Day 22 (31 May 2011)

Worked  on serial communication using processing language . values 13 and 10 were always sent. Finally it was found that it was because of using println command instead of print.  13 is the ASCII value of carriage return and 10 is the ASCII value of' '\n'. Worked on the graphics part of making the oscilloscope. The sampling rate was restricted to once every 5 ms. 

Day 21(30th May 2011)

Added data sheets and worked more on the report. Started working on processing language. 

Day 20 (27th May 2011)

The code was included in the report. Circuit diagrams for LCD, tactile keypad and the main circuit were completed. 

Day 19 (26th May 2011)

Worked on serial communication with Matlab. Was using fscanf() to read the data. There was excessive delay in the code. This was because a terminator was expected which was not transmitted . Hence the execution stops for one timeout(which was 10 s). fread() was used instead. The problem was fixed.

Day 18(25th May 2011)

Elaborated more on the microcontroller, filter and feedback unit. Made flowchart for the main function, setvalue function, ramp function and calibrate function.

Day 17(24th May 2011)

Started report. Wrote the problem statement, Design Approach and started implention. Explained each unit briefly.