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An autonomous biochemical sensor capsule for the remote monitoring of an algae culture cultivated in a photobioreactor is presented. The encapsulated system has a spherical shape with a diameter of 44 mm. Radio communication with a carrier frequency of 433 MHz is used to transfer the acquired sensor data in the bioreactor to a base station outside. Experiments with the first prototype inside the bioreactor...
This letter presents a low-power miniaturized wireless sensor module, which can be reconfigured to interface with a variety of sensors as well as function as a receiver node. Measurements confirm that this circuit reads data from the sensors and transmits the information to a receiver through 50 m of air and 60 cm of fresh water with no packet loss.
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