In file included from C:\Users\User\OneDrive\Desktop\glasses arduino\glasses arduino.ino:9:0:
C:\Users\User\OneDrive\Desktop\glasses arduino\bitmap.h:1269:43: error: variable 'bitmap_array' must be const in order to be put into read-only section by means of 'attribute((progmem))'
PROGMEM const unsigned char* bitmap_array[] = {
^
C:\Users\User\OneDrive\Desktop\glasses arduino\glasses arduino.ino: In function 'void setup()':
C:\Users\User\OneDrive\Desktop\glasses arduino\glasses arduino.ino:141:11: error: 'buttonPin' was not declared in this scope
pinMode(buttonPin, INPUT); // Defines button pin
^~~~~~~~~
C:\Users\User\OneDrive\Desktop\glasses arduino\glasses arduino.ino: In function 'void loop()':
C:\Users\User\OneDrive\Desktop\glasses arduino\glasses arduino.ino:164:18: error: 'buttonPin' was not declared in this scope
if(digitalRead(buttonPin) == LOW) isClicked = LOW;
^~~~~~~~~

exit status 1

Compilation error: variable 'bitmap_array' must be const in order to be put into read-only section by means of 'attribute((progmem))'

I had done everything and then was shocked because the app didn't work although Bluetooth was successfully connected. No data is sent to the watch. What can I do now😢? Is there any apps which can be used instead?

I use RetroWachArduino_u8glib_no_button and got this compiler error:

variable 'bitmap_array' must be const in order to be put into read-only section by means of 'attribute((progmem))'

i need Help pleas

bitmap.h:1269: error: variable 'bitmap_array' must be const in order to be put into read-only section by means of 'attribute((progmem))'

PROGMEM const unsigned char* bitmap_array[] = {

                                       ^

I am using this sketch to make smart glasses, but I don't know where and how to download the app. It's not on google play store. Please help me.

The app will connect to my watch and the time will display but no notifications are going through

there is a programming error..it says bitmap array must be const
what should i do?

contineuosly getting error compiling project in Arduino.
in drawmassage ,drawemergency,draw icon function
icon_array_size not declared

Need to change lines such as PROGMEM const char* weekString[] to PROGMEM const char* const weekString[], otherwise, it'll report errors like:

error: variable 'weekString' must be const in order to be put into read-only section by means of 'attribute((progmem))'

Arduino wiki for AVR PROGMEM errors

Why can't I open the source code of the application in Android Studio and Intellij Idea?
Can you provide a new link to the application files?
I want to tweak some things.
Sorry for my English

bitmap.h:1269: error: variable 'bitmap_array' must be const in order to be put into read-only section by means of 'attribute((progmem))'

PROGMEM const unsigned char* bitmap_array[] = {

                                       ^

When i open the code provided in github and compile it, it give like 50 different errors saying things aren't defined. Am i doing something wrong

I have successfully completed the project but when I plug it in it sets itself to 00:00 Sunday analog mode. The time doesn't get corrected, no notifications are sent and I can't change the mode. Despite this the phone claims that it is connected to the device. the Bluetooth device has it's LED lit and looks like it is working. I am using RetroWatchArduino_u8glib_no_button.

Arduino: 1.8.11 Hourly Build 2019/10/11 11:33 (Windows 10), Board: "Arduino Nano, ATmega328P"

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `cbegin':

sketch/U8glib.h:53: undefined reference to `u8g_Begin'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `firstPage':

sketch/U8glib.h:107: undefined reference to `u8g_FirstPage'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `drawStr':

sketch/U8glib.h:171: undefined reference to `u8g_DrawStr'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::drawLine(unsigned char, unsigned char, unsigned char, unsigned char)':

sketch/U8glib.h:135: undefined reference to `u8g_DrawLine'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::drawBitmapP(unsigned char, unsigned char, unsigned char, unsigned char, unsigned char const*)':

sketch/U8glib.h:157: undefined reference to `u8g_DrawBitmapP'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setFont(unsigned char const*)':

sketch/U8glib.h:166: undefined reference to `u8g_font_courB14'

sketch/U8glib.h:166: undefined reference to `u8g_font_courB14'

sketch/U8glib.h:166: undefined reference to `u8g_SetFont'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setFontRefHeightExtendedText()':

sketch/U8glib.h:186: undefined reference to `u8g_SetFontRefHeightExtendedText'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setDefaultForegroundColor()':

sketch/U8glib.h:124: undefined reference to `u8g_SetDefaultForegroundColor'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setFontPosTop()':

sketch/U8glib.h:183: undefined reference to `u8g_SetFontPosTop'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setFont(unsigned char const*)':

sketch/U8glib.h:166: undefined reference to `u8g_font_fixed_v0'

sketch/U8glib.h:166: undefined reference to `u8g_font_fixed_v0'

sketch/U8glib.h:166: undefined reference to `u8g_SetFont'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setFontRefHeightExtendedText()':

sketch/U8glib.h:186: undefined reference to `u8g_SetFontRefHeightExtendedText'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setDefaultForegroundColor()':

sketch/U8glib.h:124: undefined reference to `u8g_SetDefaultForegroundColor'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setFontPosTop()':

sketch/U8glib.h:183: undefined reference to `u8g_SetFontPosTop'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::nextPage()':

sketch/U8glib.h:108: undefined reference to `u8g_NextPage'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::drawBitmapP(unsigned char, unsigned char, unsigned char, unsigned char, unsigned char const*)':

sketch/U8glib.h:157: undefined reference to `u8g_DrawBitmapP'

sketch/U8glib.h:157: undefined reference to `u8g_DrawBitmapP'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `write':

sketch/U8glib.h:93: undefined reference to `u8g_DrawGlyph'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `global constructors keyed to 65535_0_RetroWatchArduino_u8glib_no_button.ino.cpp.o.2333':

C:\Users\ShinHC\Desktop\arduino-nightly-windows\arduino-nightly\hardware\arduino\avr\cores\arduino/wiring_digital.c:159: undefined reference to `u8g_dev_ssd1306_128x64_i2c'

C:\Users\ShinHC\Desktop\arduino-nightly-windows\arduino-nightly\hardware\arduino\avr\cores\arduino/wiring_digital.c:159: undefined reference to `u8g_dev_ssd1306_128x64_i2c'

C:\Users\ShinHC\Desktop\arduino-nightly-windows\arduino-nightly\hardware\arduino\avr\cores\arduino/wiring_digital.c:159: undefined reference to `U8GLIB::initI2C(_u8g_dev_t*, unsigned char)'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setFont(unsigned char const*)':

sketch/U8glib.h:166: undefined reference to `u8g_font_courB14'

sketch/U8glib.h:166: undefined reference to `u8g_font_courB14'

sketch/U8glib.h:166: undefined reference to `u8g_SetFont'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setFontRefHeightExtendedText()':

sketch/U8glib.h:186: undefined reference to `u8g_SetFontRefHeightExtendedText'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setDefaultForegroundColor()':

sketch/U8glib.h:124: undefined reference to `u8g_SetDefaultForegroundColor'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setFontPosTop()':

sketch/U8glib.h:183: undefined reference to `u8g_SetFontPosTop'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setFont(unsigned char const*)':

sketch/U8glib.h:166: undefined reference to `u8g_font_courB14'

sketch/U8glib.h:166: undefined reference to `u8g_font_courB14'

sketch/U8glib.h:166: undefined reference to `u8g_SetFont'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setFontRefHeightExtendedText()':

sketch/U8glib.h:186: undefined reference to `u8g_SetFontRefHeightExtendedText'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setDefaultForegroundColor()':

sketch/U8glib.h:124: undefined reference to `u8g_SetDefaultForegroundColor'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setFontPosTop()':

sketch/U8glib.h:183: undefined reference to `u8g_SetFontPosTop'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::nextPage()':

sketch/U8glib.h:108: undefined reference to `u8g_NextPage'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::drawCircle(unsigned char, unsigned char, unsigned char, unsigned char)':

sketch/U8glib.h:142: undefined reference to `u8g_DrawCircle'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setFont(unsigned char const*)':

sketch/U8glib.h:166: undefined reference to `u8g_font_fixed_v0'

sketch/U8glib.h:166: undefined reference to `u8g_font_fixed_v0'

sketch/U8glib.h:166: undefined reference to `u8g_SetFont'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setFontRefHeightExtendedText()':

sketch/U8glib.h:186: undefined reference to `u8g_SetFontRefHeightExtendedText'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setDefaultForegroundColor()':

sketch/U8glib.h:124: undefined reference to `u8g_SetDefaultForegroundColor'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setFontPosTop()':

sketch/U8glib.h:183: undefined reference to `u8g_SetFontPosTop'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setFont(unsigned char const*)':

sketch/U8glib.h:166: undefined reference to `u8g_font_courB14'

sketch/U8glib.h:166: undefined reference to `u8g_font_courB14'

sketch/U8glib.h:166: undefined reference to `u8g_SetFont'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setFontRefHeightExtendedText()':

sketch/U8glib.h:186: undefined reference to `u8g_SetFontRefHeightExtendedText'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setDefaultForegroundColor()':

sketch/U8glib.h:124: undefined reference to `u8g_SetDefaultForegroundColor'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setFontPosTop()':

sketch/U8glib.h:183: undefined reference to `u8g_SetFontPosTop'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::drawCircle(unsigned char, unsigned char, unsigned char, unsigned char)':

sketch/U8glib.h:142: undefined reference to `u8g_DrawCircle'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::drawBitmapP(unsigned char, unsigned char, unsigned char, unsigned char, unsigned char const*)':

sketch/U8glib.h:157: undefined reference to `u8g_DrawBitmapP'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::getStrPixelWidth(char const*)':

sketch/U8glib.h:191: undefined reference to `u8g_GetStrPixelWidth'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setFont(unsigned char const*)':

sketch/U8glib.h:166: undefined reference to `u8g_font_fixed_v0'

sketch/U8glib.h:166: undefined reference to `u8g_font_fixed_v0'

sketch/U8glib.h:166: undefined reference to `u8g_SetFont'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setFontRefHeightExtendedText()':

sketch/U8glib.h:186: undefined reference to `u8g_SetFontRefHeightExtendedText'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setDefaultForegroundColor()':

sketch/U8glib.h:124: undefined reference to `u8g_SetDefaultForegroundColor'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setFontPosTop()':

sketch/U8glib.h:183: undefined reference to `u8g_SetFontPosTop'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::nextPage()':

sketch/U8glib.h:108: undefined reference to `u8g_NextPage'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::drawBitmapP(unsigned char, unsigned char, unsigned char, unsigned char, unsigned char const*)':

sketch/U8glib.h:157: undefined reference to `u8g_DrawBitmapP'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::getStrPixelWidth(char const*)':

sketch/U8glib.h:191: undefined reference to `u8g_GetStrPixelWidth'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setFont(unsigned char const*)':

sketch/U8glib.h:166: undefined reference to `u8g_font_fixed_v0'

sketch/U8glib.h:166: undefined reference to `u8g_font_fixed_v0'

sketch/U8glib.h:166: undefined reference to `u8g_SetFont'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setFontRefHeightExtendedText()':

sketch/U8glib.h:186: undefined reference to `u8g_SetFontRefHeightExtendedText'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setDefaultForegroundColor()':

sketch/U8glib.h:124: undefined reference to `u8g_SetDefaultForegroundColor'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setFontPosTop()':

sketch/U8glib.h:183: undefined reference to `u8g_SetFontPosTop'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::nextPage()':

sketch/U8glib.h:108: undefined reference to `u8g_NextPage'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setFont(unsigned char const*)':

sketch/U8glib.h:166: undefined reference to `u8g_font_courB14'

sketch/U8glib.h:166: undefined reference to `u8g_font_courB14'

sketch/U8glib.h:166: undefined reference to `u8g_SetFont'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setFontRefHeightExtendedText()':

sketch/U8glib.h:186: undefined reference to `u8g_SetFontRefHeightExtendedText'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setDefaultForegroundColor()':

sketch/U8glib.h:124: undefined reference to `u8g_SetDefaultForegroundColor'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::setFontPosTop()':

sketch/U8glib.h:183: undefined reference to `u8g_SetFontPosTop'

C:\Users\ShinHC\AppData\Local\Temp\ccuFUZlq.ltrans0.ltrans.o: In function `U8GLIB::nextPage()':

sketch/U8glib.h:108: undefined reference to `u8g_NextPage'

collect2.exe: error: ld returned 1 exit status

Multiple libraries were found for "SoftwareSerial.h"
Used: C:\Users\ShinHC\Desktop\arduino-nightly-windows\arduino-nightly\hardware\arduino\avr\libraries\SoftwareSerial
exit status 1
Error compiling for board Arduino Nano.

Can someone share APK file here? I am facing building it on Android Studio.

Thanks a ton!

Could you make a "The Division" Version?

Error exit 1

"TwoWire" Has not been declarated

Sent from my Redmi 5A using FastHub

On uno it is not uploading properly

when I want to upload the code 'clib/u8g.h' file error showing ..

Arduino: 1.8.19 (Windows 10), Board: "Arduino Pro or Pro Mini, ATmega328P (5V, 16 MHz)"

In file included from C:\Users\SEFATF~1\AppData\Local\Temp\arduino_modified_sketch_212439\RetroWatchArduino_u8glib_no_button.ino:32:0:

bitmap.h:1269:42: error: variable 'bitmap_array' must be const in order to be put into read-only section by means of 'attribute((progmem))'

PROGMEM const unsigned char*bitmap_array[] = {

                                      ^

RetroWatchArduino_u8glib_no_button:123:32: error: variable 'weekString' must be const in order to be put into read-only section by means of 'attribute((progmem))'

PROGMEM const char* weekString[] = {"", "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};

                            ^

RetroWatchArduino_u8glib_no_button:124:32: error: variable 'ampmString' must be const in order to be put into read-only section by means of 'attribute((progmem))'

PROGMEM const char* ampmString[] = {"AM", "PM"};

                            ^

RetroWatchArduino_u8glib_no_button:161:30: error: variable 'strIntro' must be const in order to be put into read-only section by means of 'attribute((progmem))'

PROGMEM const char* strIntro[] = {"Retro", "Watch", "Arduino v1.0"};

                          ^

exit status 1

variable 'bitmap_array' must be const in order to be put into read-only section by means of 'attribute((progmem))'

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

what should i do?

I have it wired correctly and the code compiles with no errors, however it only shows the Retro-watch boot screen and never continues to the clock.

Upon uploading the code, I get an error. Sorry in advance for the long copy and paste, but here's the message.

`
Arduino: 1.8.1 (Windows 10), Board: "Arduino/Genuino Uno"

In file included from C:\Users\TJ\Desktop\retrowatch-master\RetroWatch_Arduino\RetroWatchArduino_u8glib_no_button\RetroWatchArduino_u8glib_no_button.ino:32:0:

bitmap.h:1269: error: variable 'bitmap_array' must be const in order to be put into read-only section by means of 'attribute((progmem))'

PROGMEM const unsigned char* bitmap_array[] = {

                                       ^

RetroWatchArduino_u8glib_no_button:123: error: variable 'weekString' must be const in order to be put into read-only section by means of 'attribute((progmem))'

PROGMEM const char* weekString[] = {"", "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};

                            ^

RetroWatchArduino_u8glib_no_button:124: error: variable 'ampmString' must be const in order to be put into read-only section by means of 'attribute((progmem))'

PROGMEM const char* ampmString[] = {"AM", "PM"};

                            ^

RetroWatchArduino_u8glib_no_button:161: error: variable 'strIntro' must be const in order to be put into read-only section by means of 'attribute((progmem))'

PROGMEM const char* strIntro[] = {"Retro", "Watch", "Arduino v1.0"};

                          ^

exit status 1
variable 'bitmap_array' must be const in order to be put into read-only section by means of 'attribute((progmem))'

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
`

At first, my button (which I have made sure is working) had no response after I had uploaded the data from my android. I changed the values of isClicked thinking that was the issue but after I had made about 3 or 4 changes the only thing I could get it to do was cycle through the notifications, with no response from the button. I have a message on the Arduino IDE that low memory could be causing stability issues, perhaps that is the issue?

giving error. Wat should I do?