Ich hab ein kleines Problem mit einem Sketch den ich versuche zu kompilieren:
//----------------------------------------------------------------------------------------------------------------------
// TinyTX - An ATtiny84 and RFM12B Wireless Temperature Sensor Node
// By Nathan Chantrell. For hardware design see http://nathan.chantrell.net/tinytx
//
// Using the Dallas DS18B20 temperature sensor with a 4K7 resistor
//
// Requires Arduino IDE with arduino-tiny core: http://code.google.com/p/arduino-tiny/
// and small change to OneWire library, see: http://arduino.cc/forum/index.php/topic,91491.msg687523.html#msg687523
//----------------------------------------------------------------------------------------------------------------------
// modified by meigrafd @ 26.12.2013
//------------------------------------------------------------------------------
#include <RFM12B.h>
#include <avr/sleep.h>
#include <OneWire.h> // http://www.pjrc.com/teensy/arduino_libraries/OneWire.zip
#include <DallasTemperature.h> // http://download.milesburton.com/Arduino/MaximTemperature/DallasTemperature_LATEST.zip
//------------------------------------------------------------------------------
#define NODEID 1 // RF12 node ID in the range 1-30
#define NETWORKID 210 // RF12 Network group
#define FREQ RF12_433MHZ // Frequency of RFM12B module
#define GATEWAYID 22 // the node ID we're sending to
#define ACK_TIME 2000 // Number of milliseconds to wait for an ack
#define SENDDELAY 300000 // wait this many ms between sending packets
#define requestACK true // request ACK? (true/false)
//------------------------------------------------------------------------------
// PIN-Konfiguration
//------------------------------------------------------------------------------
// SENSOR pins
#define ONE_WIRE_BUS 10 // DS18B20 Temperature sensor is connected on D10/ATtiny pin 13
#define ONE_WIRE_POWER 9 // DS18B20 Power pin is connected on D9/ATtiny pin 12
// LED pin
#define LEDpin 8 // D8, PA2 (ATtiny pin 11) - set to 0 to disable LED
//------------------------------------------------------------------------------
/*
+-\/-+
VCC 1| |14 GND
(D0) PB0 2| |13 AREF (D10)
(D1) PB1 3| |12 PA1 (D9)
RESET 4| |11 PA2 (D8)
INT0 PWM (D2) PB2 5| |10 PA3 (D7)
PWM (D3) PA7 6| |9 PA4 (D6)
PWM (D4) PA6 7| |8 PA5 (D5) PWM
+----+
*/
//encryption is OPTIONAL
//to enable encryption you will need to:
// - provide a 16-byte encryption KEY (same on all nodes that talk encrypted)
// - to call .Encrypt(KEY) to start encrypting
// - to stop encrypting call .Encrypt(NULL)
//#define KEY "ABCDABCDABCDABCD"
//------------------------------------------------------------------------------
// Need an instance of the Radio Module
RFM12B radio;
// Setup a oneWire instance
OneWire oneWire(ONE_WIRE_BUS);
// Pass our oneWire reference to Dallas Temperature
DallasTemperature sensors(&oneWire);
// Temperatur-String zum Versand per 433 Mhz
char msg[26];
//##############################################################################
//--------------------------------------------------------------------------------------------------
// Read current supply voltage
//--------------------------------------------------------------------------------------------------
long readVcc() {
bitClear(PRR, PRADC); ADCSRA |= bit(ADEN); // Enable the ADC
long result;
// Read 1.1V reference against Vcc
#if defined(__AVR_ATtiny84__)
ADMUX = _BV(MUX5) | _BV(MUX0); // For ATtiny84
#else
ADMUX = _BV(REFS0) | _BV(MUX3) | _BV(MUX2) | _BV(MUX1); // For ATmega328
#endif
delay(2); // Wait for Vref to settle
ADCSRA |= _BV(ADSC); // Convert
while (bit_is_set(ADCSRA,ADSC));
result = ADCL;
result |= ADCH<<8;
result = 1126400L / result; // Back-calculate Vcc in mV
ADCSRA &= ~ bit(ADEN); bitSet(PRR, PRADC); // Disable the ADC to save power
return result;
}
//########################################################################################################################
void setup() {
radio.Initialize(NODEID,FREQ,NETWORKID); // Initialize RFM12 with settings defined above
#ifdef KEY
radio.Encrypt((byte*)KEY);
#endif
radio.Control(0xC040); // Adjust low battery voltage to 2.2V
radio.Sleep(0); // Put the RFM12 to sleep
pinMode(ONE_WIRE_POWER, OUTPUT); // set power pin for DS18B20 to output
// Start up the library
sensors.begin();
PRR = bit(PRTIM1); // only keep timer 0 going
ADCSRA &= ~ bit(ADEN); bitSet(PRR, PRADC); // Disable the ADC to save power
}
void loop() {
digitalWrite(ONE_WIRE_POWER, HIGH); // turn sensor on
delay(50); // Allow 50ms for the sensor to be ready
sensors.requestTemperatures(); // Get the temperature
int tempsensors.getTempCByIndex(0)*100); // Read first sensor and convert to integer, reversed at receiving end
//int temp2sensors.getTempCByIndex(1)*100); // read second sensor.. you may have multiple and count them upon startup but I only need one
digitalWrite(ONE_WIRE_POWER, LOW); // turn sensor off
int supplyV = readVcc(); // Get supply voltage
// msg-Variable mit Daten zum Versand fuellen, die spaeter an das WebScript uebergeben werden
snprintf(msg, 26, "v=%d&t=%d", supplyV,temp);
// Send data via RF
radio.Wakeup();
radio.Send(GATEWAYID, (uint8_t *)msg, strlen(msg), requestACK);
radio.SendWait(2); //wait for RF to finish sending (2=standby mode)
radio.Sleep();
delay(SENDDELAY);
}
Mein Problem ist das der Sketch für den ATtiny84 AVR zu gross ist: region text overflowed by 398 bytes
Sobald ich snprintf(msg, 26, "v=%d&t=%d", supplyV,temp); auskommentiere kommt:
Binäre Sketchgröße: 6.878 Bytes (von einem Maximum von 8.192 Bytes)
Nun hab ich nach einer snprintf Alternative gesucht und mini-printf gefunden - allerdings krieg ich das nicht eingebunden =(
Als Fehlermeldung kommt:
C:\Program Files\Arduino/DS18B20.ino:121: undefined reference to `mini_snprintf(char*, unsigned int, char*, ...)'
Ich hatte auch schon versucht die mini-printf.c in mini-printf.cpp umzubenennen aber dann kommen noch mehr Fehlermeldungen =(
Habe das mini-printf-master.zip geladen, in mein Sketchbook\libraries\ entpackt, Ordner umbenannt in "miniprintf" und im Sketch #include "mini-printf.h" eingefügt...
Alle anderen Libs die in dem Sketch durch #include geladen werden, sind ebenfalls in dem Ordner:
Datei -> Einstellungen -> Sketchbook Speicherort: G:_FUNK_SENSOR\sketches
Und in diesem Ordner sind zwei weitere für meine Sketches wichtige: hardware und libraries
Die Verzeichnis-Struktur im Sketchbook Ordner sieht wie folgt aus:
- hardware
`- attiny
`-- bootloaders
|-- cores
|-- variants
- libraries
`- RFM12B
|- JeeLib
|- DHT22
|- DallasTemperature
|- OneWire
|- miniprintf
Was hab ich vergessen? :s
Kann mir da bitte jemand auf die Sprünge helfen?
Vielen Dank! 
