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Nice work on the furnace control, just for those still not disillusioned with LEDs have a look at http://www.onsemi.com/pub_link/Colla...I45020JZ-D.PDF http://www.onsemi.com/pub_link/Colla...SI45030A-D.PDF and there are versions of this with different current and voltages
I'm still trying to work out how to use a illuminated led as a switch if any one has done this let me know
What ? do you mean with an LDR or something ?Quote:
Originally Posted by Binary
I think you might mean as a touch switch - I presume you could use a metal cased led on an insulating panel as the sensor on a touch switch circuit
https://www.google.co.uk/search?q=to...55%3B761%3B504
Pick one !
no, not a metal can version a basic 5mm LED .....my thoughts the LED stays on, capacitance on one of the LED pins is the switch so just touch the resin or get close and the switch action operates the led to turn off or any output can be turned off
You won't get enough pick up from the LED lead to give you a reliable operation, if you ramp up the sensitivity you will get switching from any electrical noise, so again it won't be reliable.
I don't want to mislead you this has been done, how its been done and what with I'm not sure
I was going to use an Arduino which will easily give a output for a LED it can also be used as a sensor
the method in combining both switch with LED would make or break it.
this is for only a prototype, then code for 8052