Www Instructables Com Id Cheap Wireless Motion Sensor Device

8/11/2019 Www Instructables Com Id Cheap Wireless Motion Sensor Device

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Cheap Wireless Motion Sensor Device by Jochefor

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I think we all have the dream to became a super spy, so if you are in a secretmission, you are doing something in your house and you don't want to get caught,our you are just eating all the cookies in the kitchen and you want to know if your

mother is coming, the wireless motion sensor devices are for you.

I see a lot of wireless in de web and in movies, but i want to figure out the way tomake it cheap for everyone so I use an attiny85, a pir sensor (motion sensor) anda rf link to make the project work.

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w ireless rf 315hz motion sensor Tags:
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Step 1: Material

Related

dev ice pir sens or transmitter rec eiv er

attiny85 cheap

Hack your LED Strip with a

Motion Sensor and Timer

by bradk3

The Wireless,Obstacle

Detecting,Beeping Robot

using Arduinos!

by robodude95

DIY Motion Sensing

Ceiling Fan/light ***5$Energy Saver!!!***
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As you can see in the image everything in the circuits works with 5Volts but the pirsensor works with 9 to 12 volts. To fix this and save the work and spend ofconnecting the circuits to 2 different kind of voltage i use a lm7805, that is a 5Voltsregulator, and connect everything to a 9V(square) battery.

If you want to make a pcb to have all the connections in a cleaner way I will put apdf file below so you can print it and transfer with the method you want.

2 connection do not fit in the design so y place them with wires. (the twoconnections are the yellow ones in the second image)

Show All 8 Items
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To program the attiny85 you can use the arduino uno as isp programmer. You canlook this link (http://hlt.media.mit.edu/?p=1706) for more information about thisprocces, but you dont need to because im gonna explain everything in detail.

I use a attiny because is cheaper than use an arduino. you can buy a attiny85for 2.84USD, compare to an arduino for about 38 dolars. Using an attiny tocomunicate through a rf link represent a chalenge because the attiny doesn't havea rx or tx serial comunication by default. I want to thanks this blog (http://mchr3k-arduino.blogspot.mx/) for make the program that make possible to comunicate withan attiny.

ok. so let go to step by step programing.

1. go to the arduino oficial site and download the arduino-0022 software. (don't usethe arduino 1.0, it doesn't work). Unzip the file. you should see a folder name
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df di b PRO i A d l ? T t th HTML t PDF API

arduino-0022.

2. go to this link.

http://mchr3k-arduino.blogspot.mx/2012/01/wireless-sensor-node-part-2.html?showComment=1338749638806#c853067277980266192

download the attiny45_85.zipand the manchester.zipfiles.

3. Unzip the attiny45_85.zip file. copy the folder.open the arduino-0022 folder. Open hardwareand paste the attiny45_85 folderthere.

4.Unzip the manchester.zip file. open that manchester folder and you should seetwo other folders. core and MANCHESTER.copy de MANCHESTER folder.

open again the arduino-0022 folder. but this time open thelibrariesfolder. pastethe MANCHESTER folder there.

Now you have the software ready to program.

5. launch the arduino-0022 program. click in the arrow poining up (open) and openthe ArduinoISP example. click in tools>board>arduino uno. (look you now have allthe attiny in there).

Upload the program.

6. Place the attiny85 in a protoboard (breadboard), and connect everythingh to thearduino as the image. Be shure you place the attiny in the correct way or you aregoing to burn it. (happened to me :P) .

7. On the arduino program go to tools>board>attiny85 (w/ Arduino as ISP). click
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again tools>burn bootloader>w/ Arduino as ISP. (you may see a error but that'sok).

ok, So let's make the program for the transmitter.

Step 4: Transmitter
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here is the program for the transmitter. if you make the last step in order now youjust have to place the code in the arduino program and upload it.

#include //include the library to comunicate#define TxPin 2 //the pin that is used to send data

unsigned int Tdata = 0; //begin the data in 0

int TRANSISTOR_PIN = 1; //pin that turn ON and OFF the transistorint PIR_SENSOR_PIN = 0; //the motion sensor pin

void setup(){ MANCHESTER.SetTxPin (TxPin); //set the pin of comunication

pinMode(TRANSISTOR_PIN, OUTPUT);pinMode(PIR_SENSOR_PIN, INPUT);

}

void loop(){int pirVal=digitalRead(PIR_SENSOR_PIN); //read the state of the motion sensor if(pirVal == LOW)//if pir sensor detect movement then

{/*action, in this case turn ON the transistor to power

the transmitter then send the message, the turn OFF the transistor*/

digitalWrite(TRANSISTOR_PIN, HIGH);//transistor ON delay(1000);
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for the receiver you just have to program the arduino. So go to tools>board andselect arduino uno.copy this code. and Upload it.

#include //include the comunication library#define RxPin 6 / /define the receiver pin#define speaker 9#define sensor1alarm 12#define sensor2alarm 11#define sensor3alarm 10

void setup()

{MANCHESTER.SetRxPin(RxPin); //user sets rx pin default 6MANCHESTER.SetTimeOut(1000); //user sets timeout default blocksSerial.begin(9600); // Debugging only//setting the pins in arduinopinMode(sensor1alarm, OUTPUT);digitalWrite(sensor1alarm, LOW); pinMode(sensor2alarm, OUTPUT);

digitalWrite(sensor2alarm LOW);
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digitalWrite(sensor2alarm, LOW); pinMode(sensor3alarm, OUTPUT);digitalWrite(sensor3alarm, LOW);pinMode(speaker, OUTPUT);digitalWrite(speaker, LOW);}//end of setup

void loop(){unsigned int data = MANCHESTER.Receive();

if(data==50) //match this number with the sensor number

{

digitalWrite(sensor1alarm, HIGH); //turn ON the sensor1alarm led

for (int i=0; i


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/*if you have more than one transmiter you just have to give a diferent number tothe transmiter and copy from if(data==50) to end of if, and paste it in theindication. and change the number 50 to the number in the other transmitter.*/

arduino receiver shield.pdf 4 KB

Step 6: Conclusion
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You can place your sensor in every case you want. I place mine in soda cansbecause I think no one is going to check if there is something wrong with a can.and you can place everywhere and doesn't seems weird. So enjoy been a secretspy or just protect your house from strangers in the night. the uses are endless,you just have to put your creativity to work a little.

p.d. (you can change the motion sensor, for a lot of other sensors with a littlechanges in the design and you can have temperature sensors, sound sensors,ultrasonic sensors, gas sensors, infrared sensors, and a lot of other sensors for acheap price that can sense things from a safe distance).

I hope you enjoy this instructable :), sorry if my english is not the best.

Step 7: How to use 3 transmitters with one receiver
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this is the code for using 3 motion sensors with one receiver:

//use this for the receiver//***********************************************************************************************

#include //include the comunication library#define RxPin 6 / /define the receiver pin#define speaker 9#define sensor1alarm 12#define sensor2alarm 11#define sensor3alarm 10
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digitalWrite(sensor1alarm, LOW); //turn OFF the sensor1alarm led delay(500);

}//end of ifelse if(data==100) //match this number with the sensor number{digitalWrite(sensor2alarm, HIGH); //turn ON the sensor1alarm led

for (int i=0; i


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digitalWrite(sensor3alarm, LOW); //turn OFF the sensor1alarm led delay(500);}

}//end of loop

//**************************************************************************************************//use this for one of the transmitters//transmitter 1.




void setup(){

MANCHESTER.SetTxPin (TxPin); //set the pin of comunication pinMode(TRANSISTOR_PIN, OUTPUT); pinMode(PIR_SENSOR_PIN, INPUT);}

void loop(){int pirVal=digitalRead(PIR_SENSOR_PIN); //read the state of the motion sensor

if(pirVal == LOW)//if pir sensor detect movement then


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{/*action, in this case turn ON the transistor to power the transmitter then send the message, the turn OFF the transistor*/


Tdata = 50;

MANCHESTER.Transmit(Tdata); //transmit the signal delay(100);

digitalWrite(TRANSISTOR_PIN, LOW);//turn OFF transistor to save battery }

delay(2000);}

//********************************************************************************************//use this for the secod transmitter.//transmitter 2.

#include //include the library to comunicate

#define TxPin 2 //the pin that is used to send data



void setup(){


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{ MANCHESTER.SetTxPin (TxPin); //set the pin of comunication pinMode(TRANSISTOR_PIN, OUTPUT); pinMode(PIR_SENSOR_PIN, INPUT);}




Tdata = 100;


digitalWrite(TRANSISTOR_PIN, LOW);//turn OFF transistor to save battery } delay(2000);}

//*******************************************************************************************//use this for transmitter 3//transmitter 3.

//receiver 2


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//receiver 2.




void setup(){ MANCHESTER.SetTxPin (TxPin); //set the pin of comunication pinMode(TRANSISTOR_PIN, OUTPUT);

pinMode(PIR_SENSOR_PIN, INPUT);}




Tdata = 150;

MANCHESTER Transmit(Tdata); //transmit the signal


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digitalWrite(TRANSISTOR_PIN, LOW);//turn OFF transistor to save battery } delay(2000);}

Step 8: Receiver 2.0
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Some of you ask if I can upload the receiver pcb for making the receiver with aattiny85 like the transmitters, to avoid using the arduino uno. Sooo here they arethe files to make the receiver for cheap. I hope you like them.

I leave the 3 leds as in the arduino version but instead of placing a speaker y place

a relay so you can activate any device you like. For example your house lights, analarm or any device that you like.

Warning: make sure you use a relay made for the voltage you are going to use forthe circuit. If you are using a 12V relay make sure you use 12v in the BAT1 place

here is the code:
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digitalWrite(sensor1alarm, HIGH); //turn ON the sensor1alarm led delay(500);


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y( ); digitalWrite(sensor1alarm, LOW); //turn OFF the sensor1alarm led delay(500); }

}//end of if

if(data==100) //match this number with the sensor number{ for(int i=0 ; i


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{ for(int i=0 ; i


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Make Comment

17 days ago Reply

2 months ago Reply

2 months ago Reply

7 months ago Reply

luisfocosta

How would it work with an existing wireless motion sensor ?

I am trying to re-use some wireless motion sensors from my previous WirelessHome Alarm system

hotcheezy

Hi, can I do 1 transmitter and maybe 3 receivers?

Jochefor(author) hotcheezy

you can make 1 transmitter with all the receivers you want

fmuhammad3

ok..use arduino 1.0.3 and compile without error..now the weird thing is why the proteus picture got many component(2 resistoretc) and the other picture only got like 7 component..did i miss something orthat circuit include with voltage regulator??

7 months ago ReplyJochefor(author) fmuhammad3

yes is because in the component picture I only add the most important
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7 months ago Reply

7 months ago Reply

7 months ago Reply

7 months ago Reply

yes, is because in the component picture I only add the most importantcomponents, and if you see the picture you need 5v and 12v. In theproteus picture I add a voltage regulator so you only need one 12Vvoltage source, and the 5 volts are regulated from there.

fmuhammad3 Jochefor

ok..thanks sir..u are so helpful

fmuhammad3 Jochefor

ok..thanks sir..u are so helpful

Jochefor(author)

this two messages are normal

avrdude: please define PAGEL and BS2 signals in the configuration file forpart ATtiny85avrdude: please define PAGEL and BS2 signals in the configuration file forpart ATtiny85

but the two below are not normal, I think you select the wrong programmer. You

need to select the "arduino as isp" programmer, I think you select "avrdude"as programmer in your options

fmuhammad3

i got this error message..is that normal??avrdude: please define PAGEL and BS2 signals in the configuration file for

part ATtiny85avrdude: please define PAGEL and BS2 signals in the configuration file for

t ATti 85
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8 months ago Reply

12 months ago Reply

1 year ago Reply

1 year ago Reply

part ATtiny85avrdude: invalid byte value (null) specified for immediate modeavrdude: write to file 'null' failed

Ridach

Ouch thats expensive you relize on Ebay you can get everything for this projectfor a lot less, exp PIR sensor is only 1.75

Jochefor(author)

I forgot to mention, the red pad its actually a wire that you need to place in thecomponent side. I place it like that because i dont have more room in thebottom part.

Neg4

hey i was thinking of building a similar device and i had two questions.One is there any way i can use this device to trigger a video to play?and am not that much of a hardware connoisseur but i can follow some goodinstruction well, so could i build this thing and expect it to work?

Jochefor(author) Neg4

yes i think you can make that, but if you are not really good withhardware i recomend you to make the easy way. buy two arduinos, themotion sensor and the tranmiter and receiver. its a little moreexpensive but is way easier. instead of the attiny conect all to thearduino and program the arduino the normal way. to trigger a video irecomen you to get an old keyboard, sold the enter button the arduino

and in that way you can concet the arduino to the pc without connectingthe arduino phisicaly. if you have more questions please ask. and i willlike to see the final proyect when you finish it :)
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1 year ago Reply

1 year ago Reply

1 year ago Reply

1 year ago Reply

1 year ago Reply

like to see the final proyect when you finish it :)

Neg4 Jochefor

thanks! i'll give it a shot somehow since i have access to an arduino itwill be much cheaper if i attempt your model. maybe i'll make an

extension to your intractable on how to make it play video.

computurwizard

Is it possible to use an attiny45 for either the xmitter or receiver? I ordered thexmit/rcv pair but forgot that I'd need another uC. All I have on hand atm are 45'sand tiny13's :(

Jochefor(author) computurwizard

yes you can usea attiny45's just when you program them make sureyou select that option. I never used them but I look in the sources I usedand you can use them.

diy_bloke

interesting. May build this :-)

Jochefor(author) diy_bloke

thanks :)

1 year ago Replytpeterson1959

Yo vivi en Centro America por casi siete aos y su ingles es mucho mas
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1 year ago Reply

1 year ago Reply

p y gmejor que mi espaol!

This is a great Instructible and very well written.

rimar2000

I don't know electronics, but this seems a very useful project.

Jochefor(author) rimar2000

thanks. it's really useful for me. I live in mexico and having this makeme feel a little safer
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