A 35 dollar sensor turns a farmer's daily truck route into a high tech data network.
Large-scale soil monitoring usually requires expensive, power-hungry wireless networks that are hard to maintain in rural areas. This new platform uses solar energy to power battery-free sensors that communicate directly with existing farm vehicles. As the farmer drives past, the sensors upload their data to a mobile base station on the truck. This setup removes the need for infrastructure and cuts the cost of smart farming by thousands of dollars. It makes precision agriculture accessible to small-scale farmers for the first time. Data collection is now as simple as driving a tractor through a field.
Towards Low-Cost Low-Power Activity-Aware Soil Moisture Sensing Platform for Large-scale Farming
arXiv · 2604.26303
Deep understanding of a field's soil moisture content is the leading indicator for predicting crop yields and making data driven decisions for irrigation and application of topical chemicals for drought resilience. Despite this importance, the cost of adopting and maintaining IoT infrastructure prevents modern farms from employing widespread real time soil moisture sensors. We present an end-to-end platform of buried battery-free sensor nodes and a mobile basestation that leverages the farmer's