stop and stretch…

think on this: know your priorities, be responsible for it and just enjoy doing all of it…

i repeat: enjoy!!!

i’m having a great 2 weeks ^_^

thanks for the gift irc…

ms1 exam tomorrow

redbox + swimming on wed..

alvin’s birthday on sunday..

^____^v

hi! long time no post, I completely forgot I have a blog… haha… It’s the 1st week of June and start of classes was moved to June 16… I have 8 days before this school year starts! But before going into superior acad mode, I have to recall everything that happened during my wild summer experience!

Things I was addicted to:

1. Facebook Apps!

- Restaurant City! i now have a nice big restaurant (I am now in Level 23)…^_^ The game is really really simple but very addictive. Trading ingredients with friends,  I enjoy designing the place and myself, completing the recipes and competing with each other is indeed very addictive

- Pet Society.  This is like a bigger version of tamagotchi… you have a pet that you feed, clean and play with… although everything about pet society looks cute, it’s very hard to obtain money to buy stuff, hence my addiction is set to a minimal amout just so I could maintain an acceptable rank with my friends…

-Know-it-all plus other quizzes in fb. I have answered a number of crazy and educational quizzes in fb! ^__^v

2. MyBrute

- i got a lot of brutes: poporin would be my first and my best brute (now in level 8). baby-rin would be in 2nd…. while the others(pretty_rin, crazy-rin, sebet_95) are sadly ignored… Fight my Brute!!!!!

3. American Idol Season 8

This season must be my most anticipated one in American Idol! I downloaded all the songs of Danny Gokey and Kris Allen and some of Matt Giraud’s. I liked the results since I don’t like Adam’s style of music at all! 

places I went:

1. PI 100 Banahaw Field Trip

- I crossed 3 caves… I jumped 10m high to a body of water… I sat at the roof of the jeepney… I walked a lot… I fell a lot of times too… I had scratches on my legs… I smiled at the cameras… I ate a lot… I slept less than 3 hours… I had fun…

2. Subic Highland

- This is the continuation of the SME camp where me and xinia came along to deploy our first drifter! Kuya Marky, Ate Grace, Ate Tin and Kuya Cris were also there! Although the drifter was not working properly (GPS and GSM module sucked big time!), we still had a lot of fun swimming, eating, and just hanging around the beach and in our room… How i wished i was able to play the swing..

3. Talent Show somewhere in Laguna

- Have no pics here… Enjoyed the show… A lot had amazing talents and I am happy to see them become new members of ERG… there was 40+ new mems!!! As usual, I struggled learning to swim…

4. SM Bowling

- with kat s, mic, manu, jet, aro, and aaron… my 2nd time to bowl(tenpin)… I got a nice score… Thanks Aaron for the treat!!!

5. ABE “where good friends dine”

- Bonding with my empcot buddies…  it’s an expensive Filipino resto with unlimited rice…

6. Somewhere in Alabang

- We had a Graduation Tribute for our co-scholars in YuSung! First time I experience eating many many Korean Food!!! Thanks mr. chung!!! and congrats to kuya gary, ate leian, ate megan, kuya roy, kuya joshua and kuya jason!

7. IECEP sem planning…

- at Roz’s…. I Love the food! Enjoyed it even if I had less than 3 hrs of sleep… go IECEP!!!

8. Somewhere in Katipunan to play RockBand and SM the Block to watch Angels and Demons

- Watched with Xin, Roz, Franz, Kuya Andrew, Kuya Earl, Kuya Robin and kuya PJ… First time to play RockBand… I don’t know the songs they were playing except for paramore but I just went with the flow… 

Some stuff that happened:

1.  Bought a new camera!!!

- a Canon A480 worth 8k inclusing the case, screen protector and memory card… The camera is user friendly and takes nice pics… It’s simple and is just what I need… Thanks alvin for helping me look for a cam!!!

2. Gossip Girl, Chuck and Heroes Finale

- Finished their season… I have nothing to watch anymore!!! I have to wait til August 31 for the GG’s 3rd season!!! waahhh.. one shout for blair and chuck!!!!  ^_^

3. Had a great PI100 class! Sir Siao is really nice… I learned a lot about Rizal… I did a lot of reflecting….I got a 1.25…

4. I watched a movie in the cinema thrice this summer: X-Men, Startrek (both with alvin) and Angels and Demons…. All 3 were great but decreased my money big time…

There you go, I had a crazy summer! That was my last summer as an undergraduate and I feel that I made the most of it… now I have to get ready for the big thing, THESIS year!!! God Bless to me and to my eee-mates!!!

I haven’t posted for awhile due to exposure of my blog… as of now it is set on private to cool down my peers until they eventually forget about it…. Hopefully I would move to the domain that alvin gave to me…

it’s the 2nd week of February….

Events pop up one after the other: ERG Cup, EEE days, UP Fair and Valentine’s Day…  

Exams come and go too: ECE151, CoE115, ECE113, ECE157 and ECE117….

And some other activities is bothering me: MADC!!!!

but the saddest part is I’m pretty empty… alvin is uber busy… but I can’t blame him, he is loaded every week!  

cute nagisa.. x(

I’m also depressed of the events that are turning out in Clannad After Story… Yes, Nagisa already died and I cried so so much…. Episode 16 and 17 was a heart breaker!!!!!!

Anyhoo, I hope this week will be okey… Pre-Valentine’s Syndrome is setting in me… Maybe because I’m scared of what might happen… although I shouldn’t expect much from his busy schedule, I can’t help myself…. How silly of me…

BTW. CoE115’s 3rd Machine Problem is communicating with the GSM Module via UART of the z8 Encore! uC…. The thought is very difficult to grasp…. I can’t seem to fit it in the code… But after this, we would have built a working cellphone without the games, video, camera and voice applications.. Haha!!!

Last week was Molave week.. sadly, I didn’t participate much except watching Mutya ng Molave (funny.. )

And last saturday it was Nikki’s Birthday treat in Eastwood…. I have to say, the food was very purifying… go Vietnamese food Spring Rolls and Yummy noodles! I also love the ice cream… i heart dairy queen!

CR picture!yummy food

with the jester

I’ve been busy playing Rain-Slick Precipice of Darkness Episode 2 (I downloaded it today and may finish it tomorrow )… I’ve put our CoE115 Machine Problem on hold since I think were ahead of many.. we’re done on the alphanumeric stage of the keypad.. numlock and capslock to go… IRC work is piling up which includes finishing our long overdue turbimeter and some Core work which involves testing the GPS module while travelling… Our first trial for the GPS test was a waste since we made a mistake in creating a new file.. aww shucks.. 1 hour of walking and testing gone gone gone.. haha.. I haven’t gone to the Jobfair because of lack of time and company… Hopefully tomorrow I can go for a visit… ece 151 exam on Jan26 which happens to be the submission of Coe115 mp2….1st week of February would be the coe115 exam… also, the ece117 project proposal(which can be equated to half a thesis in terms of load) is due last week of january… there… more strength to me and to my eee-mates! let’s go eee!

it’s been a long while since I last posted here(almost one month! *gasp*)… It seems I had no time to even think of blogging.. Yes, this semester has been busy. Busy because of the bondacious combination of IRC  and academic work!  Mid-November, Me, Jet and Xinia decided to become apprentices  under the Core Group (Monitoring the Environment of Coral Reefs)… The apprenticeship had more work than expected. The group needed to deploy 3 systems (one for each type of waterproof casing). One system composes of the surface logger(includes GSM module) and underwater Temperature anf Light Sensors (2 slaves and 1 master). We had 2 overnights in the lab to prepare the systems on time. Thankfully,  the deployment was a success. Yey! The training was very fulfilling since this was my first time to program the slimboard (of course, thanks to kuya gino for the sample code.. hehe.. ) .

As for the academic work, CoE115 Machine Problem was the main problem. We needed to make the hardware for the uC+debugger  and after which interface a 16×2 LCD. Fortunately, Alvin was my partner which made everything easier fo both of us. Apparently, we work very well together…

The working hardware video will soon be uploaded…

The Engineering Week happenings deserve another post next time.. I’m still waiting for the videos to arrive…

*it’s freezing cold here*

half the sembreak have passed and i’m still healing from all the stress the semester has given me…

this semester was a big fall for me and anticipating my grades every hour frustrates me… looking at the bright side: i survived… I am sure that I have passed my subjects… yey… anyway here’s a detailed report on my 1st semester this 4th year

The Good:

-IRC probationary member: more experience == extra work..a good trade off..

-I have subjects which involve practical stuff… eee100 and eee54… it develops the skill on hands-on work which is important for us future engineers…

-I appreciate my course more an am excited to be able to do more..

- the scholarship was a big help.. ^_^

The Bad

- very bad… as in totally… bad bad bad choice of GE subject… GE1earth trek, is not worth taking…

- EEE105 is not a fun subject… add a strict professor makes it a hard subject to pass… I read every page of the book but still wasn’t enough…

- EEE53 is an important subject but it was forgotten, ignored, left behind.. now, I have to pay the consequence

- my communications subject, digital and wireless, was okey until the last exams came… I totally blew it…:(

- all the deadlines and exams resulted my disoriented body clock. I sleep 4am and wake up 11.

- dormitory food does not satisfy me… this resulted to frequent orders at Aling Vicky’s, Jollibee, Mcdo, Greenwich, Pizza Hut…

- Alexan trips and midnight orders consumed my money the most. no savings for me..

my grades so far:

eee100 – 1.25

ge1 – 2.75

eee54 – 1.00

There.. i’m still hoping for a miracle to happen (CURVE.) but next semester is a brand new beginning… I will manage it…

I also hope CRS will have pity on me and enlist me to more subjects… I am not enlisted to 3 major subjects… how lucky am I…

Due to an unfortunate event that my phone rang during EEE105 class, I was forced to perform by our professor (it was rule set since beginning of the first semester)… It was crazy.. but i knew i can’t escape from it.  So instead of being the scared little girl that  am, I stood up and faced it… I figured that this will go no where if I continue to whine so I did what they wanted,… Besides, I am in good acquaintance (i think.. i hope..) with almost all of my classmates so performing won’t be so embarrassing and will be fully supported. It was just be considered as something fun stress free moment and not a superior humiliation explosion. Good thing I had my talent show[UP ERG] just this summer, so the feeling of presenting was still fresh… So I sang (it was hard singing at first but they started clapping and singing along.. ) they did enjoy it, and yes, I am now labeled as a performer of our batch.. geez.. what a name..  ”Erin at the beginning” that’s what they called it.. but what the hell.. they will forget it eventually… haha…

Thank you May, Xinia, Kat for writing down the lyrics instead of listening to the lecture..

Well, lessons learned…

1.Silent phone. period.

2.Don’t prolong the agony, relax and just give them what they want

3.Ma’am Joy is serious in her word

Thank you Alvin, for texting and missing me at the right moment.. ^_^ joke!!! Honestly, thanks for being the source of my confidence…

 
For our eee100 (Electronics Prototyping course), we were assigned to design an AC to DC supply with 3 outputs. 2 constant DC output voltages: 3.3V and 5V and 1 adjustable from 1.25V to 9V. It also includes 4 LED indicators for the 3 outputs and the ‘ON’ indicator (plugged in outlet). The design must be properly packaged with switches to control the state of the output.

After tons of researching, the circuit was actually quite simple… here’s how converting AC to DC works:

design

From the input of 220V AC, a transformer is needed to step down the AC voltage. The rating of the transformer is set to 12-0-12 so that it would be greater than the output voltages and have a current of 1 Ampere.

                The full wave rectifier and a capacitor across give smooth DC output. The capacitor value must be in hundreds micro range. We chose a value of 470uF. The bridge rectifier has a rating of 250V and 1Amp.

                To remove the ripples from the capacitor, the DC output should be passed to a Voltage Regulator. IC voltage regulators were used instead of other voltage regulator designs (zener regulator, etc) to ensure no loading effects and the voltage output is exact. LM317T was used for the adjustable voltage output and for the 3.3V output while LM7805 was used for the 5V output.

                For the LED indicators, they were connected parallel with the voltage regulators. Connected in series with the LED is a current limiting resistor with the typical value of 330Ω and 1/2watts.

                The output of the adjustable IC Voltage Regulator, LM317T.. to know everything about it, CLICK HERE. For the adjustable voltage output, R2 is set to be a variable resistor with a maximum value of 5kΩ. R1 is then computed to be equal to 830Ω (360Ω+470Ω). For the constant output voltage of 3.3V, R2 is computed to be 1.5kΩ and R1 to be 910Ω.

Here is our PCB Layout.. Take note that since there is no available package of LM317 in the library of eagle, we replaced it to 7805 but the connections are still of LM317.. same goes to the bridge rectifier, W045 is not available in eagle so we adjusted the connections of what was available.

But before fabricating the board, prototyping should be done first to ensure correct design

Once it works direct to fabricating, drilling, soldering and lastly, packaging.. ^_^

And here are the final results:

final

I would like to thank Triah for her patience and her OC-ness. I hope it is not a bother to post our project here..

Although the stickers were unprofessional, I felt designing it with a pinch of femininity was a must considering both of us were girls.

Oh happy that I have done the agonizing machine exercise on time!!!

Hopefully all Inputs would work (Please Do!!!)

We were asked to make a program that does Floating Point Addition and Subtraction. The Floating Point Numbers should be in IEEE Notation and Truncates using Rounding Off to the nearest even. The machine exercise actually have a procedure in our text book so it;s just a matter of how to translate the procedure into code.. ^_^… It’s super confusing!!! I reached 120+ lines! So basically there’s brute force that is involved in my code so it’s somehow inefficient.

Here’s a glimpse of my documentation

Flow of Code:

· Input to Data registers

· Extract Exponents -> E1 and E2 to D4 and D5

· Extract Mantissas – > M1 and M2 to D6 and D7

· Check if Inputs D1 and D2 is Not a Number or Infinity

· Determine real operation (operation x sign of operand2)

· Equate both exponents (lower exponent to higher and shift it’s mantissa). Set the exponent of result,D5, to higher exponent.

o involves Rounding Off (subroutine)

· Perform addition or subtraction

o In addition, get the sign of any operand

o In subtraction, if negative result, negate mantissa and let S=1 else retain and S=0. S->D2

· Normalization

o Normalization_Add – shift once to right to form 1.xxxx, involves rounding off

o Normalization_Subtract – shift to left until 1.xxxx is reached

· Build Final Answer in IEEE Floating Point notation using D5(exponent),D6(mantissa),D2(sign)

I’m really struggling dealing with life…

I’m pulled down by my blunders..

trying to make myself acceptable makes me less worthy to be..

Anyway, two things are in my mind right now… Redeem myself from a very low exam [eee105] and design the best ACtoDC supply [eee100]. I am enjoying the latter’s challenge since electronics is an art, and we don’t rush art, we make it a masterpiece…^_^[I'll be documenting it here after it's finish] Also, I’m bothered by a very difficult Machine Exercise on Floating Point Numbers. I hope i can finish it on time.. so far I have 50+ lines that doesn’t involve getting the sign and truncates using chopping… tsk.. tsk…  Assembly language is not the problem, but the analysis is just difficult to digest [I'm getting lost every time..]

More power to me..

*I can now text using the Benq M23 GSM Module , Documentation in the near future*

Congratulations to the USA Redeem Dream Team