Introduction: Openremote Arduino Sensors Servo RGB Led and Switch
This is How to use Openremote Software to Control a RGB led with sliders for each color , use a switch to turn a led on or off , move a servo with a slider , and read a temperature sensor. All item provide feedback to show position and color.
Items needed
1. Openremote software controller setup and working
can be found here if you have not already
http://www.openremote.org/display/docs/OpenRemote+...
2. Arduino , can be pretty much any of them I use a UNO for this
3. RGB LED , can use 3 separate
4. regular LED any color
5. a servo , most any will work
6. DS18B20 temp sensor
7. 4 X 220ohm resistor 1 X 4.7k
Step 1: Build the Arduino Circuit
assemble the arduino circuit per the picture. Load the provided Sketch remember to set your ip address to one available on your network. Once this has been done you can test the setup without the openremote software by using a web browser , Chrome or firefox work better as they don't try to download the file . just put in http://192.168.2.157 or what your ip is you used and you should get something like this
{"A1": 373,"A0": 371,"S0": 91,"RED": 0,"GREEN": 255,"BLUE": 54,"D7": 0,"TEMP": 77.90,}
its a JSON file it shows the value of 2 analog inputs , the servo position , the color rage for the 3 LED's from 0 - 255 , the status of switch 1 on pin 7 and the temp. To change one of the values in the web browser enter http://192.168.2.157/pinP3=200 this will change the site to
{"A1": 364,"A0": 363,"S0": 91,"RED": 200,"GREEN": 255,"BLUE": 54,"D7": 0,"TEMP": 77.90,}
and the red led will go to almost full brightness. To turn switch 1 on (digital pin7) use
http://192.168.2.157/pinD7=1 for on or http://192.168.2.157/pinD7=0 for off
{"A1": 369,"A0": 368,"S0": 91,"RED": 200,"GREEN": 255,"BLUE": 54,"D7": 1,"TEMP": 77.90,}
notice the "D7" changed to a 1 and the LED should have come on. if you want to change all 3 colors at once you can use this http://192.168.2.157/pinC1,255,255,255 this will set all 3 colors R,G,B in that order to 255 full Brightness.
{"A1": 365,"A0": 364,"S0": 91,"RED": 255,"GREEN": 255,"BLUE": 255,"D7": 1,"TEMP": 77.90,}
here is a copy of the arduino IDE sketch
/*
* Respond to requests in the URL to change digital and analog output ports
* show the number of ports changed and the value of the analog input pins.
* for example:
* sending http://192.168.1.157/?pinD2=1 turns digital pin 2 on
* sending http://192.168.1.157/?pinD2=0 turns digital pin 2 off
* sending http://192.168.1.157/?pinP3=150 turns red color to 150
* sending http://192.168.1.157/?pinP5=100 turns green color to 100
* sending http://192.168.1.157/?pinC1,255,255,255 turns all colors up to white on one line
* sending http://192.168.1.157/?pinP6=200 turns blue color to 200 0 to 255 max val
* sending http://192.168.1.157/?pinS1=90 moves servo to 90 deg mark
* sending http://192.168.2.157 {"A1": 369,"A0": 368,"S0": 11,"RED": 0,"GREEN": 255,"BLUE": 54,"D7": 1,"TEMP": 78.35,}
*/
#include
#include
#include
#include //only for ds18b20 temp
#include //only for ds18b20 temp
#define ONE_WIRE_BUS 2
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);
DeviceAddress Sensor1 = {0x28, 0xAC, 0xD2, 0x6E, 0x04, 0x00, 0x00, 0xF9 }; // diffrent for every device ! use sketch to find
byte mac[] = {
0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xF0 };
IPAddress ip(192,168,2, 157);
IPAddress myDns(192,168,2,254);
IPAddress gateway(192, 168, 2, 254);
EthernetServer server(80);
int brightnessR = 0; //need only for rgb
int brightnessG = 0; //need only for rgb
int brightnessB = 0; //need only for rgb
int pos = 0; //need only for servo
int timer = 0;
Servo myservo; //need only for servo
void setup()
{
sensors.setResolution(Sensor1, 10); //for temp
sensors.setWaitForConversion(false); //for temp
sensors.requestTemperatures(); // for temp
myservo.attach(9); //need only for servo which pin servo is attached
Serial.begin(9600);
Ethernet.begin(mac, ip);
server.begin();
Serial.println("ready");
pinMode(3,OUTPUT);
pinMode(6,OUTPUT);
pinMode(5,OUTPUT);
pinMode(7,OUTPUT);
}
void loop()
{
// this timer keeps the temp sensor from running to much and slowing down sketch
timer = (timer +1 );
if (timer == 1000){
sensors.requestTemperatures(); // for temp
timer = 0;
}
EthernetClient client = server.available();
if (client) {
while (client.connected()) {
if (client.available()) {
// counters to show the number of pin change requests
int digitalRequests = 0;
int analogRequests = 0;
if( client.find("GET /") ) { // search for 'GET'
// find tokens starting with "pin" and stop on the first blank line
// search to the end of line for 'pin'
while(client.findUntil("pin", "\n\r")){
char type = client.read(); // D or A
// the next ascii integer value in the stream is the pin
int pin = client.parseInt();
int val = client.parseInt(); // the integer after that is the value
int valg = client.parseInt();
int valb = client.parseInt();
if( type == 'D') {
Serial.print("Digital pin ");
pinMode(pin, OUTPUT);
digitalWrite(pin, val);
}
if( type == 'S') {
Serial.print("Servo input");
myservo.write(val);
pos = val;
delay(15);
}
if( type == 'C') {
Serial.print("Color");
analogWrite(3, val);
analogWrite(5, valg);
analogWrite(6, valb);
brightnessR = val ;
brightnessG = valg ;
brightnessB = valb ;
}
if( type == 'P') {
Serial.print("PWN");
pinMode(pin, OUTPUT);
analogWrite(pin, val);
if (pin == 3 ) {
brightnessR = val ;
}
if (pin == 5 ) {
brightnessG = val ;
}
if (pin == 6 ) {
brightnessB = val ;
}
}
else if( type == 'A'){
Serial.print("Analog pin ");
analogWrite(pin, val);
analogRequests++;
}
Serial.print(pin);
Serial.print("=");
Serial.print(val);
Serial.print(",");
Serial.print(valg);
Serial.print(",");
Serial.println(valb);
}
}
Serial.println();
///*
// send a standard http response header
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: application/json");
client.println();
// output the value of each analog input pin as a json-p object
client.print("{");
client.print("\"A1");
client.print("\": ");
client.print(analogRead(1));
client.print(",");
//***********************************
client.print("\"A0");
client.print("\": ");
client.print(analogRead(0));
client.print(",");
//***********************************
client.print("\"S0");
client.print("\": ");
client.print(pos);
client.print(",");
//************************************
client.print("\"RED");
client.print("\": ");
client.print(brightnessR);
client.print(",");
//***********************************
client.print("\"GREEN");
client.print("\": ");
client.print(brightnessG);
client.print(",");
//***********************************
client.print("\"BLUE");
client.print("\": ");
client.print(brightnessB);
client.print(",");
client.print("\"D7");
client.print("\": ");
int sw1 = digitalRead(7);
if (sw1 == HIGH){
client.print("1");
}
if (sw1 == LOW){
client.print("0");
}
client.print(",");
//***********************************
client.print("\"TEMP");
client.print("\": ");
float tempC1 = sensors.getTempC(Sensor1);
client.print(DallasTemperature::toFahrenheit(tempC1));
client.print(",");
client.println("}");
break;
}
}
// give the web browser time to receive the data
delay(1);
client.stop();
}
}
Attachments
Step 2: Connect With OpenRemote
I am assuming you already have openremote installed and are a little familure with its operation. Open remote designer login , go to device and click on new give it a name like Arduino , model UNO, vendor , whatever. Then create a new command
Name: get arduino temp
Protocol: HTTP
Method GET
polling interval 10s
JSONPath Expression $.TEMP
and submit
now create a new sensor
Name: get arduino temp
Command: get arduino temp
Type: custom
then Submit.
go to designer layout drag a Label onto the grid and select sensor and choose Device Arduino and select get arduino temp
this should provide you with a temp reading
.
Step 3: Add Sliders to Openremote
Now we can add some sliders to the Layout
lets do the red ,,, it will be the same for red blue and green the only change is in the JSON value
choose new command
Name: get brightness red
Protocol: HTTP
Method: GET
Polling: 1s
JSONPath Expression $.RED
And now Submit and continue and just change the RED to BLUE, and GREEN
Now , create the command to set the value again change the RED BLUE and GREEN ,,, Also ! in the URL pinP3 for RED pinP5 for GREEN and pinP6 for BLUE
Name: set brightness RED
Protocol: HTTP
URL: http://192.168.2.157/pinP3,${param}
Method: GET
submit and continue to do the other 2
Now create a new sensor .
Name: get RED
Command: get brightness RED
Type: range
Min: 0
Max: 255
do this for the other colors also
now create the sliders
new slider
name: RED
sensor: get RED
setValue: set brightness RED
and submit
now add them to your layout
drag a slider onto the grid select the SliderCommand RED and do the same for the other 2
Step 4: Add a Servo
now we can add a servo , this can be omitted if you don't need it , will not hurt script to not be added
create a command
Name: Servo pos
Protocol: HTTP
Method: GET
Polling: 2s
JSONPath: $.S0
now submit and continue
Name: servo set
Protocol: HTTP
URL: http://192.168.2.157/pinS1,${param}
and submit
now create a sensor
Name: servo pos
Command: servo pos
Type: range
Min: 10
Max: 180
and submit
now create a slider
Name:servo
sensor: servo pos
setValue: servo set
and add to the layout same as the rgb sliders
