Page 64 of 114 FirstFirst ... 14545556575859606162636465666768697071727374 ... LastLast
Results 631 to 640 of 1134

Thread: Custom USB tyre pressure monitoring interface

  1. #631
    Newbie wiggy's Avatar
    Join Date
    Apr 2007
    Posts
    10
    Have tryed both of these ..centrafuse and RRTMS Config out of the RR file

    Also using TPMS DOCTOR to do a master reset..although sometimes it takes 2 or 3 goes to clear the pic !!

  2. #632
    Newbie
    Join Date
    Jul 2007
    Posts
    36
    Quote Originally Posted by Robby BMW;
    The transistor has the dual function to invert the signal and bring it to 5V, as the output from the receiver is about 3.8V.
    Robby, Thanks for the answer :-) In case of WAECO the output from the receiver is also about 3-4V but my micro controller (Atmel MEGA) recognizes 0 and 1 in the input. Does the PICs can't recognize 1 within 3.8V in the input? (I mean, might be I can put away this part from my realization).

  3. #633
    Maximum Bitrate Robby BMW's Avatar
    Join Date
    Aug 2005
    Location
    Italy
    Posts
    558
    Quote Originally Posted by wiggy View Post
    Have tryed both of these ..centrafuse and RRTMS Config out of the RR file

    Also using TPMS DOCTOR to do a master reset..although sometimes it takes 2 or 3 goes to clear the pic !!
    Ok, try this:
    Do a master reset to the PIC with TPMS DOCTOR, then perform the learnig procedure trough RRTMS Config taking care to place the receiver at least 1 meter from the tyres and to wait at least 1minute between a tire and the other.
    _______________________________________
    Car installation 95% [■■■■■■■■■■■■■■■■■■■]
    Current project: Parking sensor USB interface

  4. #634
    Maximum Bitrate Robby BMW's Avatar
    Join Date
    Aug 2005
    Location
    Italy
    Posts
    558
    Quote Originally Posted by a__l View Post
    Robby, Thanks for the answer :-) In case of WAECO the output from the receiver is also about 3-4V but my micro controller (Atmel MEGA) recognizes 0 and 1 in the input. Does the PICs can't recognize 1 within 3.8V in the input? (I mean, might be I can put away this part from my realization).
    Maybe, but for safety I put the transistor which also operates as a sort of Schmitt trigger.
    _______________________________________
    Car installation 95% [■■■■■■■■■■■■■■■■■■■]
    Current project: Parking sensor USB interface

  5. #635
    Newbie
    Join Date
    Jul 2007
    Posts
    36
    Quote Originally Posted by Robby BMW View Post
    Maybe, but for safety I put the transistor which also operates as a sort of Schmitt trigger.
    For safety just to make sure that the voltage will not more that 5V (safe for PIC input)? Is it correct?

  6. #636
    Maximum Bitrate Robby BMW's Avatar
    Join Date
    Aug 2005
    Location
    Italy
    Posts
    558
    Not exactly, since the receiver is powered by the same voltage of the PIC (5V), it is impossible to get an output level over 5V.
    _______________________________________
    Car installation 95% [■■■■■■■■■■■■■■■■■■■]
    Current project: Parking sensor USB interface

  7. #637
    Newbie
    Join Date
    Jul 2007
    Posts
    36
    Quote Originally Posted by Robby BMW View Post
    Not exactly, since the receiver is powered by the same voltage of the PIC (5V), it is impossible to get an output level over 5V.
    Yes... agree :-) (my assumption was wrong) .... nevertheless what kind of "safety" did you mean?

    (Managed to get data from WAECO system .... thanks for your answers)

  8. #638
    Maximum Bitrate Robby BMW's Avatar
    Join Date
    Aug 2005
    Location
    Italy
    Posts
    558
    I should have had to say "just to be sure"... just to be sure to get a good signal.
    My bad... in Italian "for safety" can also mean "just to be sure".
    _______________________________________
    Car installation 95% [■■■■■■■■■■■■■■■■■■■]
    Current project: Parking sensor USB interface

  9. #639
    The Last Good Gremlin GizmoQ's Avatar
    Join Date
    Nov 2004
    Location
    St Louis
    Posts
    2,347
    Quote Originally Posted by LYHTSPD View Post
    I do not have any of the 3rd Eye kits left, but I do have several of the USB converters left. They are complete with Robby's PIC, case, and USB cable. PM me if you are interested.
    Thanks to LYHTSPD, RRFusion and RRTMS, I now have my fusion brain/TMS skin fully operational. Now I just need to buy and install the sensors and receiver.

    HARDWARE: Fujitsu Stylistic ST5111w/WiFi and dock, internal Hitachi 500G HD, external 1TB HD, Sierra Wireless Aircard 550, DVD-RW, BoomzBox HD radio, XM Commander, Delorme GPS, Saitek X-52 Pro joystick, BluSoleil Bluetooth, TPMS, FB, Elm327

  10. #640
    Constant Bitrate goosey2099's Avatar
    Join Date
    Dec 2004
    Location
    Staten Island, NY
    Posts
    222
    I'm having a littlebit of an issue here. It seems that if i place the receiver within that 1m from the tire then the RRTMS Config learns the sensor. But if i keep the receiver in the middle of the car I have no connection to any tire. This is really starting to drive me insane as it allmost looks like there is not enough power comming into the receiver. Also I have this plugged into a 8port usb hub and all 8 ports are being used for something. Can anyone shed some light on this issue?

Similar Threads

  1. Core Duo / Core 2 Duo Mini-ITX boards
    By RedGTiVR6 in forum General Hardware Discussion
    Replies: 153
    Last Post: 10-03-2010, 10:30 PM
  2. USB self powered hub, which one
    By htsource in forum General Hardware Discussion
    Replies: 5
    Last Post: 07-26-2007, 03:31 PM
  3. Will this layout with a remote USB hub work?
    By NoPistonPC in forum General Hardware Discussion
    Replies: 14
    Last Post: 08-21-2005, 03:24 PM
  4. USB Earthmate - patch for gpsd support
    By dignome in forum GPS
    Replies: 4
    Last Post: 04-05-2005, 10:44 AM
  5. Replies: 4
    Last Post: 04-06-2004, 09:52 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •