I've been away for a weekend BBQ at Inti College Nilai. My friends managed to get accommodation for all of us at Block A so we won't need to drive back in the middle of the night. Reminds me of the time when I was still in college. Pictures from the BBQ will need to wait for Irene to send to me.

Clean sheets and blanket.

Air-con not really needed at night though.

Yes, it was a very nice "camp".

Exams will be next Monday so this coming weekend will be packed with studying. Something interesting that I've been learning about: the Inertia Navigation System (INS).

An INS in an aircraft looks like this.

To put it simply, an INS tells you where you are on the Earth. You just need to give the INS the starting location during initialization and after that, no matter where you bring it, it will know where it is. INS is used in aircraft, ships, submarines, missiles, rockets, space shuttles. It senses where it is going by using gyros and accelerometers. It's a very clever piece to technology. And unlike other systems in the aircraft, it does not require any inputs from other sensors. It is a self-contained unit.

5x7 dot matrix display. This is one of 6 displays that I will be building.

I've decided to resume work on my dot-matrix display after leaving it lying around for months. This will probably turn into a clock soon. Or a real-time tzywen.com hit counter on my desk! But most probably a clock.

Note to self: When using a 16F88, remember to disable "low voltage programming" (LVP) if you want to use RB3 as an I/O pin and also set "/MCLR Input Enabled" to disabled to use /MCLR as an input pin.