out in the market? How much is the retail price? Kitchen Remodel

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john mcKnight wrote 06/15/2021 at 05:16 point

can you help me to get agricultural vocabulary in this post?

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tuckerwillie.965 wrote 06/06/2021 at 06:28 point

Very good this eAgrar. I liked the one about planting

  Are you sure? yes | no wrote 05/30/2021 at 13:43 point

I'm a farmer from Indonesia. those tools shown will be very useful to me.

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kingjamescarl wrote 05/20/2021 at 07:50 point

This is a very brilliant idea. Keep it up.

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tuckerwillie9.6.5 wrote 05/19/2021 at 12:20 point

I can bend technology to my will and that will feel good to my ego and self-worth.

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i.n.aveni616 wrote 05/12/2021 at 05:50 point

You are my savior. Now I don't have to worry about my plants. Thanks a ton.

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Kim Sunday wrote 04/27/2021 at 04:02 point

A big thanks to the new technologies today. It's a huge help. - Cheers. Dan at

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tuckerwillie9.65 wrote 04/13/2021 at 11:30 point

Never get too much done on the farm. there’s always stuff to do.

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Eric Kraft wrote 04/12/2021 at 06:03 point

Great read! I always appreciate new information on the world news.


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ada.mranso793 wrote 04/08/2021 at 06:33 point

I just got started and am looking at how to house the PIR

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