T&L Publications

Greetings Mrai, Anyone know why there is both a Sentbox and an Outbox for PM's in the messages window? I don't know why, but I do know how. The outbox is a place to hold messages that have been sent but not yet viewed by the addressee. Once the addressee opens their inbox and the message (they don't...

Greetings Ralph,

Ralph Cameron wrote:2x16 dot matrix LCD display and have been trying to find a data sheet. Any help would be appreciated.

I've been using this LCD manual as it covers
the 'generic' LCD modules (i.e. those based
on the Hitachi 44780 engine).

Comments Welcome!

Greetings (No Name Supplied),

jaem wrote:Sorry for the long post. I'll call it "comprehensive", so it sounds good ;)

Did you have a chance to read the article that I cited?
Was it helpful?

Comments Welcome!

Greetings (No Name supplied), What is the easier method of control (IR/RF)? What microcontroller is the best for that method? RF is much easier as IR signals are very directional, something you may have noticed with an IR remote for your TV, etc. RF modules make the hardware very easy. It's just a m...

Greetings David H., I was under the impression that's wire wrap wire. Maybe they just use the wire and don't use the tool? Hopefully somebody on here who's done boards like these will see this and tell me what the heck they're doing. I could have sworn it was wire wrapping. As others have said the w...

If you're serious about this, you might want to look into what they use to control motors in laser show machines (the name escapes me), but again, that's getting pretty complicated, and I will leave any elaboration on that topic to people who know more about it than I. Greetings jaem, Perhaps you a...

I'm investigating using ultra capcitors to power a bot. Does anyone have any information on the sensitivity of ultra capacitors to vibration? How does it affect the lifetime? Greetings (No Name Supplied), I can't help you with a vibration question. Capacitors store electricity as a charge, while ba...

Greetings (No Name Supplied), I found a list of several companies that manufacture or export battery powered braces that contain a flexible heating element. Usually, three "AA" batteries are contained in a pouch stitched to the brace. My first thought was how much energy can you get from t...

Greetings Zach, That's interesting, what advantages would MOSFets have over relays? I would think that if MOSFets were better suited for the job, then cars would use them instead of relays. Relays are mechanical, and prone to wear, vibration, etc. The auto industry has such a large volume that their...

i would love to see radio shack carry more products like the schmartboard, basic stamps, motor speed controllers etc. I mean the rush was one a few years ago for building combat robots, you would think radio shack would have jumped on this, as thousands of $200.00+ speed controllers and servo motor...

Greetings Abu, Can anyone explain how those led flashers on mobile phones work? I'm on about those sticky backed types you glue onto the back of the mobile so when it rings the leds flash. The mobile phone transmits a data burst before it rings (so that the cell knows the phone has been located). Th...

Greetings veradusit, Here is my question, if I grab the live wire from two outlets that are on separate posts from the panel can I pair those two together to get single phase 220v (or 240v to be technical) will that work if they are non connected breakers? Yes, but its not good practice. If for some...

Greetings veradusit, The tag reads exactly as written 208/220VAC 60Hz 1675W. Not the suspected 50Hz. Okay, so you have the 'export' model for a commercial kitchen (with access to two phase 208V OR 220V service). In fact in my laundry room I had an outlet faceplate that would have accommodated the pl...

I purchased a European espresso maker. The inside specs read as follows: 208/220VAC 60Hz 1675W Greetings veradusit, Quite possibly your coffee maker was built for worldwide sales. Perhaps the maker expected it to run from single-phase 220VAC in Europe, or from two phases of a USA/Canada power circu...

Greetings Zach, I thought of that, but I would like to be able to use these lights with the ignition and headlights off. I could run the LEDs through the dimmer anyway, but that would defeat the purpose (the lights could be on and the LEDs off, and the purpose of the LEDs is to keep me from draining...