Date Available
12-10-2014
Year of Publication
2014
Document Type
Master's Thesis
Degree Name
Master of Science in Electrical Engineering (MSEE)
College
Engineering
Department/School/Program
Electrical and Computer Engineering
Advisor
Dr. Zhi D. Chen
Co-Director of Graduate Studies
Dr. YuMing Zhang
Abstract
A humidity sensor can be used to measure the moisture content of the environment. The physical change of the sensor expresses as the change of electrical property like capacitance, resistance, voltage, current, frequency, etc. In order to process these analog signals digitally, microprocessor is involved in the measurement. This thesis presents design of a circuit to measure low moisture levels. The 16-bit RISC mixed signal microcontroller MSP430F249 from Texas Instruments will be used. The circuit has good performance at extremely low humidity levels.
Meanwhile, a small real time operating system kernel FreeRTOS, a market leading RTOS from Real Time Engineer Ltd is ported to the microcontroller. The basic concept about FreeRTOS and how to port this RTOS to MSP430F249 microcontrollers will be the topics of this thesis as well.
Recommended Citation
Chen, Bojie, "HUMIDITY SENSOR CIRCUIT USING REAL TIME OPERATING SYSTEM (FREERTOS) KERNEL" (2014). Theses and Dissertations--Electrical and Computer Engineering. 61.
https://uknowledge.uky.edu/ece_etds/61
Included in
Electrical and Electronics Commons, VLSI and Circuits, Embedded and Hardware Systems Commons
