Hi All,
I have well and truly wracked my brains with this one. Maybe somebody here might be able to help!
I have attached an image to this post for reference if it is needed.
I must first state that I am somewhat of a newbie at electronics - especially when logic controllers are thrown into the mix!
The setup:
In essence I would like to rig up a 'simple' system using LED illuminated lights and switches that indicates whether a toilet is vacant or not!
Outside the toilet will be a 'Door Open switch' and also a 'toilet engaged light' (indicating when someone is using the toilet)
Inside the toilet will be a 'door open switch', a 'locked' light (which illuminates when the door is locked, a 'unlocked' light (which illuminates when the door is open' and a 'lock switch' which locks the door.
There will also be two lights behind the mirror in the toilet, one that illuminates with 'Toilet locked' and one that illuminates with 'toilet unlocked' at the appropriate times.
I should also mention that the system (lights) will be powered off a 36V 1.7A DC transformer. This I realise is too powerful for most CMOS chips Ive looked at but I can reduce the input voltage with resistPrs to bring it down to 12v.
The lights where mentioned are all LED's. Mirror writing is illuminated by a string of 20 LED's wired in serial. The switches are not toggle switches i.e. they have no discernible on or off position (a bit like PC power buttons). There are only 2 contacts on each switch - this makes them SPST if I am not mistaken?.
Switching logic:
This is what I would (in an ideal world) like to happen!
When the external or internal 'door open switch' are pressed the following lights would light up:
Mirror unlocked
Internal 'unlocked'
All other lights would be off. This would be the default state when the circuit is powered on
When the internal 'lock switch' is pressed the following lights light up:
Mirror locked
Internal locked light
external toilet engaged light.
All other lights would turn off
The problem is I cannot for the life of me figure out which CMOS controller to buy or indeed how to wire it all up! To that end I would appreciate some help.
Thanks in advance to all that glance at this
Cheers
Dave
I have well and truly wracked my brains with this one. Maybe somebody here might be able to help!
I have attached an image to this post for reference if it is needed.
I must first state that I am somewhat of a newbie at electronics - especially when logic controllers are thrown into the mix!
The setup:
In essence I would like to rig up a 'simple' system using LED illuminated lights and switches that indicates whether a toilet is vacant or not!
Outside the toilet will be a 'Door Open switch' and also a 'toilet engaged light' (indicating when someone is using the toilet)
Inside the toilet will be a 'door open switch', a 'locked' light (which illuminates when the door is locked, a 'unlocked' light (which illuminates when the door is open' and a 'lock switch' which locks the door.
There will also be two lights behind the mirror in the toilet, one that illuminates with 'Toilet locked' and one that illuminates with 'toilet unlocked' at the appropriate times.
I should also mention that the system (lights) will be powered off a 36V 1.7A DC transformer. This I realise is too powerful for most CMOS chips Ive looked at but I can reduce the input voltage with resistPrs to bring it down to 12v.
The lights where mentioned are all LED's. Mirror writing is illuminated by a string of 20 LED's wired in serial. The switches are not toggle switches i.e. they have no discernible on or off position (a bit like PC power buttons). There are only 2 contacts on each switch - this makes them SPST if I am not mistaken?.
Switching logic:
This is what I would (in an ideal world) like to happen!
When the external or internal 'door open switch' are pressed the following lights would light up:
Mirror unlocked
Internal 'unlocked'
All other lights would be off. This would be the default state when the circuit is powered on
When the internal 'lock switch' is pressed the following lights light up:
Mirror locked
Internal locked light
external toilet engaged light.
All other lights would turn off
The problem is I cannot for the life of me figure out which CMOS controller to buy or indeed how to wire it all up! To that end I would appreciate some help.
Thanks in advance to all that glance at this
Cheers
Dave
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