You have to get a fine balance and just on its own isnt enough to press it. I suppose that depends on the material you choose for the switch thou.
Cheers for that dude. As said above. you powering from PSU or something else? my initial idea would be to power from something like USB or perhaps even a 9v battery for portability
Im currently powering it from a Plug-in-the-wall power pack thingy, you know the type. However USB should be ok, you'll just have to connect the LED's in parallel - USB only being 5V. Also check the current rating for the USB port you plan on running then from. I decided against batteries because of a size thing. To get a decent mAH i would have had to made a huge coaster with a nice battery compartment
You added a whole new dimension to my morning cup'o'coffee. Now I feel good and the coffee looks good.
i had one of those credit card torch things (but i lost it ) it ran off 3 little button/watch batteries and had 2 super bright led's in it
how many leds are you using? I can only spot one? . Would i be able to get some copper tape off you? I dont think i can solder to alu tape?
No, it's such a waste just sending them back (if they get their target number). Make them coasters! It would be cool if you could power the LED's from the heat of the cup (wouldn't work for cold beverages though). Peltier effect is what it's called I believe.
Great job Hippo! This is my first post here, but I wanted to let you know (all of you here) how much I've been influenced by the guides and advice I have seen on this forum. I have started my own mod and will post pictures of it when its done. Keeping coming up with these fantastic ideas. It keeps me busy in my old age.
zap in order to make it a challenge you are required to add thermal monitoring. you need to knw if your prefferred bevvy is at the right temperature... j/k Yeh a pair of cr2023 batteries (the number may be off, thw kind that your motherboard has if it is post 1998) should power four leds... and would not raise the size or circut requirement much.
you know, an rgb led with that, the colder it is, the bluer it is, the hotter it is, the redder, would be kind of cool
I actually thought about using a thermistor in mine too. I was thinking more like when it's warm (or warm-ish) it gets red, and when it's cold it gets blue. I just need a circuit that can switch between two LED colors using the varying resistance of the thermistor.
