If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
DIGITAL TIMER KITS - $28
A digital timer for $28!
What's the catch: you have to put it together yourself and you have to supply a few items you most likely already have. Timer features: o 2 digit .57" LED display o 0.1 to 990 second (16 1/2 minutes) timing range o Real keyboard switches, unlike the *&#?! switches on some $200 timers I know of o 10A relay contacts, rated for 300W incandescent loads. Arc suppression makes it suitable for use with cold light heads. o Small size to Free up valuable space on your work area. The timer can be constructed in two units: a small, light 3x5x1 inch control box and a separate under-counter box with the relay, power supply and plugs. No more power cords running around your work area. The index card sized control box can even be wall mounted with Velcro. The kit contains all the electronic parts, programmed uP, instructions and 2x and 1x artwork for the DIY PC crowd. This kit is designed to answer the question "How economically can one obtain a digital timer?" To that end, you supply the following parts that most likely already have in your junk box (or that you can buy at Radio Shack, if you are junk poor): o A box o A wall-wart power supply: 5V DC or anything above 7.5V AC/DC o A circuit board: 2x4 inch printed circuit or wire-wrapped perf-board o A duplex power outlet, line cord, on-off switch o Wire, screws, solder .... I am doing it this way because I can't see selling you things that you likely already have. The electronics kit costs $28 + postage A printed circuit board with additional connectors, wiring harness and a machined socket for uP: $12 (+ postage if ordered separately) Postage in the US is $2.00. Please email me for more details. Thank you very much for your time... -- Nicholas O. Lindan, Cleveland, Ohio Consulting Engineer: Electronics; Informatics; Photonics. |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
How to Buy a Digital Camera | [email protected] | Digital Photography | 6 | January 18th 05 10:01 PM |
How should I permanently store digital photographs? | Bill Hilton | Digital Photography | 182 | January 3rd 05 03:21 PM |
NYT article - GPS tagging of digital photos | Alan Browne | Digital Photography | 4 | December 22nd 04 07:36 AM |
Digital Imaging vs. (Digital and Film) Photography | Bob Monaghan | Medium Format Photography Equipment | 9 | June 19th 04 05:48 PM |
Which is better? digital cameras or older crappy cameras thatuse film? | Michael Weinstein, M.D. | In The Darkroom | 13 | January 24th 04 09:51 PM |