Low-power MCUs aid environmental monitoring by collecting accurate data

Low-power MCUs aid environmental monitoring by collecting accurate data

The ADC then discharges CSl and charges it with the same oscillating signal through the variable value component, RSl. In this case, RSl is a component whose resistive value is dependent upon an environmental condition. The amount of time it takes to charge the cap to the same predetermined level th...

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Veröffentlicht in:Electronics Weekly 2013-04 (2545), p.16
1. Verfasser: Wagner, Raimund
Format: Artikel
Sprache:eng
Schlagworte:
Circuits
Controllers
Data collection
Design
Design engineering
Designers
Energy consumption
Energy efficiency
Environmental monitoring
Humidity
Semiconductors
Sensors
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Zusammenfassung:The ADC then discharges CSl and charges it with the same oscillating signal through the variable value component, RSl. In this case, RSl is a component whose resistive value is dependent upon an environmental condition. The amount of time it takes to charge the cap to the same predetermined level through RSl is recorded. A temperature, humidity or CO2 concentration-sensitive device could easily be used as RSl to make the associated measurement.
ISSN:0013-5224