How To Make A Propeller Clock

23 Comments »

Once upon a time, lifes goes on as usual, boring. Until one day my friend showing me a weird clock on youtube. i said “wow, that was awesome!”, “how it works?”, “i should make one!”. Basically, i have experienced on electronic DIY stuffs. i started to figure out on how to make it, lots of information found. so basicaly, propeller clock based on POV (Persistence of vision)

http://en.wikipedia.org/wiki/Persistence_of_vision

The clock’s graph formed by cheating human eyes, one array of leds burst on constant interval/delay in one motor rotation, continuously (in this case ┬ádivided to 360 degree in one rotation, can be more for higher resolution).

After i’ve found, understand, (and yet still confused on how it works :P). i started making prototypes with existing MCU module (atmega8535), wired to array of 8 leds. it works, and not good!! it’s too heavy, no index reference, the text is very unstable. i need to design new board which is lighter and throw out all unnecessary components. there are two web site that i’m using as references, when building this clock.

http://www.microsyl.com/index.php/2010/03/18/propeller-clock/

i used the codes from there with lots of modification, original code is writen using ICCAVR, i converted it to AVR Studio.

http://www.oocities.org/tjacodesign/propclock/propclock.html

i used his isolated power supply, to power up the propeller clock module.

For remote control, it was stolen from here: :D

http://www.dharmanitech.com/2009/01/ir-remote-controlled-car-pwm-motor.html

picture

Read the rest of this entry »

Share

Window XP HOME and ipv6

No Comments »

Step 1:
register to Freenet6

Step 2:
Download Gateway6 client
http://go6.net/4105/download.asp

Step 3:
install, configure (put user/password) and you’re ready to go!

Step 4:
Test it

C:\Documents and Settings\harry>ping6 ipv6.google.com

Pinging ipv6.l.google.com [2001:4860:c004::68]
from 2001:5c0:1000:b::2d73 with 32 bytes of data:

Reply from 2001:4860:c004::68: bytes=32 time=659ms
Reply from 2001:4860:c004::68: bytes=32 time=660ms
Reply from 2001:4860:c004::68: bytes=32 time=699ms
Reply from 2001:4860:c004::68: bytes=32 time=660ms

Ping statistics for 2001:4860:c004::68:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 659ms, Maximum = 699ms, Average = 669ms

That’s all

Share
keep looking »