Designed by Nova Radio Labs in the US, the Novaduino Environmental Sensor Kit is an Arduino-programmable air quality and ...

FireBeetle 2 ESP32-C5 IoT development board offers GDI display interface, LiPo battery support, 18x GPIO, USB-C port, and ...

Abstract: The pH value plays the highest role in water quality because good water pH quality will improve the welfare and growth of fish. Therefore, pH monitoring should be conducted routinely, but it ...

This paper describes the design and development of a passive wireless pH sensor tag. Under wireless interrogation, the sensor tag changes the phase of the interrogation signal according to the pH. The ...

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