Friday, August 20, 2010

Conversion Details and Final Specs

The base unit is an Acer one AO531h netbook with WWAN modem and the 6 cell extended battery. This is the same unit sold with a data contract at AT&T although this particular unit was a refurb that most likely only had a bad webcam which is why they were returned to AT&T and Acer. So the basic specs are the same except for a few subtractions and additions.

Items Removed:

1. Webcam assembly
2. Keyboard (Which can be replaced if needed)
3.  Touchpad and controller (Like the keyboard it's not accessible in normal use)
4. VGA connector (Replaced with an SMA jack)
5. Ethernet connector  (Replaced with SMA jack

Items added:

1. Touchscreen Kit
2. Bluetooth transceiver (USB Bluetooth dongle stripped and mounted in the provided mount and hardwired to the Bluetooth Port on the motherboard)
3. Wireless Mouse receiver (Another stripped out USB dongle mounted where the touchpad controller used to be)
4. Antenna Jack (SMA) for GPS antennas
5. Antenna Jack (SMA) for Cellular WWAN modem
6. Memory upgraded to 2 GB
7. Windows 7 OS (Without a keyboard with the hardwired Fn key there was no way to control the backlight in XP even with the Tablet PC extensions so Win7 was my best option and properly set up seems just as fast as XP )
8. Power supply circuit modified to run off 12-13.8 VDC **without** battery installed, no noisy auto adapter needed lowering average power consumption to 10 watts or less
9. Four switches added to the front bezel, Power, Bluetooth, WWAN, WLAN wired in parallel with the existing switches which are all still functional

Outboard items mainly wired into my boat:

1. USB Hub in console
2. Rubber industrial grade USB keyboard in console
3. Serial to USB converter in console for serial NMEA depth output of the Garmin 300C fishfinder
4. GPS antenna(s)
5. Cellular 1900MHz Edge band antenna(s)
6 USB port mount in front of console
7. Tough Tray II and Ram Mount mounting hardware
8. PC Shade hood for better daylight visability of the LCD screen
9. Bluetooth headset for Voice Control

GPS related software:

1. Ozi Explorer v 3.95.5k
2. Map Merge for OziExplorer
3. Depths2Ozi
4. Fugawi Marine ENC v 4.5
5. Dr Depth v4.5

Next up some pictures of the unit in the boat and the boat electrical setup


Kim - GPS said...

Nice! Happy holidays to everyone!

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