MP3Car.com - View Single Post - NEC 8.4" Transflective Solution

thermoptic · 02-19-2008, 03:14 AM

Now that things are winding down on this front, I wanted to step back summarize the BOM. I also wanted to compare cost-to-date against my $800 budget cap.

Code:

===================================================  ==========  ======
  Description                                         Supplier    Cost
===================================================  ==========  ======

NEC ST-NLT NL8060BC21-03 LCD Panel                    Future    $378.00
  (Transflective, 800x600, 600cd/2, 600:1, 16.8M)
NEC 84PW041 Inverter                                  Future    $ 35.00
Digital View ALR-1400 VGA-to-LVDS (4171000XX-3)       Mouser    $134.00
Digital View LVDS Cable (426493000-3)                 Mouser    $ 40.00
Digital View Power Cable (426013800-3)                Mouser    $ 13.00
Digital View Inverter Cable (4260583-00)              Mouser    $  9.00
Digital View RS-232 Control Cable (4260902-00)        Mouser    $ 11.00
8.4” IRTOUCH E-08-U-BC IR Touchscreen w/ 3M AR-MR200  MCT       $185.00
Aluminum Hobby Enclosure (10” x 14”)                  Fry’s     $ 25.00 
                                                                -------
                                                                $830.00

Not so bad, right? Well, the astute reader will realize that I am wearing my Enron accounting hat.

Code:

Unused Parts/Materials
Custom Cabling Assembly (now cannibalized)            MCT       $ 80.00
LVDS-07G (awaiting rocket launch)                     Mini-Box  $ 33.00
                                                                -------
                                                                $113.00

So, I have spent about $945 total. Let's not get into tax and shipping, it's not that much.

Note that Digikey sells the IRTOUCH TS and the 3M AR-MR200 film. You will need to find an off-the-shelf cable assembly for the NEC 84PW041, or crimp your own. Whenever possible, I leverage a machine assembled wiring assembly and splice into my application.

I still need to remove the potentiometer and wire in the inverter brightness controls to the ALR-1400. This should be the last bit of tweaking, other than the mounting hardware. I will try to use a small USB hub to consolidate the IRTOUCH and a USB-to-RS-232 adapter into a single USB line that I run to the dash.

Given my display budget overrun, I will definitely be doing my own fab work on the dash. If I draft the measurements for the aluminum plate on the PC, I can print out a drill template at actual size and avoid the parallax errors from marking the holes with a mechanical pencil.

I will stop posting to the IRTOUCH thread and combine with this thread. Hopefully I will get some pictures and video of this setup with the IRTOUCH in direct sunlight this weekend. Note I have resumed my dash fabrication journey here:
http://www.mp3car.com/vbulletin/fabr...brication.html

02-19-2008, 03:14 AM	#79
thermoptic Constant Bitrate Join Date: Aug 2007 Posts: 116	Now that things are winding down on this front, I wanted to step back summarize the BOM. I also wanted to compare cost-to-date against my $800 budget cap. Code: =================================================== ========== ====== Description Supplier Cost =================================================== ========== ====== NEC ST-NLT NL8060BC21-03 LCD Panel Future $378.00 (Transflective, 800x600, 600cd/2, 600:1, 16.8M) NEC 84PW041 Inverter Future $ 35.00 Digital View ALR-1400 VGA-to-LVDS (4171000XX-3) Mouser $134.00 Digital View LVDS Cable (426493000-3) Mouser $ 40.00 Digital View Power Cable (426013800-3) Mouser $ 13.00 Digital View Inverter Cable (4260583-00) Mouser $ 9.00 Digital View RS-232 Control Cable (4260902-00) Mouser $ 11.00 8.4” IRTOUCH E-08-U-BC IR Touchscreen w/ 3M AR-MR200 MCT $185.00 Aluminum Hobby Enclosure (10” x 14”) Fry’s $ 25.00 ------- $830.00 Not so bad, right? Well, the astute reader will realize that I am wearing my Enron accounting hat. Code: Unused Parts/Materials Custom Cabling Assembly (now cannibalized) MCT $ 80.00 LVDS-07G (awaiting rocket launch) Mini-Box $ 33.00 ------- $113.00 So, I have spent about $945 total. Let's not get into tax and shipping, it's not that much. Note that Digikey sells the IRTOUCH TS and the 3M AR-MR200 film. You will need to find an off-the-shelf cable assembly for the NEC 84PW041, or crimp your own. Whenever possible, I leverage a machine assembled wiring assembly and splice into my application. I still need to remove the potentiometer and wire in the inverter brightness controls to the ALR-1400. This should be the last bit of tweaking, other than the mounting hardware. I will try to use a small USB hub to consolidate the IRTOUCH and a USB-to-RS-232 adapter into a single USB line that I run to the dash. Given my display budget overrun, I will definitely be doing my own fab work on the dash. If I draft the measurements for the aluminum plate on the PC, I can print out a drill template at actual size and avoid the parallax errors from marking the holes with a mechanical pencil. I will stop posting to the IRTOUCH thread and combine with this thread. Hopefully I will get some pictures and video of this setup with the IRTOUCH in direct sunlight this weekend. Note I have resumed my dash fabrication journey here: http://www.mp3car.com/vbulletin/fabr...brication.html