20 APRIL 2012
It is week
13..!!! After doing etching for standalone Arduino and alarm timer for my
circuit, it’s time for testing. First of all, I check the connection and
continuity using multimeter. Unfortunately, I found that there is much
connection broken. So, I refer with Miss Siti; technician level 1 electric lab.
She suggest to re-do again the PCB DipTrace layout, by “bold” the connection
line; as the line is too thin. Time is running out, and I need to go to Jalan
Pasar again, to buy new UV board. After repeating the etching process, I test
the connection and continuity again; thank god it is well connected..! =)
 |
| Broken Connection |
It’s time
for inserting and solders the component to the PCB. As I’m not doing this
soldering work for a long period, it is a bit smudgy… but, I manage to finish
it in few hours and start testing. It is not functioning… I try to troubleshoot
it by re-check the connection. But, still the same. One of my friend suggested
to use different battery or replace the battery by adapter; because it might be
not functioning because of not enough supply, as the battery power reduce each
time we use it. After try all the suggestion, it is still not functioning. So, I
try to compare the circuit with the one in the internet. Referring to the
circuit, I jump wire emerge from voltage regulator (5V), direct to pin number 7
Atmega. What a release, it is functioning.. =)
Lastly, it’s
time for uploading full programming in the Atmega and testing overall function.
