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

School of Telecommunication Engineering, Suranaree University of Technology, Nakhon Ratchasimina 30000, Thailand
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Energies 2018, 11(5), 1194; https://doi.org/10.3390/en11051194
Received: 27 April 2018 / Revised: 5 May 2018 / Accepted: 7 May 2018 / Published: 8 May 2018
(This article belongs to the Section Electrical Power and Energy System)
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%. View Full-Text
Keywords: energy saving; microcontroller unit (MCU); clock frequency energy saving; microcontroller unit (MCU); clock frequency
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MDPI and ACS Style

Duangmanee, P.; Uthansakul, P. Clock-Frequency Switching Technique for Energy Saving of Microcontroller Unit (MCU)-Based Sensor Node. Energies 2018, 11, 1194. https://doi.org/10.3390/en11051194

AMA Style

Duangmanee P, Uthansakul P. Clock-Frequency Switching Technique for Energy Saving of Microcontroller Unit (MCU)-Based Sensor Node. Energies. 2018; 11(5):1194. https://doi.org/10.3390/en11051194

Chicago/Turabian Style

Duangmanee, Pumin; Uthansakul, Peerapong. 2018. "Clock-Frequency Switching Technique for Energy Saving of Microcontroller Unit (MCU)-Based Sensor Node" Energies 11, no. 5: 1194. https://doi.org/10.3390/en11051194

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