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Projects pages are back up
The pages seemed to be down recently due to the fact that my host, Dreamhost, might have moved me to a new server. All my other domains seemed to be fine, so overall it was a smooth switch from kitkat to islander. 
All services are back. Enjoy~
Subscribe to the comments for this postSo… what’s wrong?
A well due update on the project.
Since I am too busy with FYP recently i have not had much time to concentrate on my final assignment.
So far done:
- Violin with embedded wiimote, LEDs, amplifier and microphone.
- Arduino with connection to LED and wiimote
So far failed:
- Communication between wiimote and arduino
- software
how to fix the failures:
- communication:
I changed my method of connection and decided to use a more “analog” aproach. Instead of using the twi provided by the IC2 protocol of the wiimote, I will simply use commands to turn the LEDs of the wiimote on and off. This way i will send code to the arduino using a home-made protocol that goes as follow.
It will be a cyclic protocol based on 300ms delays between data transfers, a “begin” tag for syncronisation and a “data” tag on each 3bit packets defining if we are in the middle of a sequence or not.
Since i have 8 leds to turn on and off I will define the data as follows:
111 - begin
011 - turn on LED 1 and 2
011 - turn on LED 3 and 4
011 - turn on LED 5 and 6
011 - turn on LED 7 and 8
the first bit set to high will be only for the begin packet
the first bit set to low will be for all other packets
the second and third bits will be used for data. high turning on… low turning off.
trying this afternoon.
- software
well… gotta get started some day… i guess…
will be done by the presentation date.
RFID Phidget arrived
The RFID Phidget arrived by the mail yesterday (only 2 days after purchase) and I had to walk to the post office to pick it up since I wasn’t there when they delivered.
The module is what it said it was and seems quite easy of use.
Sadly, it does not work with the student ID’s and the Octopus card 
For that i would need a reader that works at 13.56Mhz and the one I got is 125Khz… shoot…. The reader that i now want is available is singapore and Japan. I just need to get it shipped to HK… but it might cost a lot… It would be the FeLiCa from Sony