![]() ![]() Actually, a single pushbutton or rocker (with or without an indicator LED if you feel it necessary) is all that is required. The individual switches are replaced with either two pushbuttons or a centre-off rocker (or toggle) - which is an input to the Arduino. The proper way to do it is always to have a single relay switching the light with no other switches. What about if i use a DPDT relay controlled some how by the arduino and then implemented into my lighting circuit as another switch and then implement a current sensor across the LED Spotlights to enable my arduino to discover if the lights were on or off, would this work at all? Just to clarify, i was going to be using components like optocouplers to remove the risk of current/voltage blowing my little arduino to smithereens. However, if what MorganS is claiming to be correct regarding safety then i guess i would have to go down the pre-built solution. I would love this to be a project to keep me occupied for a few hours a day/week. Cost, I'm not exactly a wealthy person lets put it that way.I didn't really want to head down the route of an existing solution for 2 reasons So my plan was to swap an existing switch out and replace with a intermediate and then have a arduino nested away with the relay connected to it, with a wireless transceiver connected to communicate with my controller (that i plan on self-building and using OpenHAB software to run the whole house on). I've been looking around for a normal solution for this and research says that to switch a light from 3 different places you need to use a intermediate switch (Basically a switch with 4 terminals on, so it can always provide a live wire to the light and switches). I don't know what a intermediate switch is. (I guess because it's an SPDT switch with 3-terminals). So, you can turn-on the light when you walk into the office, and then later turn it off from the bedroom? So, sometimes up is on and sometimes up is off? That's what we call a 3-way switch here in the U.S. I was thinking to change one of the light switches to a '3-way' or a intermediate switch The both of these switches control the lighting in both rooms (I can turn the lights on or off for each room from the other room). (I didn't build any of this stuff myself.)Īt the moment I have my office and bedroom next door to each other and have a double light switch in the office and a double light switch in my bedroom. I've got about 10 controlled lights and outlets/appliances with a master timer/controller and a few manual remotes around the house. I've had an X-10 based system for many years. There a few common home automation protocols and many are "open" so you can build your own controller if you want. As a bonus, most of them can operate as dimmers. ![]() These off-the-shelf switches solve a lot of problems involved in building something yourself because they have built-in power supplies, the power line voltage remains safely isolated, they fit into a regular electrical box, and you wire 'em up just like a regular light switch. The remote-controlled switches are built around momentary switches, so there is no "mechanical memory." You can turn them on at the wall like a normal switch and then turn them off remotely later (or vice-versa). Whenever people talk about replacing (or supplementing) a light switch with a relay, I suggest a home automation solution. ![]() Sorry, I'm not clear on what you have or what you want to accomplish. If i'm confusing anyone please don't hesitate to ask questions or even ask me to draw a diagram/schematic of my ideas. What are your experiences and could you advise me please. ![]() So i then found a method that they use in France where they have a mains relay as the main switch for the light and then every other switch wired in parallel to this relay using momentary switches to pulse the relay to turn on or off meaning each switch could switch the lighting no matter the current state. So, could you advise me on the best way to do this? I was thinking to change one of the light switches to a '3-way' or a intermediate switch and then add the relay in as a third switch, but then i realized how rare these types of switches actually are here in the UK. I would like to add a arduino and a relay into this circuit to control the lighting in the bedroom. At the moment I have my office and bedroom next door to each other and have a double light switch in the office and a double light switch in my bedroom. ![]()
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