Yes it is cheap but I want something not home made. I found Waterproof stainless DS18B20 for 3 pounds so it's cheap

Hey, I want to make information system for my home central heating. I am searching something like thermocouple but digital(or analog) and waterproof. I want use 7 of them so I am searching cheapest way to do so.

Thanks for help

Why I must pin 5 be as output? I dont use this pin.

I connect rfm70 and st7565r and I wrote program:

Code:

#include <TouchScreen.h>
#include <Dogm.h>

//Wireless----------------------------------------------------
#include "RFM70.h"

RFM70class RFM70;
byte RFM70_buf[MAX_PACKET_LEN];  //RFM70 data buffer
unsigned long RFMSendTime = 0;   //next send time
int RFMSendSpeed=1;           //send packet every 1000 msec
//------------------------------------------------------------
int a0Pin = PIN_A0_DEFAULT;
Dogm dogm(7);

TouchScreen ts(3, 1, 0, 2);
int s,t = 0;              // s {10 - 100}  t {5 - 55}
int car_speed, car_turn = 0;  //car_speed {5 - 95 } car_turn {3 - 53}
int coords[2];


void setup(void){
 
  Serial.begin(9600);
  dogm.setContrast(10);
  //Wireless----------------------------------------------------
  RFM70.begin();
  RFM70.Initialize();
  RFMSendTime = millis();
  //------------------------------------------------------------
  pinMode(10, OUTPUT);
  pinMode(6, OUTPUT);
}

void read_speed(){
  if((coords[0] > 200) && (coords[0] < 800) && (coords[1] > 200) && (coords[1] < 815)) {
      Serial.print(", Speed:");
        s = constrain(map(coords[0], 200, 800, 10, 100), 10, 100);
        t = constrain(map(coords[1], 200, 800, 5, 55), 5, 55);
      Serial.print(s);
      Serial.print(":");
      Serial.println(t);
  }
}


void draw(){
    dogm.setHLine(20,110,30);  //speed
    dogm.setVLine(65,8,55);    // turn
   
    dogm.setVLine(120,0,63); 
    dogm.setHLine(0,119,5);
    dogm.setHLine(0,119,60); 
   
//wykrywanie przeszkód
/*if ( lewo == true ){
dogm.setBox(0,61,119,63);  // góra , czyli przeszkoda po lewej   
}

if (przodek == true){
dogm.setBox(121,0,127,63); 
}

if ( prawo == true ) {
dogm.setBox(0,0,119,4);
}  */
   
    dogm.setBox(115 - s,58-t,125 - s,64-t);

}
void loop(){
 
  DOG_PGM_P p;
  // zczytanie z panelu
  ts.read(coords);
  Serial.print(coords[0]);
  Serial.print(",");
  Serial.println(coords[1]);
 
  // komunikacja
 
  [b]digitalWrite(10,LOW);[/b]
  dogm.start();
  do{
  digitalWrite(10,LOW);
    read_speed();
    draw();
    car_speed = 115 - s;   //car_speed {5 - 95 } car_turn {3 - 53}
    car_turn =  58 - t;
  [b]digitalWrite(10,HIGH);  [/b]
   
   [b] digitalWrite(6,LOW);[/b]
    rfmTask();
 
    if (millis() > RFMSendTime)                   //send packet
    {                                                   
      RFMSendTime = millis() + RFMSendSpeed;
      RFM70_buf[0]=0X41;     
      RFM70_buf[1]=0X42;
      RFM70_buf[2]=0X43;
      RFM70_buf[3]=0X44;           
      RFM70.Send_Packet(WR_TX_PLOAD,RFM70_buf,3); 
    }
 [b] digitalWrite(6,HIGH);[/b]
 
  } while (dogm.next() );
 
 
}

void rfmTask()                //RFM70 event handler
{
  if (RFM70.RfmInterrupt())
  {
    if (RFM70.TxDataSentInterrupt())
    {
       Serial.println("Data sent OK");
       RFM70.SwitchToRxMode();
    }
    if (RFM70.TxDataSentErrorInterrupt())
    {
       Serial.println("Data sent error");
       RFM70.SwitchToRxMode();
    }
  }
}

On pin 10 i have chip select display, on pin 6 i have chip select RFM70. And only display working. I dont know what I doing wrong.

[#ifndef ADA_ST7565P_HW]

Okey, I try change PIN_SS of st7565r but I have big problem. When I use deafult chip select pin (10) SCK is working normally when I changed PIN_SS to 5 SCK doesnt work(led diode stops blink).

I change values in dogm128.h in section #ifndef ADA_ST7565P_HW .

When I change only PIN_A0_DEFAULT to another I/O pin then it is working.

So if I want to choose one of the device I can do something like this?

Code:

...
digitalWrite(2,HIGH);
digitalWrite(3,LOW);
...

When RFM70 CS pin is connect to arduino pin 2 if I choose it I disable ST7565R?

Hello , I have problem because I want to connect two device to my arduino. First is wireless module RFM70 and graphic display ST7565R. Both are with SPI interface.

I am using DOGM128 library for display and code for RFM70 from here

RFM70
ST7565R

Hello sbright33,

here is the link to the library: skip.co.at/RFM70/RFM70.zip
unpack it to C:\Program Files (x86)\arduino-1.0\libraries\RFM70.

Pinout:
CE   Pin 9
CSN  Pin 10
SCK  Pin 13
MISO Pin 12
MOSI Pin 11
IRQ  Pin 8

and don't forget the 3.3 V stepdown converter!

Please ask me if you have any questions!

Example code (not all was tested):

Code:

#include "RFM70.h"

RFM70class RFM70;

byte RFM70_buf[MAX_PACKET_LEN];  //RFM70 data buffer
unsigned long RFMSendTime = 0;   //next send time
int RFMSendSpeed=1000;           //send packet every 1000 msec


void setup()
{
    Serial.begin(57600); 
    Serial.println("Arduino Start");   
    RFM70.begin();
    RFM70.Initialize();
    RFMSendTime = millis();
 
}

void loop()
{
    rfmTask();                                    //check for RFM70 event in polling mode
    if (millis() > RFMSendTime)                   //send packet
    {                                                   
      RFMSendTime = millis() + RFMSendSpeed;
      RFM70_buf[0]=0X41;     
      RFM70_buf[1]=0X42;
      RFM70_buf[2]=0X43;
      RFM70_buf[3]=0X44;     
      RFM70.Send_Packet(WR_TX_PLOAD,RFM70_buf,4);
      Serial.println("Sending data");       
    } 
}

void rfmTask()                //RFM70 event handler
{
  if (RFM70.RfmInterrupt())
  {
    if (RFM70.TxDataSentInterrupt())
    {
       Serial.println("Data sent OK");
       RFM70.SwitchToRxMode();
    }
    if (RFM70.TxDataSentErrorInterrupt())
    {
       Serial.println("Data sent error");
       RFM70.SwitchToRxMode();
    }
    if (RFM70.RxDataReadyInterrupt())
    {
       Serial.println("Data received: ");
       byte rx_len = RFM70.Receive_Packet(RFM70_buf);
       if (rx_len)
       {
          for(byte i=1;i<rx_len;i++)
          {
            Serial.print(i);
            Serial.print("->");
            Serial.println(RFM70_buf[i]);
          }         
       }   
     }
  }
}

This is code for transmitting? How recive? I have 2 arduino's and 2 rfm70 mnodule.

Those are my modules - http://www.hoperf.com/rf_fsk/24g/rfm70.htm

Hello,
I have two arduino and two rfm70 module. I want to test communication between arduinos but I cant find any sample programs for master and slave(transmitter and receiver) Can someone help me?

So is there possible to using arduino board like USBasp?

Hello ,is there possible to replace atmega with arduino bootloader to "clean" atmega 328P(without arduino bootloader) on board and program it with avr studio in C? I checked this tutorial - http://www.jayconsystems.com/forum/viewtopic.php?f=15&t=18 but i must have arduino bootloader on atmega.

Thanks

Hello ,is there possible to replace atmega with arduino bootloader to "clean" atmega 328P on board and program it with avr studio in C? I checked this tutorial - http://www.jayconsystems.com/forum/viewtopic.php?f=15&t=18 but i must have arduino bootloader on atmega.

Thanks

I upload sketch to atmega when it was in arduino then i extract it and put in breadboard.

Hello i use manual from this site - http://arduino.cc/en/Main/Standalone and everything work but when I connect external crystal everything stops, no blinking. When I disconnect crystal and reset arduino on breadboard everything works fine.

I dont know what is wrong.