Following is project making remote light switch which can be controlled from (normal) Local switch or from Phone. It will help you to turn on or off light without touching Local switch on wall.
Just using a phone! Some cases like reading book on bed, no need to stand-up to turn off light, then go back to bed. By this project, you can use your phone to turn off light, then go sleeeep.
Here is result (demo):
Here is result (complete): PCB toggle switch + Phone application
1. Toggle circuit
This circuit is designed to detect pulse from "normal switch" or from "remote switch" (by phone)
This circuit will help User can turn on/off in by "normal switch" or by "remote switch". So, in case can't using "remote switch", User still can turn on/off light by "normal switch"
IC-555 is center of circuit for toggle switch.
(A). Toggle circuit by IC-555
(B). Trigger signal:
(1). Capacitor and opto are used to detect rising/ falling edge from "normal switch"
(2). "Remote switch" (by phone)
Following is completed PCB board
2. Remote switch
Raspberry Pi will be used for "remote switch"
Raspberry Pi will host a local web (which contain "remote switch"), and also connect to Wifi. So, User will use phone (connected to Wifi), open local web to turn on/off light.
2.1. Hardware
Raspberry GPIO map
Pin 7 (GPIO7) will be used for "remote switch". So, Pin 7 and Pin 6 (GND) will connect to Schematic toggle switch (in Section 1)
2.2. Making local web interface:
2.2.1. Install WiringPI
WiringPI is used to control GPIO
$ sudo apt-get install git-core
$ sudo apt-get update
$ sudo apt-get upgrade
$ git clone git://git.drogon.net/wiringPi
$ cd wiringPi
$ git pull origin
$ cd wiringPi
$ ./build
$ sudo apt-get update
$ sudo apt-get upgrade
$ git clone git://git.drogon.net/wiringPi
$ cd wiringPi
$ git pull origin
$ cd wiringPi
$ ./build
Checking after installation WiringPI
$ gpio mode 0 out
->If nothing special appears, everything's fine.Sample command, write and read pin 1
$ gpio write 1 0
$ gpio read 1
$ gpio read 1
2.2. Install web server:
Install Apache HTTP server and PHP5 extension
$ sudo apt-get install apache2 php5 libapache2-mod-php5
2.3. Web interface to GPIO of Raspberry
Local web uses php to control GPIO through WiringPI (installed in Section 2.2.1)
To interface between local web and Rasberry, there is tutorial in Instructable, this web project is mainly base on that tutorial, link here.
Local web is save in /var/www/
(note that: The file "temp" should be changemod to 777)
Total my local web can be download at link here (Google share)
2.3. Control by Android app
Fortunately we successful made an Android App, it's easy for User to turn on/off light
The App can be download from Google store with keyword "Data2server" or this link
The screen of App looks like this:
There are 2 settings for local web address, and key setting:
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1. Raspberry pi - remote control car camera
It will need:
Hardware side:
1. Car toy
2. Two gear motor
3. Raspberry B+
4. Wifi dongle
5. Power bank (10A) (for Raspberry board)
6. Battery (for gear motor)
7. H-bridge circuit (L298N)
2. Rasbperry pi - FFmpeg install and stream to web
When you turn on/off by real switch, is it possible to update automatically gpio pin status on phone also?
ReplyDeleteHi, basically we can update GPIO pin status. In order to reduce cables from Raspberry to Toggle circuit, so i don't make pin-status function.
DeleteIf you are interested in this, you can do:
In file "index.php", we output pin by command: gpio mode 7 out
So, to read pin no.6:
(1) Config pin6 as input: gpio mode 6 in
(2) Read pin6: gpio read 6
(3) Raspberry will feed back pin 6 status
Hope can help you.
can i control this from anywhere in the world?
ReplyDeleteSure, just open port for Local Web. But i dont like to control through Internet because we only need to control light right near us. Far away light is no-meaning to us
Deleteis this RPi 3 ?
ReplyDeleteThis is RPi2, but this project can work with RPi3 also.
Deletewhere you done the simulation of toggle circuit.its in multisim? and can i find library of octocoupler acpl-214-500e on proteus or not?
ReplyDeleteYes, i tried in Multisim. For opto-coupler, you can find replaced one.
Deleteplease tell me its replacement
Deleteand can you send me its pcb layout
ReplyDeleteI used Eagle to make PCB Layout, you can download it here
Deletehttps://drive.google.com/file/d/0B1UeJfx4pZ1GS21DSWJYZWZSRms/view?usp=sharing
Frankly talking, make PCB will take a lot of time. Instead, i suggest to use another Arduino board act as Toggle circuit. As my experience, PCB should make some adjustment for resistor of transistor, sometimes it influence by noise.
Thanks a lots for suggesting Arduino I think I can make multiple Toggle switches with Arduino
ReplyDeletewith Arduino, you can control many Light switch, also reading Light status (ON or OFF), or even reading power consumption with current sensor. However, to communicate from Rasp to Arduino, i think we should use RF board. I will make another article about this: a solution for Home appliance by IoT
DeleteOk sir please make it soon and also include Light status (ON or OFF), and Power Consumption.
DeleteThis comment has been removed by the author.
ReplyDeleteIt is Rasp2. But also can work in Rasp3
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