This weekly report discusses an engineering project involving connecting an RFID module to a microcontroller. [1] It describes using a breakout board with an ID 12 RFID module that connects to the microcontroller using only three pins. [2] An example code is provided to establish serial communication between the RFID module and microcontroller. [3] The report analyzes the project's strong point of the easy breakout board connection and weak point of the microcontroller's expensive cost and challenges connecting the RFID to the microcontroller.

1. [INC 281 MULTIDISCIPLINARY WORKSHOP WEEKLY REPORT] March 22, 2012
Name-Surname Wijak Pornsukvitoon
Student ID. 53211827
Group Name KID-WA Company
Engineering
Care, Pop, Forn, Lek, Apple, Pead, Disk
Team Members
Product Design
P’Joy,P’Kog,P’Tong,P’Aru
Team Members
Weekly Progress
Connection to use ID 12 Breakout board with microcontroller must to use 3 pin only, pin D0,pin 5V
and pin GND.Pin 0 connection to MCU that serial RX.Signal of output from ID 12 Module is TTL.Pin 5V
and pin GND are connect to microcontroller. Using the breakout board from sparkfun, the pinout is as
seen in the image below.Connect the led+resistor to pin 10, serial connection to pin 9, ground to pins 1
and 7, +5v to pins 2 and 11.
Example is code to connection between RFID and MCU is follow :
char val = 0; // variable to store the data from the serial port
void setup() {
Serial.begin(9600); } // connect to the serial port
void loop () {
// read the serial port
if(Serial.available() > 0) {
val = Serial.read();
Serial.print(val, BYTE); }
}
Figure 1 ID 12 Breakout board Figure 2. Pin of ID 12 Breakout board
Engineering Analysis
Strong Point
-Easy to use ID 12 Breakout board because use 3 pin only.
Week Point
-Cost is expensive of microcontroller.
-Connection from RFID to microcontroller is problem.
Next Week Job
-Solve problem that RFID is cannot to connect to microcontroller.
Department of Control System and Instrumentation Engineering
KING MONGKUT’s UNIVERSITY OF TECHNOLOGY THONBURI