Final version 1:

reads data every 15 minutes
saves data persistently every 24h
writes out the contents every measure.
goes in deep sleep so very low power consumption. (reason removal task system)

build/build.ninja

@@ -1916,7 +1916,7 @@ build esp-idf/partition_table/CMakeFiles/partition_table-flash | ${cmake_ninja_w
 build cmake_object_order_depends_target___idf_esp_app_format: phony || cmake_object_order_depends_target___idf_esp_bootloader_format
 
 build esp-idf/esp_app_format/CMakeFiles/__idf_esp_app_format.dir/esp_app_desc.c.obj: C_COMPILER____idf_esp_app_format_unscanned_ /home/douwe/.espressif/v6.0/esp-idf/components/esp_app_format/esp_app_desc.c || cmake_object_order_depends_target___idf_esp_app_format
-  DEFINES = -DESP_PLATFORM -DIDF_VER=\"v6.0\" -DSOC_MMU_PAGE_SIZE=CONFIG_MMU_PAGE_SIZE -DSOC_XTAL_FREQ_MHZ=CONFIG_XTAL_FREQ -D_GLIBCXX_HAVE_POSIX_SEMAPHORE -D_GLIBCXX_USE_POSIX_SEMAPHORE -D_GNU_SOURCE -D_POSIX_READER_WRITER_LOCKS -D PROJECT_NAME=\"dht11_reader\" -DPROJECT_VER=\"9b31240-dirty\"
+  DEFINES = -DESP_PLATFORM -DIDF_VER=\"v6.0\" -DSOC_MMU_PAGE_SIZE=CONFIG_MMU_PAGE_SIZE -DSOC_XTAL_FREQ_MHZ=CONFIG_XTAL_FREQ -D_GLIBCXX_HAVE_POSIX_SEMAPHORE -D_GLIBCXX_USE_POSIX_SEMAPHORE -D_GNU_SOURCE -D_POSIX_READER_WRITER_LOCKS -D PROJECT_NAME=\"dht11_reader\" -DPROJECT_VER=\"1d246d6-dirty\"
   DEP_FILE = esp-idf/esp_app_format/CMakeFiles/__idf_esp_app_format.dir/esp_app_desc.c.obj.d
   FLAGS = @"/mnt/douwe/hdd/Projects/SerreklimaatSensor/build/toolchain/cflags" -fdiagnostics-color=always -ffunction-sections -fdata-sections -Wall -Werror -Wno-error=unused-function -Wno-error=unused-variable -Wno-error=unused-but-set-variable -Wno-error=deprecated-declarations -Wextra -Wno-error=extra -Wno-unused-parameter -Wno-sign-compare -Wno-enum-conversion -gdwarf-4 -ggdb -Og -fno-shrink-wrap -fmacro-prefix-map=/mnt/douwe/hdd/Projects/SerreklimaatSensor=. -fmacro-prefix-map=/home/douwe/.espressif/v6.0/esp-idf=/IDF -fstrict-volatile-bitfields -fno-jump-tables -fno-tree-switch-conversion -std=gnu23 -Wno-old-style-declaration -fzero-init-padding-bits=all -fno-malloc-dce
   INCLUDES = -I/mnt/douwe/hdd/Projects/SerreklimaatSensor/build/config -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_app_format/include -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_libc/platform_include -I/home/douwe/.espressif/v6.0/esp-idf/components/freertos/config/include -I/home/douwe/.espressif/v6.0/esp-idf/components/freertos/config/include/freertos -I/home/douwe/.espressif/v6.0/esp-idf/components/freertos/config/riscv/include -I/home/douwe/.espressif/v6.0/esp-idf/components/freertos/FreeRTOS-Kernel/include -I/home/douwe/.espressif/v6.0/esp-idf/components/freertos/FreeRTOS-Kernel/portable/riscv/include -I/home/douwe/.espressif/v6.0/esp-idf/components/freertos/FreeRTOS-Kernel/portable/riscv/include/freertos -I/home/douwe/.espressif/v6.0/esp-idf/components/freertos/esp_additions/include -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_hw_support/include -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_hw_support/include/soc -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_hw_support/ldo/include -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_hw_support/debug_probe/include -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_hw_support/etm/include -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_hw_support/mspi_timing_tuning/include -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_hw_support/mspi_timing_tuning/tuning_scheme_impl/include -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_hw_support/power_supply/include -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_hw_support/modem/include -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_hw_support/include/soc/esp32c3 -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_hw_support/port/esp32c3/. -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_hw_support/port/esp32c3/include -I/home/douwe/.espressif/v6.0/esp-idf/components/heap/include -I/home/douwe/.espressif/v6.0/esp-idf/components/heap/tlsf -I/home/douwe/.espressif/v6.0/esp-idf/components/log/include -I/home/douwe/.espressif/v6.0/esp-idf/components/soc/include -I/home/douwe/.espressif/v6.0/esp-idf/components/soc/esp32c3 -I/home/douwe/.espressif/v6.0/esp-idf/components/soc/esp32c3/include -I/home/douwe/.espressif/v6.0/esp-idf/components/soc/esp32c3/register -I/home/douwe/.espressif/v6.0/esp-idf/components/hal/platform_port/include -I/home/douwe/.espressif/v6.0/esp-idf/components/hal/esp32c3/include -I/home/douwe/.espressif/v6.0/esp-idf/components/hal/include -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_rom/include -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_rom/esp32c3/include -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_rom/esp32c3/include/esp32c3 -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_rom/esp32c3 -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_common/include -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_system/include -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_system/port/soc -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_system/port/include/riscv -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_system/port/include/private -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_stdio/include -I/home/douwe/.espressif/v6.0/esp-idf/components/riscv/include -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_hal_gpio/include -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_hal_gpio/esp32c3/include -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_hal_usb/include -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_hal_usb/esp32c3/include -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_hal_pmu/include -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_hal_pmu/esp32c3/include -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_hal_ana_conv/include -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_hal_ana_conv/esp32c3/include -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_hal_dma/include -I/home/douwe/.espressif/v6.0/esp-idf/components/esp_hal_dma/esp32c3/include