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Messages - salamat

Pages: 1
1
General Hardware Talk / Re: red laser and I2C bus (done)
« on: February 07, 2009, 07:23:50 PM »
hey were starting to connect the pic and the microcontroller to the pc the problem now is programming the pic. since most of you guys used arduino Micro's the initialization codes we would be using is different from your coding right?

JCL posted a sample initialization code in his blog but we think he left some parts out cause we suspect there are some missing lines.

anyone here knows PIC programming?

2
General Software Talk / about controlling the cursor
« on: February 07, 2009, 04:15:58 AM »

hey i was able to remove the pixart camera from the wiimote and trying to connect it to the PC via usb through a PIC microcontroller (PIC18f4550).

i would like it to act as a sensor similar to the whiteboard project but this would be more fast. cause in the bluetooth communication it only uses 100khz while in the usb and i2c medium it would reach up 400khz.

the problem is i need some help on programing it to act as a mouse

the PIC microcontroller already has premade USB HID firmwares but i still cant fully understand on how to make it interact with the camera.

3
General Discussion / Re: Hardwiring the PixArt Camera
« on: February 04, 2009, 07:59:22 AM »
Hi thanks for the link

        i would be testing my circuit tom.

and i would be hoping to post my findings by next week so.

thank you again for your help

4
General Hardware Talk / Re: red laser and I2C bus (done)
« on: January 31, 2009, 08:38:51 AM »
hey another problem here

can anyone clarify to me if your connecting the pic (micro controller)  to the camera via i2c would the voltage in the i2c affect the communication?

because in kako's intefacing using arduino kako used a I2C voltage conversion circuit using LTC4301L while in JCL's blog he just said to give the camera 3.3 volts and directly connect it to the SDA and SLA lines + the pull up resistors.

or to simplify my question is the camera 5volts tolerant?

thanks .. :)

5
General Hardware Talk / Re: red laser and I2C bus (done)
« on: January 31, 2009, 05:24:40 AM »
no sorry but i just removed the camera from an existing wiimote


6
General Hardware Talk / Re: red laser and I2C bus (done)
« on: January 29, 2009, 08:16:11 PM »
thanks jojo


 we had successfully loaded our PIC18f4550 with the bootloader and we would be continuing our experiment with the pixart camera

i would post my progress or queries here.

thanks again



here's a picture of our pixart camera

7
General Hardware Talk / Re: red laser and I2C bus (done)
« on: January 22, 2009, 05:07:20 PM »
i'm trying to do this using PIC18f4550 could anyone help me i'm a bit confused in the i2c and initialization of the pixart camera.

johnny lee also used the same PIC but i'm using  a 40 pin instead of 44 pin PIC.

the 1st step is to initialize the camera right? but how??? via I2C?

8
General Discussion / Re: Hardwiring the PixArt Camera
« on: January 11, 2009, 10:06:42 PM »
ok i'll post what ever my findings would be ...

can you direct me to jcl cant seem to find his e-mail address so i can ask for a copy of the circuit he made thnx

i'll be uploading my findings as soon as i've confirmed the schematics of the circuit.


9
General Discussion / Re: Hardwiring the PixArt Camera
« on: January 10, 2009, 07:00:52 PM »
hmm the circuit i made was actually based on johnny lee's direct usage of the camera but unfortunately he didnt post the schematic in that blog but it was the same pic (actually of different packaging) but still the same PIC18F4550

but i'm note sure if the programming the camera via i2c is the same connection i was wondering if you guys could help me thnxx

somebody here already connected the pixart camera but using a different module i'm using PIC microcontroller to also enhance my knowledge on PIC that's why i want to try this

Thank you for your help

----for those who can give me a better schematic feel free to send me a message

thnx again

10
General Discussion / Re: I2C on Wiimote?
« on: January 10, 2009, 05:36:04 AM »
hi though i'm a bit late at the topic could anyone correct this circuit i made thnxx

 i'm interested on doing this but i'm not sure if the circuit i plan to do would work it's base on johnny lee's blog. but he didnt really show how it was connected and he used a different package IC but it's still the same

here's the circuit i plan to connect



hope you guys would comment on this thnx

11
General Discussion / Re: Hardwiring the PixArt Camera
« on: January 10, 2009, 05:27:06 AM »
Hi i'm interested on doing this but i'm not sure if the circuit i plan to do would work it's base on johnny lee's blog. but he didnt really show how it was connected and he used a different package IC but it's still the same

here's the circuit i plan to connect



hope you guys would comment on this thnx


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