Wireless Microcontroller-based monitoring instrument usinf RF transmitter and receiver modules

Date

3-2004

Degree

Bachelor of Science in Applied Physics

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Zaldy A. Andales

Abstract

A wireless microcontroller-based monitoring instrument was designed and implemented. With the use of miniaturized RF modules, digital data was made to travel via wireless simplex transmission. These modules operate at 418M11z and are designed as unlicensed transmitters and receivers for on and off pulse applications only. The transmitter unit consists of the sensing element, an 8-bit ADC for analog-to-digital conversion, a microcontroller, and a TM I V transmitter module. The data from the ADC is relayed to the microcontroller which sends the data through its UART. The TM I V RF module then sends the data at a fixed baud rate of 2400 bps. Data is then received by the RMIV module which delivers every bit of data to the receiver unit's microcontroller UART. The UART Register is read and digital data is converted to its equivalent temperature value in Celcius and Farenheit. An LCD display is incorporated for display of values. The microcontrollers were compiled using linage Craft ICCAVR ver. 6.26B and were debugged in AVR Studio ver. 3.56C. Data was gathered using water and engine oil as specimen for temperature measurement_ Data transmission was successful and showed great efficiency even up to 200 feet of line-of-sight ( LOS) distances.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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