This weekly report summarizes the progress of an engineering student group working on a touch screen circuit design project. This week, the group tested a flip flop circuit using 3 switches as inputs, but found the circuit had noise issues from the switches. The circuit connects to a touch screen via an IC touch controller. Next week, the group will redesign the touch screen and flip flop circuits to operate at a higher 6V supply voltage instead of 5V to address instability issues. The report includes figures of the operation screen and block diagram of the system.

1. [INC 281 MULTIDISCIPLINARY WORKSHOP WEEKLY REPORT] January 20, 2012
Name-
Phison Phumchun
Surname
Student ID. 53219007
Group Name Fueng
Engineering
Arm , Por , Fam , Snook , Kwang
Team
, Will , Mart , Neung , Peak , Art
Members
Product Design
P’Mhor , P’Pum , P’Mint , P’Pin ,
Team
P’Best
Members
Weekly Progress
This week .We make Flip Flop circuit for latch and reset status testing inside the circuit by
get input through 3 switches into the circuit. The result has noise from switch affect circuit’s
unstable. But the circuit is touch screen circuit 3 function pattern that connect to Flip Flop circuit by
pass IC Touch for connect to touch screen circuit.
Figure 1. Operation screen Figure 2. Block diagram
Engineering Analysis
Strong Point
IC Touch receives many input, output and oscillator, system clock circuit, and the sensitivity
for level touch inside 1 IC Touch.
Week Point
Sensitivity touch have choose many value for the 1 IC touch and the affect is input may be
unstable for working on touch screen.
Next Week Job
Design touch screen and flip flop circuit by set voltage from supply 5 volt becomes 6 volt.
Department of Control System and Instrumentation Engineering
KING MONGKUT’s UNIVERSITY OF TECHNOLOGY THONBURI