I recently bought an Adafruit PCF8523 RTC. When I try to run the suggested Adafruit example programs (File-Examples-RTC-PCF8523), I get the following error code:
Arduino: 1.8.9 (Windows 10), Board: "Adafruit Feather HUZZAH ESP8266, 80 MHz, Flash, Disabled (new aborts on oom), Disabled, All SSL ciphers (most compatible), 32KB cache + 32KB IRAM (balanced), Use pgm_read macros for IRAM/PROGMEM, 4MB (FS:2MB OTA:~1019KB), v2 Lower Memory, Disabled, None, Only Sketch, 115200"
C:\Program Files (x86)\Arduino\arduino-builder -dump-prefs -logger=machine -hardware C:\Program Files (x86)\Arduino\hardware -hardware C:\Users\Richard\AppData\Local\Arduino15\packages -tools C:\Program Files (x86)\Arduino\tools-builder -tools C:\Program Files (x86)\Arduino\hardware\tools\avr -tools C:\Users\Richard\AppData\Local\Arduino15\packages -built-in-libraries C:\Program Files (x86)\Arduino\libraries -libraries C:\Users\Richard\Documents\Arduino\libraries -fqbn=esp8266:esp8266:huzzah:xtal=80,vt=flash,exception=disabled,stacksmash=disabled,ssl=all,mmu=3232,non32xfer=fast,eesz=4M2M,ip=lm2f,dbg=Disabled,lvl=None____,wipe=none,baud=115200 -vid-pid=10C4_EA60 -ide-version=10809 -build-path C:\Users\Richard\AppData\Local\Temp\arduino_build_458947 -warnings=default -build-cache C:\Users\Richard\AppData\Local\Temp\arduino_cache_257403 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.mkspiffs.path=C:\Users\Richard\AppData\Local\Arduino15\packages\esp8266\tools\mkspiffs\3.0.4-gcc10.3-1757bed -prefs=runtime.tools.mkspiffs-3.0.4-gcc10.3-1757bed.path=C:\Users\Richard\AppData\Local\Arduino15\packages\esp8266\tools\mkspiffs\3.0.4-gcc10.3-1757bed -prefs=runtime.tools.xtensa-lx106-elf-gcc.path=C:\Users\Richard\AppData\Local\Arduino15\packages\esp8266\tools\xtensa-lx106-elf-gcc\3.0.4-gcc10.3-1757bed -prefs=runtime.tools.xtensa-lx106-elf-gcc-3.0.4-gcc10.3-1757bed.path=C:\Users\Richard\AppData\Local\Arduino15\packages\esp8266\tools\xtensa-lx106-elf-gcc\3.0.4-gcc10.3-1757bed -prefs=runtime.tools.mklittlefs.path=C:\Users\Richard\AppData\Local\Arduino15\packages\esp8266\tools\mklittlefs\3.0.4-gcc10.3-1757bed -prefs=runtime.tools.mklittlefs-3.0.4-gcc10.3-1757bed.path=C:\Users\Richard\AppData\Local\Arduino15\packages\esp8266\tools\mklittlefs\3.0.4-gcc10.3-1757bed -prefs=runtime.tools.python3.path=C:\Users\Richard\AppData\Local\Arduino15\packages\esp8266\tools\python3\3.7.2-post1 -prefs=runtime.tools.python3-3.7.2-post1.path=C:\Users\Richard\AppData\Local\Arduino15\packages\esp8266\tools\python3\3.7.2-post1 -verbose C:\Users\Richard\Documents\Arduino\libraries\arduino_42839\examples\pcf8523Countdown\pcf8523Countdown.ino
C:\Program Files (x86)\Arduino\arduino-builder -compile -logger=machine -hardware C:\Program Files (x86)\Arduino\hardware -hardware C:\Users\Richard\AppData\Local\Arduino15\packages -tools C:\Program Files (x86)\Arduino\tools-builder -tools C:\Program Files (x86)\Arduino\hardware\tools\avr -tools C:\Users\Richard\AppData\Local\Arduino15\packages -built-in-libraries C:\Program Files (x86)\Arduino\libraries -libraries C:\Users\Richard\Documents\Arduino\libraries -fqbn=esp8266:esp8266:huzzah:xtal=80,vt=flash,exception=disabled,stacksmash=disabled,ssl=all,mmu=3232,non32xfer=fast,eesz=4M2M,ip=lm2f,dbg=Disabled,lvl=None____,wipe=none,baud=115200 -vid-pid=10C4_EA60 -ide-version=10809 -build-path C:\Users\Richard\AppData\Local\Temp\arduino_build_458947 -warnings=default -build-cache C:\Users\Richard\AppData\Local\Temp\arduino_cache_257403 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.mkspiffs.path=C:\Users\Richard\AppData\Local\Arduino15\packages\esp8266\tools\mkspiffs\3.0.4-gcc10.3-1757bed -prefs=runtime.tools.mkspiffs-3.0.4-gcc10.3-1757bed.path=C:\Users\Richard\AppData\Local\Arduino15\packages\esp8266\tools\mkspiffs\3.0.4-gcc10.3-1757bed -prefs=runtime.tools.xtensa-lx106-elf-gcc.path=C:\Users\Richard\AppData\Local\Arduino15\packages\esp8266\tools\xtensa-lx106-elf-gcc\3.0.4-gcc10.3-1757bed -prefs=runtime.tools.xtensa-lx106-elf-gcc-3.0.4-gcc10.3-1757bed.path=C:\Users\Richard\AppData\Local\Arduino15\packages\esp8266\tools\xtensa-lx106-elf-gcc\3.0.4-gcc10.3-1757bed -prefs=runtime.tools.mklittlefs.path=C:\Users\Richard\AppData\Local\Arduino15\packages\esp8266\tools\mklittlefs\3.0.4-gcc10.3-1757bed -prefs=runtime.tools.mklittlefs-3.0.4-gcc10.3-1757bed.path=C:\Users\Richard\AppData\Local\Arduino15\packages\esp8266\tools\mklittlefs\3.0.4-gcc10.3-1757bed -prefs=runtime.tools.python3.path=C:\Users\Richard\AppData\Local\Arduino15\packages\esp8266\tools\python3\3.7.2-post1 -prefs=runtime.tools.python3-3.7.2-post1.path=C:\Users\Richard\AppData\Local\Arduino15\packages\esp8266\tools\python3\3.7.2-post1 -verbose C:\Users\Richard\Documents\Arduino\libraries\arduino_42839\examples\pcf8523Countdown\pcf8523Countdown.ino
Using board 'huzzah' from platform in folder: C:\Users\Richard\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2
Using core 'esp8266' from platform in folder: C:\Users\Richard\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2
Detecting libraries used...
"C:\\Users\\Richard\\AppData\\Local\\Arduino15\\packages\\esp8266\\tools\\xtensa-lx106-elf-gcc\\3.0.4-gcc10.3-1757bed/bin/xtensa-lx106-elf-g++" -D__ets__ -DICACHE_FLASH -U__STRICT_ANSI__ -D_GNU_SOURCE "-IC:\\Users\\Richard\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2/tools/sdk/include" "-IC:\\Users\\Richard\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2/tools/sdk/lwip2/include" "-IC:\\Users\\Richard\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2/tools/sdk/libc/xtensa-lx106-elf/include" "-IC:\\Users\\Richard\\AppData\\Local\\Temp\\arduino_build_458947/core" -c -w -Werror=return-type -Os -g -free -fipa-pta -mlongcalls -mtext-section-literals -fno-rtti -falign-functions=4 -std=gnu++17 -ffunction-sections -fdata-sections -fno-exceptions -DMMU_IRAM_SIZE=0x8000 -DMMU_ICACHE_SIZE=0x8000 -w -x c++ -E -CC -DNONOSDK22x_190703=1 -DF_CPU=80000000L -DLWIP_OPEN_SRC -DTCP_MSS=536 -DLWIP_FEATURES=1 -DLWIP_IPV6=0 -DARDUINO=10809 -DARDUINO_ESP8266_ADAFRUIT_HUZZAH -DARDUINO_ARCH_ESP8266 "-DARDUINO_BOARD=\"ESP8266_ADAFRUIT_HUZZAH\"" -DFLASHMODE_QIO -DESP8266 "-IC:\\Users\\Richard\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2\\cores\\esp8266" "-IC:\\Users\\Richard\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2\\variants\\adafruit" "C:\\Users\\Richard\\AppData\\Local\\Temp\\arduino_build_458947\\sketch\\pcf8523Countdown.ino.cpp" -o nul
"C:\\Users\\Richard\\AppData\\Local\\Arduino15\\packages\\esp8266\\tools\\xtensa-lx106-elf-gcc\\3.0.4-gcc10.3-1757bed/bin/xtensa-lx106-elf-g++" -D__ets__ -DICACHE_FLASH -U__STRICT_ANSI__ -D_GNU_SOURCE "-IC:\\Users\\Richard\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2/tools/sdk/include" "-IC:\\Users\\Richard\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2/tools/sdk/lwip2/include" "-IC:\\Users\\Richard\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2/tools/sdk/libc/xtensa-lx106-elf/include" "-IC:\\Users\\Richard\\AppData\\Local\\Temp\\arduino_build_458947/core" -c -w -Werror=return-type -Os -g -free -fipa-pta -mlongcalls -mtext-section-literals -fno-rtti -falign-functions=4 -std=gnu++17 -ffunction-sections -fdata-sections -fno-exceptions -DMMU_IRAM_SIZE=0x8000 -DMMU_ICACHE_SIZE=0x8000 -w -x c++ -E -CC -DNONOSDK22x_190703=1 -DF_CPU=80000000L -DLWIP_OPEN_SRC -DTCP_MSS=536 -DLWIP_FEATURES=1 -DLWIP_IPV6=0 -DARDUINO=10809 -DARDUINO_ESP8266_ADAFRUIT_HUZZAH -DARDUINO_ARCH_ESP8266 "-DARDUINO_BOARD=\"ESP8266_ADAFRUIT_HUZZAH\"" -DFLASHMODE_QIO -DESP8266 "-IC:\\Users\\Richard\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2\\cores\\esp8266" "-IC:\\Users\\Richard\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2\\variants\\adafruit" "-IC:\\Users\\Richard\\Documents\\Arduino\\libraries\\RTClib\\src" "C:\\Users\\Richard\\AppData\\Local\\Temp\\arduino_build_458947\\sketch\\pcf8523Countdown.ino.cpp" -o nul
**strong text**Multiple libraries were found for "RTClib.h"**strong text**
Used: C:\Users\Richard\Documents\Arduino\libraries\RTClib
Not used: C:\Users\Richard\Documents\Arduino\libraries\arduino_42839
Not used: C:\Users\Richard\Documents\Arduino\libraries\arduino_40284
In file included from C:\Users\Richard\Documents\Arduino\libraries\arduino_42839\examples\pcf8523Countdown\pcf8523Countdown.ino:23:
**strong text**C:\Users\Richard\Documents\Arduino\libraries\RTClib\src/RTClib.h:25:10: fatal error: Adafruit_I2CDevice.h: No such file or directory
25 | #include <Adafruit_I2CDevice.h>
| ^~~~~~~~~~~~~~~~~~~~~~
compilation terminated.**strong text**
Using library RTClib at version 1.2.1 in folder: C:\Users\Richard\Documents\Arduino\libraries\RTClib
exit status 1
Error compiling for board Adafruit Feather HUZZAH ESP8266.
There are two examples of the use of the PCF8523 in Examples; neither worked.
I could find no library labeled <Adafruit_I2CDevice.h> either in the Arduino Library Manager or on GitHub.
An "I2C Scanner" sketch found no device (not surprising).
Adding #include<Wire.h> did not help.
I deleted all RTC libraries other than RTClib by Adafruit and restarted, soUse code tags to format code for the forum I don't understand the comment about multiple versions of the library. The device is wire correctly to SCL and SDA on the Feather HUZZAH board and has 3.2 VDC applied.
Thank you for any help or suggestions.
R
