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NPK sensor · Modbus RS485 projects

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IoT Soil Nutrient Monitor with NPK and pH Sensing — project thumbnail preview
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IoT Soil Nutrient Monitor with NPK and pH Sensing

This project builds an IoT soil nutrient monitor that measures nitrogen, phosphorus and potassium with an NPK sensor probe, s...

ESP32 · Wi-Fi Arduino IDE · C/C++ NPK sensor · Modbus RS485
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