How to make a professional looking and fault tolerant Arduino controlled light?
i've gotten arduino's, , wanted make lights in house controlled them (so can respond motion or timers, or whatever). however, i'd require solution meet following conditions:
my ideal solution following. have normal looking (and purely mechanical) light switch has on/off/auto states (auto centered). when switch in on or off position, light on or off accordingly. when it's in auto, state determined state of relay controlled arduino. unfortunately, haven't been able find commercially available switch this, , without 1 don't know way create set-up.
every other solution can think of less good. here two:
1. have 2 normal light switches: if first 1 on light controlled arduino; otherwise light controlled second switch. typically you'd leave first switch on, put light in "auto" mode. isn't great solution though since need 2 switches every light, , furthermore, control light manually potentially require flipping 2 switches.
2. have 1 normal on/off light switch , wire arduino-controlled relay in spdt fashion. problem here switch wouldn't override relay, since changing state of either toggle light. example, if relay off , turned physical switch on, light come on; if minute later arduino turned relay on light turn off, despite physical switch being set on position.
there hundreds of articles , videos giving tutorials on arduino controlled lights, haven't seen meet conditions give. it's bit frustrating, since feel these conditions necessary solution i'd want in home. i'd love hear if here has thoughts. thanks!
- i should able turn on or off light using physical switch, independent of state arduino puts light in.
- the physical switch should work if arduino crashes/malfunctions/whatever.
- the final setup should professional , function intuitively.
my ideal solution following. have normal looking (and purely mechanical) light switch has on/off/auto states (auto centered). when switch in on or off position, light on or off accordingly. when it's in auto, state determined state of relay controlled arduino. unfortunately, haven't been able find commercially available switch this, , without 1 don't know way create set-up.
every other solution can think of less good. here two:
1. have 2 normal light switches: if first 1 on light controlled arduino; otherwise light controlled second switch. typically you'd leave first switch on, put light in "auto" mode. isn't great solution though since need 2 switches every light, , furthermore, control light manually potentially require flipping 2 switches.
2. have 1 normal on/off light switch , wire arduino-controlled relay in spdt fashion. problem here switch wouldn't override relay, since changing state of either toggle light. example, if relay off , turned physical switch on, light come on; if minute later arduino turned relay on light turn off, despite physical switch being set on position.
there hundreds of articles , videos giving tutorials on arduino controlled lights, haven't seen meet conditions give. it's bit frustrating, since feel these conditions necessary solution i'd want in home. i'd love hear if here has thoughts. thanks!
why not use 2 light switch circuit
http://www.lightwiring.co.uk/two-way-switching-3-wire-system-new-harmonised-cable-colours/
one switch normal 2 way switch , other relay controlled arduino
1. if light off either switch on/off
2. if arduino crashes normal switch still work
3. if time arduino switch light on detect if on , if nothing (similarly off)
initially build using led
if dealing mains voltages use opto coupled relays , sensors
http://www.lightwiring.co.uk/two-way-switching-3-wire-system-new-harmonised-cable-colours/
one switch normal 2 way switch , other relay controlled arduino
1. if light off either switch on/off
2. if arduino crashes normal switch still work
3. if time arduino switch light on detect if on , if nothing (similarly off)
initially build using led
if dealing mains voltages use opto coupled relays , sensors
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