Nice!! On Mon, Feb 20, 2023 at 5:38 PM Peter Noeth <[email protected]> wrote:
> I recently finished my T102 "Nite Lite" v2 and am attaching pictures, > which I hope make it through to the list. > > I originally attached a "gooseneck" type book light I got from Barnes & > Noble to an empty DB-25 connector and shell years ago by taking the "spring > clamp / battery holder" off the light and placing the batteries inside the > DB-25 shell. After responding to SteveA's recent query about a reading > light solution, I decided to make a more refined solution that is powered > by the computer itself. > > I decided to keep using the RS-232 port for connection as my gooseneck is > somewhat too short to use the Barcode Port. The light would not reach to > the midpoint of the display for an even illumination. > > I jumpered +5v from the power supply to unused pin 14 (secondary Tx, an > output signal) on the RS-232 connector and take ground thru pin 7. The > light draws ~25mA as opposed to its normal ~33mA from a +6v battery (2 2032 > coin cells in series). It lights up the display and keyboard nicely, but is > not *really* bright. I guess these book lights are not supposed to be > real bright when used in a pitch dark room so as not to blind the reader. > > Haven't used it enough to know how much it would shorten the normal 20 > hour AA battery life, but since I usually use an external 6v lantern > battery, it probably won't make much difference to my "use model" anyway. > > Regards, > > PeterN >
