This weekly report summarizes the progress of the CONTHAI engineering team. They designed a PCB circuit for an electric rice cooker using Altium Designer software. The PCB is 59.184mm x 63.246mm and uses an ATMEGA32 microcontroller with resistors, LEDs, transistors, and connectors. LEDs are blinked using PWM from the microcontroller and interrupt timers. Strengths included designing the small PCB circuit with Altium. A weakness was not being able to successfully edit the program sequence. The next step is installing the PCB circuit in the rice cooker.

1. [INC 281 MULTIDISCIPLINARY WORKSHOP WEEKLY REPORT] April 25, 2012
Name-Surname Witsanu Thamneammai
Student ID. 54261522
Group Name conthai
Engineering (2B) chai, golf, rin, tum, kung, dew
Team Members (2A) bank, golf, june, benz, champ
Product Design dukdik, ake, L, friend
Team Members
Weekly Progress
Detail of week.
This week. I started to PCB circuit. I use software is Altium Designer Release 10 to design schematic and
then update schematic file to PCB file. The PCB size is 59.184mm. x 63.246mm. The board has Though-hold
component and one-track line adjacent pads. Main device of board is microcontroller "ATMEGA32" and other
device is resister,LED,transister and connector. The circuit used external power supply 5VDC. The input of
circiut connect from connector to external touch switch broad and output circuit show LED blink. I use PWM
from microcontroller control LED blink and use interrupt timer control time on-off LED.
Figure 1. Schematic Electric rice cooker of team Figure 2. PCB circuit
design
Engineering Analysis
Strong Point
- I can use Altium Designer Release 10 to design PCB circuit.
- The PCB circuit has small size when use microcontroller.
Week Point
- Team design want to change sequence program. So, I edit new program not success.
Next Week Job
- Must do install PCB circuit in Electric rice cooker.
Department of Control System and Instrumentation Engineering
KING MONGKUT’s UNIVERSITY OF TECHNOLOGY THONBURI