Sensebender Micro - Serial console - reading problem



  • I was able to upload scetch to my Sensebender Micro (1MHz) board, but I'm not able to read from console.
    I read, that it is related to baud rate of console - I have tried to change the baud rate to many possible values, but none worked yet.

    Could somebody help to identify my problem?

    Here is the code:

    #include <Wire.h>
    #include "i2c.h"
    
    #include "i2c_SI7021.h"
    SI7021 si7021;
    
    
    void setup()
    {
        Serial.begin(9600);
    
        Serial.print("Probe SI7021: ");
        if (si7021.initialize()) {
          Serial.println("Sensor found!");
        } else {
            Serial.println("Sensor missing");
            while(1) {};
        }
    }
    
    void loop()
    {
        static float humi, temp;
    
        si7021.getHumidity(humi);
        si7021.getTemperature(temp);
        si7021.triggerMeasurement();
    
        Serial.print("TEMP: ");
        Serial.print(temp);
        Serial.print(" HUMI: ");
        Serial.print(humi);
        Serial.println("");
    
    }
    
    /**<
    
    Program size:
    A1.0.5: 6896b
    A1.5.7: 6590b
    A1.6.3: 6484b / 499b
     */
    

    Here is output I see:

    0_1486108433616_Screen Shot 2017-02-03 at 8.53.41.png

    This is what I see during compilation and uploading:

    /Applications/Arduino.app/Contents/Java/arduino-builder -dump-prefs -logger=machine -hardware /Applications/Arduino.app/Contents/Java/hardware -hardware /Users/viktor/Library/Arduino15/packages -tools /Applications/Arduino.app/Contents/Java/tools-builder -tools /Applications/Arduino.app/Contents/Java/hardware/tools/avr -tools /Users/viktor/Library/Arduino15/packages -built-in-libraries /Applications/Arduino.app/Contents/Java/libraries -libraries /Users/viktor/Documents/Arduino/libraries -fqbn=MySensors:avr:MysensorsMicro:cpu=1Mhz -ide-version=10801 -build-path /var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688 -warnings=none -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.arduinoOTA.path=/Applications/Arduino.app/Contents/Java/hardware/tools/avr -prefs=runtime.tools.avr-gcc.path=/Applications/Arduino.app/Contents/Java/hardware/tools/avr -prefs=runtime.tools.avrdude.path=/Applications/Arduino.app/Contents/Java/hardware/tools/avr -verbose /Users/viktor/Documents/Arduino/i2c_SI7021-2/i2c_SI7021-2.ino
    /Applications/Arduino.app/Contents/Java/arduino-builder -compile -logger=machine -hardware /Applications/Arduino.app/Contents/Java/hardware -hardware /Users/viktor/Library/Arduino15/packages -tools /Applications/Arduino.app/Contents/Java/tools-builder -tools /Applications/Arduino.app/Contents/Java/hardware/tools/avr -tools /Users/viktor/Library/Arduino15/packages -built-in-libraries /Applications/Arduino.app/Contents/Java/libraries -libraries /Users/viktor/Documents/Arduino/libraries -fqbn=MySensors:avr:MysensorsMicro:cpu=1Mhz -ide-version=10801 -build-path /var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688 -warnings=none -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.arduinoOTA.path=/Applications/Arduino.app/Contents/Java/hardware/tools/avr -prefs=runtime.tools.avr-gcc.path=/Applications/Arduino.app/Contents/Java/hardware/tools/avr -prefs=runtime.tools.avrdude.path=/Applications/Arduino.app/Contents/Java/hardware/tools/avr -verbose /Users/viktor/Documents/Arduino/i2c_SI7021-2/i2c_SI7021-2.ino
    Using board 'MysensorsMicro' from platform in folder: /Users/viktor/Library/Arduino15/packages/MySensors/hardware/avr/1.0.1
    Using core 'arduino' from platform in folder: /Applications/Arduino.app/Contents/Java/hardware/arduino/avr
    Detecting libraries used...
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics  -w -x c++ -E -CC -mmcu=atmega328p -DF_CPU=1000000L -DARDUINO=10801 -DARDUINO_AVR_MICRO8 -DARDUINO_ARCH_AVR   "-I/Applications/Arduino.app/Contents/Java/hardware/arduino/avr/cores/arduino" "-I/Users/viktor/Library/Arduino15/packages/MySensors/hardware/avr/1.0.1/variants/micro" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/sketch/i2c_SI7021-2.ino.cpp" -o "/dev/null"
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics  -w -x c++ -E -CC -mmcu=atmega328p -DF_CPU=1000000L -DARDUINO=10801 -DARDUINO_AVR_MICRO8 -DARDUINO_ARCH_AVR   "-I/Applications/Arduino.app/Contents/Java/hardware/arduino/avr/cores/arduino" "-I/Users/viktor/Library/Arduino15/packages/MySensors/hardware/avr/1.0.1/variants/micro" "-I/Applications/Arduino.app/Contents/Java/hardware/arduino/avr/libraries/Wire/src" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/sketch/i2c_SI7021-2.ino.cpp" -o "/dev/null"
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics  -w -x c++ -E -CC -mmcu=atmega328p -DF_CPU=1000000L -DARDUINO=10801 -DARDUINO_AVR_MICRO8 -DARDUINO_ARCH_AVR   "-I/Applications/Arduino.app/Contents/Java/hardware/arduino/avr/cores/arduino" "-I/Users/viktor/Library/Arduino15/packages/MySensors/hardware/avr/1.0.1/variants/micro" "-I/Applications/Arduino.app/Contents/Java/hardware/arduino/avr/libraries/Wire/src" "-I/Users/viktor/Documents/Arduino/libraries/I2C-Sensor-Lib_iLib/src" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/sketch/i2c_SI7021-2.ino.cpp" -o "/dev/null"
    Using cached library dependencies for file: /Applications/Arduino.app/Contents/Java/hardware/arduino/avr/libraries/Wire/src/Wire.cpp
    Using cached library dependencies for file: /Applications/Arduino.app/Contents/Java/hardware/arduino/avr/libraries/Wire/src/utility/twi.c
    Using cached library dependencies for file: /Users/viktor/Documents/Arduino/libraries/I2C-Sensor-Lib_iLib/src/i2c.cpp
    Generating function prototypes...
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics  -w -x c++ -E -CC -mmcu=atmega328p -DF_CPU=1000000L -DARDUINO=10801 -DARDUINO_AVR_MICRO8 -DARDUINO_ARCH_AVR   "-I/Applications/Arduino.app/Contents/Java/hardware/arduino/avr/cores/arduino" "-I/Users/viktor/Library/Arduino15/packages/MySensors/hardware/avr/1.0.1/variants/micro" "-I/Applications/Arduino.app/Contents/Java/hardware/arduino/avr/libraries/Wire/src" "-I/Users/viktor/Documents/Arduino/libraries/I2C-Sensor-Lib_iLib/src" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/sketch/i2c_SI7021-2.ino.cpp" -o "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/preproc/ctags_target_for_gcc_minus_e.cpp"
    "/Applications/Arduino.app/Contents/Java/tools-builder/ctags/5.8-arduino11/ctags" -u --language-force=c++ -f - --c++-kinds=svpf --fields=KSTtzns --line-directives "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/preproc/ctags_target_for_gcc_minus_e.cpp"
    Compiling sketch...
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=1000000L -DARDUINO=10801 -DARDUINO_AVR_MICRO8 -DARDUINO_ARCH_AVR   "-I/Applications/Arduino.app/Contents/Java/hardware/arduino/avr/cores/arduino" "-I/Users/viktor/Library/Arduino15/packages/MySensors/hardware/avr/1.0.1/variants/micro" "-I/Applications/Arduino.app/Contents/Java/hardware/arduino/avr/libraries/Wire/src" "-I/Users/viktor/Documents/Arduino/libraries/I2C-Sensor-Lib_iLib/src" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/sketch/i2c_SI7021-2.ino.cpp" -o "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/sketch/i2c_SI7021-2.ino.cpp.o"
    Compiling libraries...
    Compiling library "Wire"
    Using previously compiled file: /var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/libraries/Wire/Wire.cpp.o
    Using previously compiled file: /var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/libraries/Wire/utility/twi.c.o
    Compiling library "I2C-Sensor-Lib_iLib"
    Using previously compiled file: /var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/libraries/I2C-Sensor-Lib_iLib/i2c.cpp.o
    Compiling core...
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-gcc" -c -g -x assembler-with-cpp -mmcu=atmega328p -DF_CPU=1000000L -DARDUINO=10801 -DARDUINO_AVR_MICRO8 -DARDUINO_ARCH_AVR   "-I/Applications/Arduino.app/Contents/Java/hardware/arduino/avr/cores/arduino" "-I/Users/viktor/Library/Arduino15/packages/MySensors/hardware/avr/1.0.1/variants/micro" "/Applications/Arduino.app/Contents/Java/hardware/arduino/avr/cores/arduino/wiring_pulse.S" -o "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/wiring_pulse.S.o"
    Using previously compiled file: /var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/WInterrupts.c.o
    Using previously compiled file: /var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/hooks.c.o
    Using previously compiled file: /var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/wiring.c.o
    Using previously compiled file: /var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/wiring_analog.c.o
    Using previously compiled file: /var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/wiring_digital.c.o
    Using previously compiled file: /var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/wiring_pulse.c.o
    Using previously compiled file: /var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/wiring_shift.c.o
    Using previously compiled file: /var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/CDC.cpp.o
    Using previously compiled file: /var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/HardwareSerial.cpp.o
    Using previously compiled file: /var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/HardwareSerial0.cpp.o
    Using previously compiled file: /var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/HardwareSerial1.cpp.o
    Using previously compiled file: /var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/HardwareSerial2.cpp.o
    Using previously compiled file: /var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/HardwareSerial3.cpp.o
    Using previously compiled file: /var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/IPAddress.cpp.o
    Using previously compiled file: /var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/PluggableUSB.cpp.o
    Using previously compiled file: /var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/Print.cpp.o
    Using previously compiled file: /var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/Stream.cpp.o
    Using previously compiled file: /var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/Tone.cpp.o
    Using previously compiled file: /var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/USBCore.cpp.o
    Using previously compiled file: /var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/WMath.cpp.o
    Using previously compiled file: /var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/WString.cpp.o
    Using previously compiled file: /var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/abi.cpp.o
    Using previously compiled file: /var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/main.cpp.o
    Using previously compiled file: /var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/new.cpp.o
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-ar" rcs  "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/core.a" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/wiring_pulse.S.o"
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-ar" rcs  "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/core.a" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/WInterrupts.c.o"
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-ar" rcs  "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/core.a" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/hooks.c.o"
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-ar" rcs  "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/core.a" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/wiring.c.o"
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-ar" rcs  "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/core.a" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/wiring_analog.c.o"
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-ar" rcs  "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/core.a" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/wiring_digital.c.o"
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-ar" rcs  "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/core.a" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/wiring_pulse.c.o"
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-ar" rcs  "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/core.a" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/wiring_shift.c.o"
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-ar" rcs  "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/core.a" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/CDC.cpp.o"
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-ar" rcs  "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/core.a" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/HardwareSerial.cpp.o"
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-ar" rcs  "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/core.a" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/HardwareSerial0.cpp.o"
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-ar" rcs  "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/core.a" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/HardwareSerial1.cpp.o"
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-ar" rcs  "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/core.a" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/HardwareSerial2.cpp.o"
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-ar" rcs  "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/core.a" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/HardwareSerial3.cpp.o"
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-ar" rcs  "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/core.a" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/IPAddress.cpp.o"
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-ar" rcs  "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/core.a" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/PluggableUSB.cpp.o"
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-ar" rcs  "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/core.a" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/Print.cpp.o"
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-ar" rcs  "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/core.a" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/Stream.cpp.o"
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-ar" rcs  "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/core.a" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/Tone.cpp.o"
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-ar" rcs  "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/core.a" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/USBCore.cpp.o"
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-ar" rcs  "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/core.a" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/WMath.cpp.o"
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-ar" rcs  "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/core.a" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/WString.cpp.o"
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-ar" rcs  "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/core.a" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/abi.cpp.o"
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-ar" rcs  "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/core.a" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/main.cpp.o"
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-ar" rcs  "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/core.a" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/new.cpp.o"
    Linking everything together...
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-gcc" -w -Os -Wl,--gc-sections -mmcu=atmega328p  -o "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/i2c_SI7021-2.ino.elf" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/sketch/i2c_SI7021-2.ino.cpp.o" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/libraries/Wire/Wire.cpp.o" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/libraries/Wire/utility/twi.c.o" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/libraries/I2C-Sensor-Lib_iLib/i2c.cpp.o" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/core/core.a" "-L/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688" -lm
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-objcopy" -O ihex -j .eeprom --set-section-flags=.eeprom=alloc,load --no-change-warnings --change-section-lma .eeprom=0  "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/i2c_SI7021-2.ino.elf" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/i2c_SI7021-2.ino.eep"
    "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-objcopy" -O ihex -R .eeprom  "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/i2c_SI7021-2.ino.elf" "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/i2c_SI7021-2.ino.hex"
    Using library Wire at version 1.0 in folder: /Applications/Arduino.app/Contents/Java/hardware/arduino/avr/libraries/Wire 
    Using library I2C-Sensor-Lib_iLib at version 0.8.2 in folder: /Users/viktor/Documents/Arduino/libraries/I2C-Sensor-Lib_iLib 
    Sketch uses 6406 bytes (20%) of program storage space. Maximum is 30720 bytes.
    Global variables use 499 bytes (24%) of dynamic memory, leaving 1549 bytes for local variables. Maximum is 2048 bytes.
    /Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avrdude -C/Applications/Arduino.app/Contents/Java/hardware/tools/avr/etc/avrdude.conf -v -patmega328p -carduino -P/dev/cu.usbserial-AI050RV3 -b57600 -D -Uflash:w:/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/i2c_SI7021-2.ino.hex:i 
    
    avrdude: Version 6.3, compiled on Dec 16 2016 at 13:32:25
             Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
             Copyright (c) 2007-2014 Joerg Wunsch
    
             System wide configuration file is "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/etc/avrdude.conf"
             User configuration file is "/Users/viktor/.avrduderc"
             User configuration file does not exist or is not a regular file, skipping
    
             Using Port                    : /dev/cu.usbserial-AI050RV3
             Using Programmer              : arduino
             Overriding Baud Rate          : 57600
             AVR Part                      : ATmega328P
             Chip Erase delay              : 9000 us
             PAGEL                         : PD7
             BS2                           : PC2
             RESET disposition             : dedicated
             RETRY pulse                   : SCK
             serial program mode           : yes
             parallel program mode         : yes
             Timeout                       : 200
             StabDelay                     : 100
             CmdexeDelay                   : 25
             SyncLoops                     : 32
             ByteDelay                     : 0
             PollIndex                     : 3
             PollValue                     : 0x53
             Memory Detail                 :
    
                                      Block Poll               Page                       Polled
               Memory Type Mode Delay Size  Indx Paged  Size   Size #Pages MinW  MaxW   ReadBack
               ----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
               eeprom        65    20     4    0 no       1024    4      0  3600  3600 0xff 0xff
               flash         65     6   128    0 yes     32768  128    256  4500  4500 0xff 0xff
               lfuse          0     0     0    0 no          1    0      0  4500  4500 0x00 0x00
               hfuse          0     0     0    0 no          1    0      0  4500  4500 0x00 0x00
               efuse          0     0     0    0 no          1    0      0  4500  4500 0x00 0x00
               lock           0     0     0    0 no          1    0      0  4500  4500 0x00 0x00
               calibration    0     0     0    0 no          1    0      0     0     0 0x00 0x00
               signature      0     0     0    0 no          3    0      0     0     0 0x00 0x00
    
             Programmer Type : Arduino
             Description     : Arduino
             Hardware Version: 3
             Firmware Version: 5.0
             Vtarget         : 0.3 V
             Varef           : 0.3 V
             Oscillator      : 28.800 kHz
             SCK period      : 3.3 us
    
    avrdude: AVR device initialized and ready to accept instructions
    
    Reading | ################################################## | 100% 0.01s
    
    avrdude: Device signature = 0x1e950f (probably m328p)
    avrdude: reading input file "/var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/i2c_SI7021-2.ino.hex"
    avrdude: writing flash (6406 bytes):
    
    Writing | ################################################## | 100% 2.45s
    
    avrdude: 6406 bytes of flash written
    avrdude: verifying flash memory against /var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/i2c_SI7021-2.ino.hex:
    avrdude: load data flash data from input file /var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/i2c_SI7021-2.ino.hex:
    avrdude: input file /var/folders/zs/f1p3lxyn54g_bqr6kvdzgps00000gp/T/arduino_build_365688/i2c_SI7021-2.ino.hex contains 6406 bytes
    avrdude: reading on-chip flash data:
    
    Reading | ################################################## | 100% 2.75s
    
    avrdude: verifying ...
    avrdude: 6406 bytes of flash verified
    
    avrdude done.  Thank you.
    
    

    This are my settings in Arduino IDE:
    0_1486108527944_Screen Shot 2017-02-03 at 8.54.59.png

    Any idea what I should fix to be able see debug messages in console?

    Thank you for help.


  • Admin

    @Viktor-Zeman

    Have you reprogrammed the fuses, so it runs at 1Mhz and not 8Mhz?

    Default fuse settings in Sensebender Micro is 8Mhz



  • Thank you for clarification, I have switched in Arduino IDE Processor to 8MHz and I can see the the serial console messages correctly now.

    BTW: can you point me to the right place how to reprogram fuses?


  • Admin

    @Viktor-Zeman

    Before you change the operating frequency, you need to find out if the sensornode will be sleeping most of the time, or if it will be active..

    If it's a sleeping node that will wake up once in a while, collect sensor data, and perhaps send it back to your controller, then it will not make that much difference if you run it at 1Mhz or at 8Mhz..

    If we look at the datasheet for atmega328 pages 336 and 337, there are a couple of graphs, showing the approximate active current, given at different frequencies / voltages..

    with a voltage of 2.7V, running at 1Mhz, the consumption is around 0.4mA, while running at 8Mhz, it's around 2mA. This seems to be a large difference, but let's take into account that the microprocessor is 8 times slower at running the same code when running at 1Mhz, than at 8Mhz, then in theory it is awake 8 times as long, when running at the lower frequency..

    If we then do a rough calculation, saying that a loop takes 1 second @8Mhz, it will take 8 seconds @1Mhz. if we "transform" this to mAh, it will give a rough data like
    running @1Mhz : (0.4 * 8 ) = 3.2
    running @8Mhz : 2.0 * 1 = 2

    And from this, we can see that running at 1Mhz, will (in theory) actually consume more power than running on 8Mhz, because the "high" current consumption will last longer at 1Mhz, than it will on 8Mhz.

    When that's said.. If you want to run at 1Mhz, you can use avrdude, and a avr ISP programming dongle to program fuses. Check out this tutorial



  • @tbowmo great answer! I agree, you are right, it has no sense to change frequency in my case. I want to measure temperature each few minutes and than sleep ...


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