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Clock-Frequency Switching Technique for Energy Saving of Microcontroller Unit (MCU)-Based Sensor Node

Author

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  • Pumin Duangmanee

    (School of Telecommunication Engineering, Suranaree University of Technology, Nakhon Ratchasimina 30000, Thailand)

  • Peerapong Uthansakul

    (School of Telecommunication Engineering, Suranaree University of Technology, Nakhon Ratchasimina 30000, Thailand)

Abstract

In this paper; a technique is proposed for reducing the energy consumption of microcontroller-based sensor nodes by switching the operating clock between low and high frequencies. The proposed concept is motivated by the fact that if the application codes of the microcontroller unit (MCU) consist of no-wait state instruction sets, it consumes less energy when it operates with a higher frequency. When the application code of the MCU consists of wait instruction sets; e.g., a wait acknowledge signal, it switches to low clock frequency. The experimental results confirm that the proposed technique can reduce the MCU energy consumption up to 66.9%.

Suggested Citation

  • Pumin Duangmanee & Peerapong Uthansakul, 2018. "Clock-Frequency Switching Technique for Energy Saving of Microcontroller Unit (MCU)-Based Sensor Node," Energies, MDPI, vol. 11(5), pages 1-13, May.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:5:p:1194-:d:145269
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    References listed on IDEAS

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    1. Akhtar, Fayaz & Rehmani, Mubashir Husain, 2015. "Energy replenishment using renewable and traditional energy resources for sustainable wireless sensor networks: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 45(C), pages 769-784.
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