💬 Various bootloader files based on Optiboot 6.2

[GertSanders]

@Samuel235
If you are using a nano, what crystal is mounted on it ? Fast flashing indicates the processor is running faster then the expected 8MHz (expected by the timing routines of the bootloader). Could it be a 16MHz model ?
In that case you could try to upload a sketch at a higher speed: 76K8 baud.
Or you can try to load the bootloader for 16MHz/D13 (which in effect is the standard bootloader of an Arduino).

[GertSanders]

@Samuel235
It also seems the nano is in a reset loop. I'm at work so I can not check my Mac for the fuse settings I use.

[Samuel235]

@GertSanders Soon as i say the fast flashing I instantly thought that its running quicker than needed, but i had no idea about the resetting that you have pointed out, so thanks for pointing that one out. The reason i didn't even bother trying the 16MHz settings in fuses would be that because when i read the fuses of the arduino before i did anything, it indicated that it was running with fuses of 8MHz and the blink sketch was perfectly timed on those settings.... Could it be a miss read on the fuse settings maybe? Should i read at a slower speed when using avrdude?

The crystal is so small on the nano and i can't even see the engraving with a microscope properly either.

I can confirm that the 16MHz bootloader is working perfectly on this nano. Thanks.

[DavidZH]

@GertSanders

I have been running your bootloader for all my nodes now and that works very well.
But there is something that surprised me. When I compile the next sketch and compare that with the Moteino bootloader it's substantially larger.

/***************************************************************************************
**
** Outdoor sensor v1.0 Measuring temperature, humdity, pressure and light level
**  Calculating a weather forecast with the height comensated air pressure.
**      powered by a solar panel and a 1000mAh Li-Ion battery.
**
** Scraped together by D Hille. MySensors library by Henrik Ekblad et al.
**
**      Heat index calculation from DHT library by Adafruit
**      MAX44009 bij Rob Tillaart
**      Weather forecast based on AN3914 by Freescale
**
****************************************************************************************/
//                    MySensors definitions

//#define MY_DEBUG                      // Enable debug prints (6 kb flash space)
//#define MY_DEBUG_VERBOSE_SIGNING      // Comment out when no signing is used or when everything is OK (3 kb flash space)

#define MY_BAUD_RATE 57600            // Set serial baudrate

#define MY_RADIO_RFM69                // Enable and select radio type attached
//#define MY_IS_RFM69HW                 // Comment out when using standard RFM69W

#define MY_NODE_ID 110                 // Delete to use automatic ID assignment

//#define MY_CORE_ONLY

/**************************************************************************/
//                        Transport
/**************************************************************************/

//#define MY_TRANSPORT_WAIT_READY_MS 1000 //Start the node even if no connection to the GW could be made (disable for sensor nodes).
#define MY_TRANSPORT_STATE_RETRIES 1
#define MY_TRANSPORT_MAX_TSM_FAILURES    (2u)
#define MY_TRANSPORT_TIMEOUT_EXT_FAILURE_STATE (60*1000ul)


/**************************************************************************/
//                        Security
/**************************************************************************/

//#define MY_SIGNING_ATSHA204
//#define MY_SIGNING_SOFT
//#define MY_SIGNING_SOFT_RANDOMSEED_PIN 7
//#define MY_SIGNING_REQUEST_SIGNATURES
//#define MY_SIGNING_NODE_WHITELISTING {{.nodeId = 0,.serial = {0xD0,0xB1,0x90,0x99,0xC3,0x03,0x08,0xD1,0x34}}}

//#define MY_RFM69_ENABLE_ENCRYPTION


/**************************************************************************/
//                    Sensor definitions
/**************************************************************************/

#define BATTERY_POWERED
#define battUpdater 300           //Number of TX actions to count before a new battery status update is sent.

#define MY_DEFAULT_TX_LED_PIN 5   // Comment out when no LED is attached.
#define MY_WITH_LEDS_BLINKING_INVERSE

#define SENSOR_TYPE 3
// Sensor types:
// 0.: no climate sensor attached
// 1.: RFM69 on-die               Temperature sensor on the RFM69 module (whole integers only)
// 2.: DS18B20                    Dallas one-wire sensor(data pin D14)
// 3.: HTU21D                     Temp/humidity (I2C)
// 4.: BME280                     Temp/humidity/pressure (I2C) (node will wake every minute to keep up with trend measureing)
#define SENSOR_UPDATE 2           // Time in minutes the sensor sends an update

//#define LIGHT_SENSOR_PRESENT      // Comment out when not present. (I2C) (Light sensor will update every 60 seconds.)

//#define INTERRUPT_SENSOR_PRESENT  // Comment out when not present (e. g. motion sensor connect to D3)

#define alti 57                  //altitude offset to compensate the barometric pressure


/**************************************************************************/
//                  Debug definitions
/**************************************************************************/

//#define LOCAL_DEBUG                              //Comment out to switch all debug messages off (saves 2 kb flash)

#ifdef MY_DEBUG                                  //Differentiate between global debug including radio and local debug 
  #define LOCAL_DEBUG                            //for the sketch alone.
#endif 

#ifdef LOCAL_DEBUG 
  #define Sprint(a) (Serial.print(a))            // Macro as substitute for serial debug. Will be an empty macro when
  #define Sprintln(a) (Serial.println(a))        // debug is switched off
#else
  #define Sprint(a)                                       
  #define Sprintln(a)
#endif


/**************************************************************************/

#include <Button.h>
#include <SPI.h>
#include <Wire.h>
#include <MySensors.h>
//#include <SparkFunBME280.h>
//#include <MAX44009.h>                           // Uncomment library used in sketch
#include <Adafruit_HTU21DF.h>
//#include <OneWire.h>
//#include <DallasTemperature.h>
#include <Vcc.h>


#define BMEaddr 0x76
#define Max44099Addr 0x4A
#define sketchName "sensorNode(living)"
#define sketchVer "1.0" 

#define sensorPowerPin 20

#define digitalSensorPin 14
#define analogSensorPin A0
#define oneWireBusPin 14
#define interruptPin 3
#define altSensorPin 18
#define altAnalogPin A4
#define sensorPowerPin 6

#define chanTemp 0
#define chanHum 1
#define chanHeat 2 
#define chanBaro 3
#define chanDelta 4
#define chanLight 5
#define chanRate 6
#define chanInterrupt 8

#define PULLUP false
#define INVERT false
#define bounceTime 20
#define sleepWait 500           //Time to wait in ms before node sleeps (to be able to receive notification messages).

bool battPower = true;

unsigned long currTime = 0;
unsigned long sleepTime = (60000 * SENSOR_UPDATE);
unsigned long lastSensorUpdate;
unsigned long nextSensor;
unsigned long measureTime;
int wakeReason = -1;
int sendLoop = 0;
bool updated = false;
bool ACKed = false;

int sensorFunc = 0;
float sensorData = 0.0;
float heatTemp = 0.0;
float heatHum = 0.0;
bool interruptState = false;
bool lastInterrupt = false;
bool sensorPresent = false;
bool lightPresent = false;
bool interruptPresent = false;

int minuteCount = 0;
bool firstRound = true;         
float pressureAvg;               // average value is used in forecast algorithm. 
float pressureAvg2;              // average after 2 hours is used as reference value for the next iteration.
float dP_dt;
const int LAST_SAMPLES_COUNT = 5;
float lastPressureSamples[LAST_SAMPLES_COUNT];

bool startUp = true;
bool metric = true; 

int battStatCounter = 0;
const float VccMin = 1.8;                   // Minimum expected Vcc level, in Volts.
const float VccMax = 3.0;                   // Maximum expected Vcc level, in Volts.
const float VccCorrection = 1.0/1.0;      // Measured Vcc by multimeter divided by reported Vcc


/**************************************************************************/
//                  Library declarations
/**************************************************************************/

//  Uncomment necessary declarations.

//RFM69 wireless;

//OneWire OWB(oneWireBusPin);
//DallasTemperature DS18(&OWB);
//DeviceAddress DS18address;

Adafruit_HTU21DF HTU = Adafruit_HTU21DF();

//BME280 BME;

//Max44009 lightMax(Max44099Addr);

//Button reedContact(interruptPin, PULLUP, INVERT, bounceTime);

MyMessage msgHum(chanHum, V_HUM);
MyMessage msgTemp(chanTemp, V_TEMP);
//MyMessage msgBaro(chanBaro, V_PRESSURE);
//MyMessage msgTrend(chanUniversal, V_VAR5);
//MyMessage msgLight(chanLight, V_LEVEL);
//MyMessage msgIntr(chanInterrupt, V_TRIPPED);

Vcc vcc(VccCorrection);

/**************************************************************************/
//                  Error messages
/**************************************************************************/

  #if (defined INTERRUPT_SENSOR_PRESENT && defined LIGHT_SENSOR_PRESENT && SENSOR_TYPE >= 4)
    #error Motion sensor can anly be combined with either I2C OR one-wire sensors, not both.
  #endif

  #if (defined INTERRUPT_SENSOR_PRESENT && (defined LIGHT_SENSOR_PRESENT || SENSOR_TYPE == 4) && defined BATTERY_POWERED)
    #error Interrupt sensor is not compatible with trend sensors like 'baro' and 'light' because the timer will misalign.
  #endif

  #if (SENSOR_TYPE > 4)
    #error Not a valid sensor type!
  #endif


/**************************************************************************/

void before(void)
{  
  Serial.println("\nReading config...");

  #ifndef BATTERY_POWERED
    battPower = false;
  #endif

  sensorFunc = SENSOR_TYPE;

  #ifdef LIGHT_SENSOR_PRESENT
    lightPresent = true;
  #endif

  #ifdef INTERRUPT_SENSOR_PRESENT
    interruptPresent = true;
    lastInterrupt = reedContact.read();
  #endif

  #if (defined MY_SIGNING_SOFT || defined MY_SIGNING_ATSHA204)
    #define sendPause 100
  #else
    #define sendPause 50
  #endif
}
 
/**************************************************************************/

void setup(void)
{  
  pinMode(sensorPowerPin, OUTPUT);       //switch on the sensor power
  digitalWrite(sensorPowerPin, HIGH);    
  wait(50);                              //wait 50 ms for the sensors to settle.
  
  switch (sensorFunc) {
    case 0:
    break;
    case 1:
      sensorPresent = true;
    break;
    case 2: 
      //DS18.begin();
      //DS18.getAddress(DS18address, 0);
      //DS18.setResolution(DS18address, 10);
      sensorPresent = true;
    break;
    case 3:
      HTU.begin();
      sensorPresent = true;
    break;
    case 4:
      //startBME();
      sleepTime = 60000;
      sensorPresent = true;
    break;    
  }

  #if (lightPresent)
    sleepTime = 60000;
    sensorPresent = true;
  #endif

  #ifdef MY_DEBUG                //Differentiate between global debug including radio and local debug          
    sleepTime = 30000;              //for the sketch alone.
  #endif

  batteryStats();

  Serial.println("\nDone. \n\nStarting program.\n");
  
  currTime = millis();
}

/**************************************************************************/

void presentation()  
{
  Serial.println("Start radio and sensors");  
  
  sendSketchInfo(sketchName, sketchVer);

  Sprint("\nPresent ");  
  
  if (sensorFunc >= 1) {
    wait(sendPause);
    present(chanTemp, S_TEMP, "Climate", true);
    Sprint("temperature");
  }
  if (sensorFunc >= 3) {
    wait(sendPause);
    present(chanHum, S_HUM);
    Sprint(", humidity");
    //wait(sendPause);
    //present(chanHeat ,S_TEMP);
    //Sprint(", heatindex");
  }
  if (sensorFunc == 4) {
    wait(sendPause);
    present(chanBaro, S_BARO);
    Sprint(", barometric");
    wait(sendPause);
    present(chanDelta, S_CUSTOM);
    Sprint(" and rate");
  }
  Sprintln(" sensor.");
  
  if (lightPresent) {
    wait(sendPause);   
    present(chanLight, S_LIGHT_LEVEL, "Light", true);
    Sprintln("\nLightsensor "); 
    if (sensorFunc < 4) {
      wait(sendPause);   
      present(chanRate, S_CUSTOM);
      Sprintln("with rate ");
    }
    Sprintln("presented.");     
  }

  if (interruptPresent) {
    wait(sendPause);
    present(chanInterrupt, S_MOTION, "Motion", true);
    Sprintln("Interrupt sensor presented.");
  }

  wait(sendPause);
}


/**************************************************************************/

void loop(void)
{
  if (wakeReason < 0) { 
    Serial.println("Reading sensors...");
    switch (sensorFunc) {
      case 0:
      break;
      case 1:
        updateRFM();
      break;
      case 2:
        updateDS18();
      break;
      case 3:
        updateHTU();
      break;  
      case 4:
        if (sendLoop <= 0) {
          updateBME();
          updated = true;
        }  
        else {
          Sprint("\nTrend: ");
          updateTrend();
          sendLoop--;
        }
      break;
    }
    if (lightPresent) {
      updateMAX();
      if (sensorFunc <= 3) {
        Sprint("\nTrend: ");
        updateTrend();
      }
    }
    wakeReason = 0;
    Sprintln("\nSensors updated...");
  }
  else if (wakeReason == 1) {
    updateInterrupt();
    wakeReason = 0;
  }
  
  if (battStatCounter >= battUpdater) {  
    batteryStats();
  }
  
  if (updated) {
    sendLoop = SENSOR_UPDATE;
    updated = false;
  }
  
  if (millis() >= currTime + sleepWait) {
    startUp = false;
    sleepSensor();
  }
}


/**************************************************************************/

void updateInterrupt()
{/*
  Sprintln("\nInterrupt: ");
  interruptState = reedContact.read();
  wait(50);
  if (interruptState == !lastInterrupt) {
    send(msgIntr.setSensor(chanInterrupt).set(interruptState),true);
    lastInterrupt = interruptState;
  }
  
  Sprint("Door/window is ");
  if (interruptState) {
    Sprintln("opened.");
  }
  else {
    Sprintln("closed");
  }*/
}


/**************************************************************************/

void updateRFM()
{/*
  Sprintln("\nRFM: ");
  sensorData = wireless.readTemperature();
  wait(20);
  send(msgTemp.set(sensorData, 0));
  Sprint("Temperature: \t"); Sprint(sensorData); Sprintln(" sent.");
  battStatCounter++;*/
}

/**************************************************************************/

void updateDS18()
{/*
  Sprintln("\nOne-wire: ");
  DS18.requestTemperatures();
  sensorData = DS18.getTempCByIndex(0);
  wait(20);
  send(msgTemp.set(sensorData, 2));
  battStatCounter++;
  Sprint("Temperature: "); Sprint(sensorData); Sprintln(" sent.");*/
}


/**************************************************************************/

void updateHTU()
{
  Sprintln("\nHTU: ");
  sensorData = HTU.readTemperature();
  heatTemp = sensorData;
  wait(20);
  send(msgTemp.set(sensorData, 1));
  Sprint("Temperature: \t"); Sprint(sensorData); Sprintln(" sent.");
  sensorData = HTU.readHumidity();
  heatHum = sensorData;
  wait(sendPause);
  send(msgHum.set(sensorData, 1));
  Sprint("Humidity: \t"); Sprint(sensorData); Sprintln(" sent.");
  //wait(sendPause);
  //send(msgHeat.set(computeHeatIndex(heatTemp, heatHum), 1));
  //Sprint("Heatindex sent.");  
  battStatCounter++;
}


/**************************************************************************/

void updateBME()
{
  /*Sprintln("\nBME: ");
  BME.begin();
  wait(100);
  sensorData = (BME.readFloatPressure()/pow(1-(alti/44330.0),5.255)/100);
  if (!startUp) {
    trend(sensorData);
    send(msgBaro.set(sensorData,1));
    Sprint("Pressure: \t"); Sprint(sensorData); Sprintln(" sent.");
  }
  if (!(minuteCount < 35 && firstRound)) {
    wait(sendPause);
    send(msgTrend.set(dP_dt,2));
    Sprint("Trend: \t\t"); Sprint(dP_dt); Sprintln(" sent.");
  }
  wait(sendPause);  
  sensorData = BME.readTempC();
  heatTemp = sensorData;
  send(msgTemp.set(sensorData,1));
  Sprint("Temperature: \t"); Sprint(sensorData); Sprintln(" sent.");
  wait(sendPause);
  sensorData = BME.readFloatHumidity();
  heatHum = sensorData;
  send(msgHum.set(sensorData,1));
  Sprint("Humidity: \t"); Sprint(sensorData); Sprintln(" sent.");
  wait(sendPause);
  send(msgHeat.set(computeHeatIndex(heatTemp, heatHum), 1));
  Sprint("Heatindex sent.");
  battStatCounter++;*/
}


/**************************************************************************/

float computeHeatIndex(float tempInput, float humInput)       //Function derived from Adafruit DHT library
{
  /*// Using both Rothfusz and Steadman's equations
  // http://www.wpc.ncep.noaa.gov/html/heatindex_equation.shtml
  float hiFar;

  float tempFar = tempInput * 1.8 + 32;

  hiFar = 0.5 * (tempFar + 61.0 + ((tempFar - 68.0) * 1.2) + (humInput * 0.094));

  if (hiFar > 79) {
    hiFar = -42.379 +
             2.04901523 * tempFar +
            10.14333127 * humInput +
            -0.22475541 * tempFar*humInput +
            -0.00683783 * pow(tempFar, 2) +
            -0.05481717 * pow(humInput, 2) +
             0.00122874 * pow(tempFar, 2) * humInput +
             0.00085282 * tempFar*pow(humInput, 2) +
            -0.00000199 * pow(tempFar, 2) * pow(humInput, 2);

    if((humInput < 13) && (tempFar >= 80.0) && (tempFar <= 112.0))
      hiFar -= ((13.0 - humInput) * 0.25) * sqrt((17.0 - abs(tempFar - 95.0)) * 0.05882);

    else if((humInput > 85.0) && (tempFar >= 80.0) && (tempFar <= 87.0))
      hiFar += ((humInput - 85.0) * 0.1) * ((87.0 - tempFar) * 0.2);
  }

  return (hiFar - 32) * 0.55555;*/
}


/**************************************************************************/
void updateTrend()
{
  /*if (sensorFunc == 4) {
   * Sprint("BME -> ");
    BME.begin();
    wait(100);
    sensorData = (BME.readFloatPressure()/pow(1-(alti/44330.0),5.255)/100);
  }
  else if (lightPresent) {
    Sprint("MAX -> ");
    sensorData = lightMax.getLux();
  }
  trend(sensorData);*/
}


/**************************************************************************/

void updateMAX()
{
  /*Sprintln("\nLight: ");
  sensorData = lightMax.getLux();
  if (sensorFunc <= 3) {
    trend(sensorData);
  }
  send(msgLight.set(sensorData,1));
  Sprint("Light: \t"); Sprint(sensorData); Sprintln(" sent.");
  if (sensorFunc <= 3) {
    if (!(minuteCount < 35 && firstRound)) {
      wait(sendPause);
      send(msgTrend.set(dP_dt,2));
      Sprint("Trend: \t"); Sprint(dP_dt); Sprintln(" sent.");
    }
  }
  battStatCounter++;*/
}


/**************************************************************************/

void sleepSensor()
{
  if (battPower) {
    Serial.println("\nSleep the sensor.");
    wait(50); 
    unsigned long lightsOut = (sleepTime - (millis() - currTime));
    if (interruptPresent) {
      if (sensorPresent) {
        wakeReason = sleep(1, CHANGE, lightsOut);
      }
      else {
        wakeReason = sleep(1, CHANGE, 0);
      }
    }
    else {
      //digitalWrite(sensorPowerPin, LOW);      //Disabled because of the I2C pull ups on the HTU board
      sleep(lightsOut);                         //causing a 140uA load in sleep. Without, sleep drain is 5uA.
      wakeReason = -1;
      //digitalWrite(sensorPowerPin, HIGH);
      wait(50);
    }
    currTime = millis();
    Sprint("Wake reason: ");Sprintln(wakeReason);
  }
  else if (millis() >= currTime + sleepTime) {
    wakeReason = -1;
    currTime = millis();
  }
}


/**************************************************************************/

/*void startBME()
{
  BME.settings.commInterface = I2C_MODE;
  BME.settings.I2CAddress = BMEaddr;
  BME.settings.runMode = 1;            //  1, Single mode
  BME.settings.tStandby = 0;           //  0, 0.5ms
  BME.settings.filter = 0;             //  0, filter off
  BME.settings.tempOverSample = 1;
  BME.settings.pressOverSample = 1;
  BME.settings.humidOverSample = 1;  
  
  BME.begin();
}


/**************************************************************************/

float getLastPressureSamplesAverage()
{
  float lastPressureSamplesAverage = 0;
  for (int i = 0; i < LAST_SAMPLES_COUNT; i++)
  {
    lastPressureSamplesAverage += lastPressureSamples[i];
  }
  lastPressureSamplesAverage /= LAST_SAMPLES_COUNT;

  return lastPressureSamplesAverage;
}


/**************************************************************************/

void trend(float pressure)
{/*
  int index = minuteCount % LAST_SAMPLES_COUNT;                 // Calculate the average of the last 5 minutes.
  lastPressureSamples[index] = pressure;

  minuteCount++;
  if (minuteCount > 185)
  {
    minuteCount = 6;
  }

  if (minuteCount == 5)
  {
    pressureAvg = getLastPressureSamplesAverage();
    Sprint("First average: "); Sprint(pressureAvg);
  }
  else if (minuteCount == 35)
  {
    float lastPressureAvg = getLastPressureSamplesAverage();
    float change = (lastPressureAvg - pressureAvg);
    if (firstRound)                                             // first time initial 3 hour
    {
      dP_dt = change * 2;                                       // note this is for t = 0.5hour
    }
    else
    {
      dP_dt = change / 1.5;                                     // divide by 1.5 as this is the difference in time from 0 value.
    }
  }
  else if (minuteCount == 65)
  {
    float lastPressureAvg = getLastPressureSamplesAverage();
    float change = (lastPressureAvg - pressureAvg);
    if (firstRound)                                             //first time initial 3 hour
    {
      dP_dt = change;                                           //note this is for t = 1 hour
    }
    else
    {
      dP_dt = change / 2;                                       //divide by 2 as this is the difference in time from 0 value
    }
  }
  else if (minuteCount == 95)
  {
    float lastPressureAvg = getLastPressureSamplesAverage();
    float change = (lastPressureAvg - pressureAvg);
    if (firstRound)                                             // first time initial 3 hour
    {
      dP_dt = change / 1.5;                                     // note this is for t = 1.5 hour
    }
    else
    {
      dP_dt = change / 2.5;                                     // divide by 2.5 as this is the difference in time from 0 value
    }
  }
  else if (minuteCount == 125)
  {
    float lastPressureAvg = getLastPressureSamplesAverage();
    pressureAvg2 = lastPressureAvg;                             // store for later use.
    float change = (lastPressureAvg - pressureAvg);
    if (firstRound)                                             // first time initial 3 hour
    {
      dP_dt = change / 2;                                       // note this is for t = 2 hour
    }
    else
    {
      dP_dt = change / 3;                                       // divide by 3 as this is the difference in time from 0 value
    }
  }
  else if (minuteCount == 155)
  {
    float lastPressureAvg = getLastPressureSamplesAverage();
    float change = (lastPressureAvg - pressureAvg);
    if (firstRound)                                             // first time initial 3 hour
    {
      dP_dt = change / 2.5;                                     // note this is for t = 2.5 hour
    }
    else
    {
      dP_dt = change / 3.5;                                     // divide by 3.5 as this is the difference in time from 0 value
    }
  }
  else if (minuteCount == 185)
  {
    float lastPressureAvg = getLastPressureSamplesAverage();
    float change = (lastPressureAvg - pressureAvg);
    if (firstRound)                                             // first time initial 3 hour
    {
      dP_dt = change / 3;                                       // note this is for t = 3 hour
    }
    else
    {
      dP_dt = change / 4;                                       // divide by 4 as this is the difference in time from 0 value
    }
    pressureAvg = pressureAvg2;                                 // Equating the pressure at 0 to the pressure at 2 hour after 3 hours have past.
    firstRound = false;                                         // flag to let you know that this is on the past 3 hour mark. Initialized to 0 outside main loop.
  }

  Sprint(F("\tForecast at minute "));
  Sprint(minuteCount);
  Sprint(F(" dP/dt = "));
  Sprint(dP_dt);
  Sprint(F("hPa/h --> "));*/
}


/**************************************************************************/

void batteryStats()
{
  if (battPower) {
    float battPct = vcc.Read_Perc();
    float battVolt = vcc.Read_Volts();
    wait(50);
    sendBatteryLevel(battPct);
    Sprint("Battery level: "); Sprint(battVolt); Sprintln("V.\n");
    battStatCounter = 0;
    wait(50);
  }  
}


/**************************************************************************/

void sendBattLevel()
{
  /*Serial.println("\nBattery: ");
  int ADread = analogRead(batteryPin);
  int battPcnt = map(ADread, 570, 704, 0, 100);  //Usable voltage range from 3.4 to 4.2V
  battPcnt = constrain(battPcnt, 0, 100);        //Charging keeps it at 100%
  sendBatteryLevel(battPcnt);
  Sprint("\nADread\t"); Sprint(ADread); Sprint("\t"); Sprintln(battPcnt);
  battStatCounter = 0;*/
}  

GertSanders ATMega328p 32p TFQP, 8MHz, 38400baud

Warning: Board breadboard:avr:atmega328bb doesn't define a 'build.board' preference. Auto-set to: AVR_ATMEGA328BB

Sketch uses 16,680 bytes (51%) of program storage space. Maximum is 32,256 bytes.
Global variables use 942 bytes (45%) of dynamic memory, leaving 1,106 bytes for local variables. Maximum is 2,048 bytes.

LowPowerLab Moteino 16MHz

Warning: Board breadboard:avr:atmega328bb doesn't define a 'build.board' preference. Auto-set to: AVR_ATMEGA328BB

Sketch uses 14,264 bytes (44%) of program storage space. Maximum is 31,744 bytes.
Global variables use 890 bytes of dynamic memory.

In this sketch the size difference doesn't matter that much. But when I introduce signing it will get tight.
Any thoughts?

(This is a standard sketch which I adapt for every node by commenting out the parts I do not need. So it might seem large for a simple temperature node. It is...).

[GertSanders]

@DavidZH
Do you also get these differences when compiling for both 16Mhz ? In this case one node is 16MHz (Moteino) and the second is 8MHz.
Apart from that I have no clue why this would result in different sizes.

[DavidZH]

I have tried with your bootloader on 16MHz and 8 MHz with crystal.

8MHz, crystal, 1V8

Warning: Board breadboard:avr:atmega328bb doesn't define a 'build.board' preference. Auto-set to: AVR_ATMEGA328BB
Build options changed, rebuilding all

Sketch uses 16,680 bytes (51%) of program storage space. Maximum is 32,256 bytes.
Global variables use 942 bytes (45%) of dynamic memory, leaving 1,106 bytes for local variables. Maximum is 2,048 bytes.

16MHz, crystal, 1V8

Warning: Board breadboard:avr:atmega328bb doesn't define a 'build.board' preference. Auto-set to: AVR_ATMEGA328BB
Build options changed, rebuilding all

Sketch uses 16,694 bytes (51%) of program storage space. Maximum is 32,256 bytes.
Global variables use 942 bytes (45%) of dynamic memory, leaving 1,106 bytes for local variables. Maximum is 2,048 bytes. 

So the 16Mhz file is actally even a bit bigger. I also tried if changing the BOD voltage would change anything, but nope on that.

Might be something to look into in a spare hour.

[mar.conte]

hy,
can anyone tell me what is the word near cpu 8mhz-38k4-d13 etc..??
tanks

[Samuel235]

@mar.conte - Your question isn't very clear. If you're asking what the name means its broken down as:

8mhz - Crystal speed/frequency
38k4 - 38400 upload speed
D13 - Pin 13 to flash the LED (if needed) just for visual indication that the bootloader has been burnt/installed.

Not sure if that is what you meant but I could only assume. If not then please attempt to explain a little clearly for us :)

Hope that sorts your problem!

[mar.conte]

@Samuel235
Sorry for my english, your answer is ok Tanks you

[Samuel235]

@mar.conte - Its okay, i understood you, just about ;)

Now just apply that description to all of the other bootloader varients that the great @Gertsanders has provided us with :)

[mar.conte]

Help!!!
I have upload bootloader 8mhz 38k bod 2,7 and internal clock with sketch j gammon!!!
Consumption 2 mh!!!
Why?
Tanks

[Samuel235]

I'm sorry, i don't understand the issue at hand.... Could you attempt to explain any clearer?

[mar.conte]

This post is deleted!

[mar.conte]

@Samuel235
Hy
My project is simple atmega328 with internal clock 8 mhz in powerdown mode end rfm69 hw which send to gateway when pir motion is high powered all with 2 aa battery.
The First test what i do is in breadboard atmega328 with optiboot 6.2 ( i have upload bootloader 8mhz internal , 38vk, bod 2v7) and simple sketch j gammon: result no microampere but around 2/5 mah in sleep mode;

[alexsh1]

@mar.conte I'm not familiar with the sketch you mentioned. The best is to use the voltmeter and oscillograph to determine consumption.

Why do you have BOD 2.7v? I do not have any BOD - this would let a node to run on two batteries until voltage drops to below 1.9V

[mar.conte]

@alexsh1
I have only voltmeter extec, can i mesure ua?
Can you send simple sketch for deep sleep ?

[Samuel235]

@mar.conte - Are you basically saying that your hardware is using too much power to enable you to run on battery for any substantial time?

[mar.conte]

@Samuel235
Yes, i want obtain few micro amp but its two month wich i try without result.....

[tonnerre33]

@mar.conte Which skecth did you use ?
Did you have radio errors in your log ?

[Samuel235]

Could you please either include your sketch here or give us a link to the example sketch that you used please.