Remote outlets, AVIDSEN and CHACON

Remote Control AVIDSEN (103107)

ON OFF
A 265353 265349
B 266325 266321
C 266649 266645
D 266757 266753
E 266793 266789

period 150

Remote Control CHACON (EMW200RC)

ON OFF

1 164023 164022
2 172771 172770
3 175687 175686
4 176659 176658

period 360

(Note: you may have to try different period intervals, only this worked for me, and it is different from what i get in show_received_code program from RemoteSwitch Library)

How control remote outlets with Arduino ?

1 - Get an RF 433Mhz transmitter module

2 - Install RemoteSwitch library

3 - Connect module to PIN 4

4 - Upload program with the right codes

#include <RemoteSwitch.h>



#define OUTLET_A_ON 265353

#define OUTLET_A_OFF 265349

#define PERIOD 150;



#define RF_TX_PIN 4



void setup() {

Serial.begin(9600);

}



void loop() {

Serial.println("Sending off");

transmit(OUTLET_A_OFF);

delay(5000);



Serial.println("Sending on");

transmit(OUTLET_A_ON);

delay(5000);

}



void transmit(unsigned long rcode){

unsigned long code = rcode;

unsigned long period = PERIOD;

code |= (unsigned long)period << 23;

code |= 3L << 20;

RemoteSwitch::sendTelegram(code, RF_TX_PIN); // RF transmitter pin

}

Arduino Remote Control Outlet

Today i bought an remote control outlet kit from avidsen (2 adapters + remote control)

Using the library and info from here and here, was possible to decode the on/off codes.

After finding these codes, i added and actuator to the platform with two functions on() and off()

Electric water heater

Outlet adapter

Outlet adapter and remote control

Actuator in system

Mobile version

New update: i was forgetting one important thing, set a policy to turn on water heater between 7 am and 8 am and turn off after 8 am.

My policies in system

turn_heater_on policy info

Preparing Arduino Bug Zapper

Objectives:

Detect when a bug is killed

Send data to server

Testing ATmega 328 with Arduino bootloader

No PCB :(

Bug Zapper racket

Next steps:

Attach Electret Microphone [link]

Attach 315MHz Transmitter module [link]

Calibration

Add everything to racket inside

DHT11 Arduino with VirtualWire

By some reason when using VirtualWire library and using vw_setup(2000) caused the readings from humidity sensor to fail (dht11 start condition 1 not met). I looked at datasheet and changed a the times how the MCU starts to talk with the sensor.

The code is based from this post

Here is the the fixed code:

void InitDHT() {
 pinMode(TEMP_RH_PIN, OUTPUT);
 delay(1000);
 digitalWrite(TEMP_RH_PIN,HIGH);
}

void ReadDHT() {

 bGlobalErr=0;
 byte dht_in;
 byte i;
        
        // see datasheet to understand this
        pinMode(TEMP_RH_PIN, OUTPUT);
        digitalWrite(TEMP_RH_PIN,HIGH);
        
 digitalWrite(TEMP_RH_PIN,LOW);
 delay(18);

 digitalWrite(TEMP_RH_PIN,HIGH);
 delayMicroseconds(22);

 pinMode(TEMP_RH_PIN,INPUT);
 delayMicroseconds(5);

 dht_in=digitalRead(TEMP_RH_PIN);

 if(dht_in) {
  bGlobalErr=1;
  Serial.println("<dht11 start condition 1 not met");
  return;
 }
 
 delayMicroseconds(80);
 dht_in=digitalRead(TEMP_RH_PIN);

 if(!dht_in) {
  bGlobalErr=2;
  Serial.println("<dht11 start condition 2 not met");
  return;
 }
 delayMicroseconds(80);
 
        //now ready for data reception... pick up the 5 bytes coming from the sensor
 for (i=0; i<5; i++)
    dht_dat[i] = read_dht_dat();

 //Next: restore pin to output duties
 pinMode(TEMP_RH_PIN,OUTPUT);
 digitalWrite(TEMP_RH_PIN,HIGH);

 byte dht_check_sum = dht_dat[0]+dht_dat[1]+dht_dat[2]+dht_dat[3];

 /*Condition in following "if" says "if fifth byte from sensor
       not the same as the sum of the first four..."*/
 if(dht_dat[4]!= dht_check_sum) {
   bGlobalErr=3;
          Serial.println("DHT11 checksum error");   
 }

}


byte read_dht_dat() {
 //Collect 8 bits from datastream, return them interpreted
 //as a byte. I.e. if 0000.0101 is sent, return decimal 5.
 //Code expects the system to have recently entered the
 //dataline low condition at the start of every data bit's
 //transmission BEFORE this function is called.
 byte i = 0;
 byte result=0;
 for (i=0; i< 8; i++) {
  //We enter this during the first start bit (low for 50uS) of the byte
  //Next: wait until pin goes high
  while(digitalRead(TEMP_RH_PIN)==LOW);
  delayMicroseconds(30);
  if (digitalRead(TEMP_RH_PIN)==HIGH)//Was: if(PINC & _BV(dht_PIN))
  result |=(1<<(7-i));
  while (digitalRead(TEMP_RH_PIN)==HIGH);
  //Was: while((PINC & _BV(dht_PIN)));
 }
 //end of "for.."
 return result;
}

Arduino code to read lines from serial input

Here is short and useful example to read lines from serial port in Arduino.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

void setup (){ Serial.begin(9600); Serial.flush(); digitalWrite (13, HIGH); //turn on debugging LED } void loop (){ int i=0; char commandbuffer[100]; if(Serial.available()){ delay(100); while( Serial.available() && i< 99) { commandbuffer[i++] = Serial.read(); } commandbuffer[i++]='\0'; } if(i>0) Serial.println((char*)commandbuffer); }