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WS2812B LED not working with ESP32 CP2102 on GPIO2/5/13/35 – wiring or code issue?

cototo1991 264 12
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  • #1 21622472
    cototo1991
    Level 3  
    Good,

    I started to make myself an "automatic vodka dispenser" and I have almost everything ready, only I have a problem with the leds (WS2812 Link to ali ), neither chinese nor american AI could help me so I decided to create an account here and ask, maybe someone will have an idea. I did something similar on tinkercad.com (the same leds I also tried on my esp32 cp2102). Exactly the same wired leds, the only difference is in esp I tried GPIO2, 5, 13 and 35 no and only one led and on tinkercad it works.... I tried through the capacitor and resistor alone, then through the 74AHCT125 hoping it would work but to no avail, the diode only lit up when I shorted the DIN to GND or when I quickly switched from gnd to din at the diode itself, the faster I did it the brighter it lit up (different colour but still) and I have no idea, maybe someone here can help 🤮.

    admittedly, the project works well without leds, but still, it would be nice if there was such a signalling...


    Wiring diagram of an ESP32 module connected to a single WS2812B LED, showing power, ground, and data connections. .

    AI: How exactly do you power these leds? From what voltage, is the ground of the ESP32 and the leds definitely common, and do you power them directly from the ESP or from a separate power supply? .
    everything as in the picture
    AI: What code/library are you using to control these WS2812B? Can you throw in the code snippet you are trying to fire them with? .
    Code: text Expand Select all Copy to clipboard
    #include <Adafruit_NeoPixel.h>

#define LED_PIN    2
#define LED_COUNT  1

Adafruit_NeoPixel strip(LED_COUNT, LED_PIN, NEO_GRB + NEO_KHZ800);

void setup() {
  strip.begin();
  strip.show(); // Wyłącz wszystkie LED-y na start
  delay(1000);

  // Test kolorów po kolei
  strip.setPixelColor(0, strip.Color(255, 0, 0)); // Czerwony
  strip.show();
  delay(1000);

  strip.setPixelColor(0, strip.Color(0, 255, 0)); // Zielony
  strip.show();
  delay(1000);

  strip.setPixelColor(0, strip.Color(0, 0, 255)); // Niebieski
  strip.show();
  delay(1000);

  strip.setPixelColor(0, strip.Color(255, 255, 0)); // Żółty
  strip.show();
  delay(1000);

  strip.setPixelColor(0, strip.Color(0, 0, 0)); // Wyłącz
  strip.show();
}

void loop() {
}

LUB:
#include <Adafruit_NeoPixel.h>

#define LED_PIN 13
#define LED_COUNT 1

Adafruit_NeoPixel strip(LED_COUNT, LED_PIN, NEO_GRB + NEO_KHZ800);

void setup() {
  Serial.begin(115200);
  strip.begin();
  strip.show(); // Wyłącz wszystkie LED
  delay(1000);

  strip.setPixelColor(0, strip.Color(255, 0, 0)); // Czerwony
  strip.show();
}

void loop() {}
    .
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  • #2 21622564
    cototo1991
    Level 3  
    Thanks, I threw in, changed to 1 diode and a total of 3 different pins (2, 4 and 15) and also zero response, I switched everything on short (burble I know)
    WS2812B LED not working with ESP32 CP2102 on GPIO2/5/13/35 – wiring or code issue? .
    The only response is when I unplug and plug it in again, it lights up very faintly, but that too is rare
    WS2812B LED not working with ESP32 CP2102 on GPIO2/5/13/35 – wiring or code issue? .
    I have checked other LEDs from the strip and they respond in the same way
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  • #3 21622584
    cototo1991
    Level 3  
    tos18 wrote:
    how many leds are all in the strip/circuit ?
    .
    There is one led on the strip I'm testing (I've cut it off), but overall there are 60 in 1m.
    tos18 wrote:
    Which gpio is the control pin connected to ?
    .
    Currently in GPIO4 (D4).
    tos18 wrote:
    Don't connect in the middle of the circuit just at the beginning - hope you didn't damage the diode.
    .
    So just put the resistor into the GPIO? I've already tried giving the resistor itself between D4 and DIN (without wires), but same thing.
    PS. I don't give to the contact board because I have all the other parts there, I just don't want to unplug it 🤐.
  • #4 21622621
    cototo1991
    Level 3  
    tos18 wrote:
    Try using my program.
    It is set to 30 LEDs and GPIO14
    .
    "Thanks, I've uploaded, changed to 1 LED and a total of 3 different pins (2, 4 and 15) and also zero response, I've switched everything on short (burble I know)" I've tried, I've switched myself to 1 LED and GPIO4 (then put it on 14) but I know it works for sure because on Tinkercad it worked. I'll check this "Cheating At 5V" and let you know.

    Unfortunately it didn't work either, now I tried it with the whole tape ....
    WS2812B LED not working with ESP32 CP2102 on GPIO2/5/13/35 – wiring or code issue? .
  • #5 21623040
    gps79
    Level 36  
    The pin numbers are not the same as their names in Arduino. You want to use D5, then declare it that way:
    Code: C / C++
    Log in, to see the code
    .
    If this is not enough, then reduce the data rate to the LEDs as follows:
    Code: C / C++
    Log in, to see the code
    .
    A series resistor on the data line is recommended. It must not have too high a value. 100-500Ohm should be OK.

    If this does not help, for analysis:
    1. send a clear photo of the microcontroller board so we know exactly what model you have.
    2. additionally, we don't know which platform (in Arduino) you are building your code from and which LED library you are using. Enable the Arduino IDE to print additional build and upload information:

    Close-up of a microcontroller board connected by wires to a USB port, placed on a white background. .
    and paste us the build and upload log.
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  • #6 21623261
    cototo1991
    Level 3  
    gps79 wrote:
    Pin numbers are not the same as their names in Arduino. You want to use D5, then declare it this way:
    Code: C / C++ Expand Select All Copy to clipboard#define LED_PIN D5
    .
    compiler doesn't move on because D is not valid
    gps79 wrote:
    1. send a clear photo of the microcontroller board so we know exactly what model you have.
    2. additionally, we don't know which platform (in Arduino) you are building your code from and which LED library you are using. Enable the Arduino IDE to print additional build and upload information:


    and paste the build and upload log for us.

    Code: text Expand Select all Copy to clipboard
    arduino-builder -dump-prefs -logger=machine -hardware /usr/share/arduino/hardware -hardware /home/darkmix/.arduino15/packages -tools /usr/share/arduino/hardware/tools/avr -tools /home/darkmix/.arduino15/packages -libraries /home/darkmix/Arduino/libraries -fqbn=esp32:esp32:esp32:JTAGAdapter=default,PSRAM=disabled,PartitionScheme=default,CPUFreq=240,FlashMode=qio,FlashFreq=80,FlashSize=4M,UploadSpeed=115200,LoopCore=1,EventsCore=1,DebugLevel=none,EraseFlash=none,ZigbeeMode=default -vid-pid=10C4_EA60 -ide-version=10819 -build-path /tmp/arduino_build_385637 -warnings=none -build-cache /tmp/arduino_cache_950965 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.xtensa-esp-elf-gdb.path=/home/darkmix/.arduino15/packages/esp32/tools/xtensa-esp-elf-gdb/14.2_20240403 -prefs=runtime.tools.xtensa-esp-elf-gdb-14.2_20240403.path=/home/darkmix/.arduino15/packages/esp32/tools/xtensa-esp-elf-gdb/14.2_20240403 -prefs=runtime.tools.mkspiffs.path=/home/darkmix/.arduino15/packages/esp32/tools/mkspiffs/0.2.3 -prefs=runtime.tools.mkspiffs-0.2.3.path=/home/darkmix/.arduino15/packages/esp32/tools/mkspiffs/0.2.3 -prefs=runtime.tools.esp32-arduino-libs.path=/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1 -prefs=runtime.tools.esp32-arduino-libs-idf-release_v5.4-2f7dcd86-v1.path=/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1 -prefs=runtime.tools.riscv32-esp-elf-gdb.path=/home/darkmix/.arduino15/packages/esp32/tools/riscv32-esp-elf-gdb/14.2_20240403 -prefs=runtime.tools.riscv32-esp-elf-gdb-14.2_20240403.path=/home/darkmix/.arduino15/packages/esp32/tools/riscv32-esp-elf-gdb/14.2_20240403 -prefs=runtime.tools.esp-rv32.path=/home/darkmix/.arduino15/packages/esp32/tools/esp-rv32/2411 -prefs=runtime.tools.esp-rv32-2411.path=/home/darkmix/.arduino15/packages/esp32/tools/esp-rv32/2411 -prefs=runtime.tools.mklittlefs.path=/home/darkmix/.arduino15/packages/esp32/tools/mklittlefs/3.0.0-gnu12-dc7f933 -prefs=runtime.tools.mklittlefs-3.0.0-gnu12-dc7f933.path=/home/darkmix/.arduino15/packages/esp32/tools/mklittlefs/3.0.0-gnu12-dc7f933 -prefs=runtime.tools.esp-x32.path=/home/darkmix/.arduino15/packages/esp32/tools/esp-x32/2411 -prefs=runtime.tools.esp-x32-2411.path=/home/darkmix/.arduino15/packages/esp32/tools/esp-x32/2411 -prefs=runtime.tools.openocd-esp32.path=/home/darkmix/.arduino15/packages/esp32/tools/openocd-esp32/v0.12.0-esp32-20241016 -prefs=runtime.tools.openocd-esp32-v0.12.0-esp32-20241016.path=/home/darkmix/.arduino15/packages/esp32/tools/openocd-esp32/v0.12.0-esp32-20241016 -prefs=runtime.tools.esptool_py.path=/home/darkmix/.arduino15/packages/esp32/tools/esptool_py/4.9.dev3 -prefs=runtime.tools.esptool_py-4.9.dev3.path=/home/darkmix/.arduino15/packages/esp32/tools/esptool_py/4.9.dev3 -prefs=runtime.tools.dfu-util.path=/home/darkmix/.arduino15/packages/arduino/tools/dfu-util/0.11.0-arduino5 -prefs=runtime.tools.dfu-util-0.11.0-arduino5.path=/home/darkmix/.arduino15/packages/arduino/tools/dfu-util/0.11.0-arduino5 -verbose /tmp/arduino_modified_sketch_460535/strandtest.ino
arduino-builder -compile -logger=machine -hardware /usr/share/arduino/hardware -hardware /home/darkmix/.arduino15/packages -tools /usr/share/arduino/hardware/tools/avr -tools /home/darkmix/.arduino15/packages -libraries /home/darkmix/Arduino/libraries -fqbn=esp32:esp32:esp32:JTAGAdapter=default,PSRAM=disabled,PartitionScheme=default,CPUFreq=240,FlashMode=qio,FlashFreq=80,FlashSize=4M,UploadSpeed=115200,LoopCore=1,EventsCore=1,DebugLevel=none,EraseFlash=none,ZigbeeMode=default -vid-pid=10C4_EA60 -ide-version=10819 -build-path /tmp/arduino_build_385637 -warnings=none -build-cache /tmp/arduino_cache_950965 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.xtensa-esp-elf-gdb.path=/home/darkmix/.arduino15/packages/esp32/tools/xtensa-esp-elf-gdb/14.2_20240403 -prefs=runtime.tools.xtensa-esp-elf-gdb-14.2_20240403.path=/home/darkmix/.arduino15/packages/esp32/tools/xtensa-esp-elf-gdb/14.2_20240403 -prefs=runtime.tools.mkspiffs.path=/home/darkmix/.arduino15/packages/esp32/tools/mkspiffs/0.2.3 -prefs=runtime.tools.mkspiffs-0.2.3.path=/home/darkmix/.arduino15/packages/esp32/tools/mkspiffs/0.2.3 -prefs=runtime.tools.esp32-arduino-libs.path=/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1 -prefs=runtime.tools.esp32-arduino-libs-idf-release_v5.4-2f7dcd86-v1.path=/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1 -prefs=runtime.tools.riscv32-esp-elf-gdb.path=/home/darkmix/.arduino15/packages/esp32/tools/riscv32-esp-elf-gdb/14.2_20240403 -prefs=runtime.tools.riscv32-esp-elf-gdb-14.2_20240403.path=/home/darkmix/.arduino15/packages/esp32/tools/riscv32-esp-elf-gdb/14.2_20240403 -prefs=runtime.tools.esp-rv32.path=/home/darkmix/.arduino15/packages/esp32/tools/esp-rv32/2411 -prefs=runtime.tools.esp-rv32-2411.path=/home/darkmix/.arduino15/packages/esp32/tools/esp-rv32/2411 -prefs=runtime.tools.mklittlefs.path=/home/darkmix/.arduino15/packages/esp32/tools/mklittlefs/3.0.0-gnu12-dc7f933 -prefs=runtime.tools.mklittlefs-3.0.0-gnu12-dc7f933.path=/home/darkmix/.arduino15/packages/esp32/tools/mklittlefs/3.0.0-gnu12-dc7f933 -prefs=runtime.tools.esp-x32.path=/home/darkmix/.arduino15/packages/esp32/tools/esp-x32/2411 -prefs=runtime.tools.esp-x32-2411.path=/home/darkmix/.arduino15/packages/esp32/tools/esp-x32/2411 -prefs=runtime.tools.openocd-esp32.path=/home/darkmix/.arduino15/packages/esp32/tools/openocd-esp32/v0.12.0-esp32-20241016 -prefs=runtime.tools.openocd-esp32-v0.12.0-esp32-20241016.path=/home/darkmix/.arduino15/packages/esp32/tools/openocd-esp32/v0.12.0-esp32-20241016 -prefs=runtime.tools.esptool_py.path=/home/darkmix/.arduino15/packages/esp32/tools/esptool_py/4.9.dev3 -prefs=runtime.tools.esptool_py-4.9.dev3.path=/home/darkmix/.arduino15/packages/esp32/tools/esptool_py/4.9.dev3 -prefs=runtime.tools.dfu-util.path=/home/darkmix/.arduino15/packages/arduino/tools/dfu-util/0.11.0-arduino5 -prefs=runtime.tools.dfu-util-0.11.0-arduino5.path=/home/darkmix/.arduino15/packages/arduino/tools/dfu-util/0.11.0-arduino5 -verbose /tmp/arduino_modified_sketch_460535/strandtest.ino
Using board 'esp32' from platform in folder: /home/darkmix/.arduino15/packages/esp32/hardware/esp32/3.2.0
Using core 'esp32' from platform in folder: /home/darkmix/.arduino15/packages/esp32/hardware/esp32/3.2.0
UWAGA: Kategoria 'Sound' w bibliotece ESP_I2S jest nieprawidłowa. Ustawiono na 'Uncategorized'
UWAGA: Kategoria 'Sensor' w bibliotece ESP_NOW jest nieprawidłowa. Ustawiono na 'Uncategorized'
UWAGA: Kategoria 'Sound' w bibliotece ESP_SR jest nieprawidłowa. Ustawiono na 'Uncategorized'
UWAGA: Kategoria '' w bibliotece ESP Insights jest nieprawidłowa. Ustawiono na 'Uncategorized'
UWAGA: Kategoria '' w bibliotece ESP RainMaker jest nieprawidłowa. Ustawiono na 'Uncategorized'
UWAGA: Kategoria '' w bibliotece TFLite Micro jest nieprawidłowa. Ustawiono na 'Uncategorized'
UWAGA: Kategoria '' w bibliotece WiFiProv jest nieprawidłowa. Ustawiono na 'Uncategorized'
/usr/bin/env bash -c "[ ! -f "/tmp/arduino_modified_sketch_460535"/partitions.csv ] || cp -f "/tmp/arduino_modified_sketch_460535"/partitions.csv "/tmp/arduino_build_385637"/partitions.csv"
/usr/bin/env bash -c "[ -f "/tmp/arduino_build_385637"/partitions.csv ] || [ ! -f "/home/darkmix/.arduino15/packages/esp32/hardware/esp32/3.2.0/variants/esp32"/partitions.csv ] || cp "/home/darkmix/.arduino15/packages/esp32/hardware/esp32/3.2.0/variants/esp32"/partitions.csv "/tmp/arduino_build_385637"/partitions.csv"
/usr/bin/env bash -c "[ -f "/tmp/arduino_build_385637"/partitions.csv ] || cp "/home/darkmix/.arduino15/packages/esp32/hardware/esp32/3.2.0"/tools/partitions/default.csv "/tmp/arduino_build_385637"/partitions.csv"
/usr/bin/env bash -c "[ -f "/tmp/arduino_modified_sketch_460535"/bootloader.bin ] && cp -f "/tmp/arduino_modified_sketch_460535"/bootloader.bin "/tmp/arduino_build_385637"/strandtest.ino.bootloader.bin || ( [ -f "/home/darkmix/.arduino15/packages/esp32/hardware/esp32/3.2.0/variants/esp32"/bootloader.bin ] && cp "/home/darkmix/.arduino15/packages/esp32/hardware/esp32/3.2.0/variants/esp32"/bootloader.bin "/tmp/arduino_build_385637"/strandtest.ino.bootloader.bin || "/home/darkmix/.arduino15/packages/esp32/tools/esptool_py/4.9.dev3"/esptool --chip esp32 elf2image --flash_mode dio --flash_freq 80m --flash_size 4MB -o "/tmp/arduino_build_385637"/strandtest.ino.bootloader.bin "/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1/esp32"/bin/bootloader_qio_80m.elf )"
esptool.py v4.8.1
Creating esp32 image...
Merged 2 ELF sections
Successfully created esp32 image.
/usr/bin/env bash -c "[ ! -f "/tmp/arduino_modified_sketch_460535"/build_opt.h ] || cp -f "/tmp/arduino_modified_sketch_460535"/build_opt.h "/tmp/arduino_build_385637"/build_opt.h"
/usr/bin/env bash -c "[ -f "/tmp/arduino_build_385637"/build_opt.h ] || : > "/tmp/arduino_build_385637"/build_opt.h"
/usr/bin/env bash -c ": > '/tmp/arduino_build_385637/file_opts'"
/usr/bin/env bash -c "cp -f "/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1/esp32"/sdkconfig "/tmp/arduino_build_385637"/sdkconfig"
Detecting libraries used...
"/home/darkmix/.arduino15/packages/esp32/tools/esp-x32/2411/bin/xtensa-esp32-elf-g++"   -c "@/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1/esp32/flags/cpp_flags" -w -Os -Werror=return-type -w -x c++ -E -CC -DF_CPU=240000000L -DARDUINO=10819 -DARDUINO_ESP32_DEV -DARDUINO_ARCH_ESP32 -DARDUINO_BOARD="ESP32_DEV" -DARDUINO_VARIANT="esp32" -DARDUINO_PARTITION_default -DARDUINO_HOST_OS="linux" -DARDUINO_FQBN="esp32:esp32:esp32:JTAGAdapter=default,PSRAM=disabled,PartitionScheme=default,CPUFreq=240,FlashMode=qio,FlashFreq=80,FlashSize=4M,UploadSpeed=115200,LoopCore=1,EventsCore=1,DebugLevel=none,EraseFlash=none,ZigbeeMode=default" -DESP32=ESP32 -DCORE_DEBUG_LEVEL=0 -DARDUINO_RUNNING_CORE=1 -DARDUINO_EVENT_RUNNING_CORE=1  -DARDUINO_USB_CDC_ON_BOOT=0  "@/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1/esp32/flags/defines" "-I/tmp/arduino_modified_sketch_460535" -iprefix "/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1/esp32/include/" "@/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1/esp32/flags/includes" "-I/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1/esp32/qio_qspi/include" "-I/home/darkmix/.arduino15/packages/esp32/hardware/esp32/3.2.0/cores/esp32" "-I/home/darkmix/.arduino15/packages/esp32/hardware/esp32/3.2.0/variants/esp32" "@/tmp/arduino_build_385637/build_opt.h" "@/tmp/arduino_build_385637/file_opts" "/tmp/arduino_build_385637/sketch/strandtest.ino.cpp" -o "/dev/null"
"/home/darkmix/.arduino15/packages/esp32/tools/esp-x32/2411/bin/xtensa-esp32-elf-g++"   -c "@/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1/esp32/flags/cpp_flags" -w -Os -Werror=return-type -w -x c++ -E -CC -DF_CPU=240000000L -DARDUINO=10819 -DARDUINO_ESP32_DEV -DARDUINO_ARCH_ESP32 -DARDUINO_BOARD="ESP32_DEV" -DARDUINO_VARIANT="esp32" -DARDUINO_PARTITION_default -DARDUINO_HOST_OS="linux" -DARDUINO_FQBN="esp32:esp32:esp32:JTAGAdapter=default,PSRAM=disabled,PartitionScheme=default,CPUFreq=240,FlashMode=qio,FlashFreq=80,FlashSize=4M,UploadSpeed=115200,LoopCore=1,EventsCore=1,DebugLevel=none,EraseFlash=none,ZigbeeMode=default" -DESP32=ESP32 -DCORE_DEBUG_LEVEL=0 -DARDUINO_RUNNING_CORE=1 -DARDUINO_EVENT_RUNNING_CORE=1  -DARDUINO_USB_CDC_ON_BOOT=0  "@/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1/esp32/flags/defines" "-I/tmp/arduino_modified_sketch_460535" -iprefix "/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1/esp32/include/" "@/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1/esp32/flags/includes" "-I/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1/esp32/qio_qspi/include" "-I/home/darkmix/.arduino15/packages/esp32/hardware/esp32/3.2.0/cores/esp32" "-I/home/darkmix/.arduino15/packages/esp32/hardware/esp32/3.2.0/variants/esp32" "-I/home/darkmix/Arduino/libraries/Adafruit_NeoPixel" "@/tmp/arduino_build_385637/build_opt.h" "@/tmp/arduino_build_385637/file_opts" "/tmp/arduino_build_385637/sketch/strandtest.ino.cpp" -o "/dev/null"
Using cached library dependencies for file: /home/darkmix/Arduino/libraries/Adafruit_NeoPixel/Adafruit_NeoPixel.cpp
Using cached library dependencies for file: /home/darkmix/Arduino/libraries/Adafruit_NeoPixel/Adafruit_Neopixel_RP2.cpp
Using cached library dependencies for file: /home/darkmix/Arduino/libraries/Adafruit_NeoPixel/esp.c
Using cached library dependencies for file: /home/darkmix/Arduino/libraries/Adafruit_NeoPixel/esp8266.c
Using cached library dependencies for file: /home/darkmix/Arduino/libraries/Adafruit_NeoPixel/kendyte_k210.c
Generating function prototypes...
"/home/darkmix/.arduino15/packages/esp32/tools/esp-x32/2411/bin/xtensa-esp32-elf-g++"   -c "@/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1/esp32/flags/cpp_flags" -w -Os -Werror=return-type -w -x c++ -E -CC -DF_CPU=240000000L -DARDUINO=10819 -DARDUINO_ESP32_DEV -DARDUINO_ARCH_ESP32 -DARDUINO_BOARD="ESP32_DEV" -DARDUINO_VARIANT="esp32" -DARDUINO_PARTITION_default -DARDUINO_HOST_OS="linux" -DARDUINO_FQBN="esp32:esp32:esp32:JTAGAdapter=default,PSRAM=disabled,PartitionScheme=default,CPUFreq=240,FlashMode=qio,FlashFreq=80,FlashSize=4M,UploadSpeed=115200,LoopCore=1,EventsCore=1,DebugLevel=none,EraseFlash=none,ZigbeeMode=default" -DESP32=ESP32 -DCORE_DEBUG_LEVEL=0 -DARDUINO_RUNNING_CORE=1 -DARDUINO_EVENT_RUNNING_CORE=1  -DARDUINO_USB_CDC_ON_BOOT=0  "@/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1/esp32/flags/defines" "-I/tmp/arduino_modified_sketch_460535" -iprefix "/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1/esp32/include/" "@/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1/esp32/flags/includes" "-I/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1/esp32/qio_qspi/include" "-I/home/darkmix/.arduino15/packages/esp32/hardware/esp32/3.2.0/cores/esp32" "-I/home/darkmix/.arduino15/packages/esp32/hardware/esp32/3.2.0/variants/esp32" "-I/home/darkmix/Arduino/libraries/Adafruit_NeoPixel" "@/tmp/arduino_build_385637/build_opt.h" "@/tmp/arduino_build_385637/file_opts" "/tmp/arduino_build_385637/sketch/strandtest.ino.cpp" -o "/tmp/arduino_build_385637/preproc/ctags_target_for_gcc_minus_e.cpp"
"/usr/bin/arduino-ctags" -u --language-force=c++ -f - --c++-kinds=svpf --fields=KSTtzns --line-directives "/tmp/arduino_build_385637/preproc/ctags_target_for_gcc_minus_e.cpp"
Kompilowanie szkicu...
"/home/darkmix/.arduino15/packages/esp32/tools/esp-x32/2411/bin/xtensa-esp32-elf-g++"  -MMD -c "@/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1/esp32/flags/cpp_flags" -w -Os -Werror=return-type -DF_CPU=240000000L -DARDUINO=10819 -DARDUINO_ESP32_DEV -DARDUINO_ARCH_ESP32 -DARDUINO_BOARD="ESP32_DEV" -DARDUINO_VARIANT="esp32" -DARDUINO_PARTITION_default -DARDUINO_HOST_OS="linux" -DARDUINO_FQBN="esp32:esp32:esp32:JTAGAdapter=default,PSRAM=disabled,PartitionScheme=default,CPUFreq=240,FlashMode=qio,FlashFreq=80,FlashSize=4M,UploadSpeed=115200,LoopCore=1,EventsCore=1,DebugLevel=none,EraseFlash=none,ZigbeeMode=default" -DESP32=ESP32 -DCORE_DEBUG_LEVEL=0 -DARDUINO_RUNNING_CORE=1 -DARDUINO_EVENT_RUNNING_CORE=1  -DARDUINO_USB_CDC_ON_BOOT=0  "@/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1/esp32/flags/defines" "-I/tmp/arduino_modified_sketch_460535" -iprefix "/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1/esp32/include/" "@/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1/esp32/flags/includes" "-I/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1/esp32/qio_qspi/include" "-I/home/darkmix/.arduino15/packages/esp32/hardware/esp32/3.2.0/cores/esp32" "-I/home/darkmix/.arduino15/packages/esp32/hardware/esp32/3.2.0/variants/esp32" "-I/home/darkmix/Arduino/libraries/Adafruit_NeoPixel" "@/tmp/arduino_build_385637/build_opt.h" "@/tmp/arduino_build_385637/file_opts" "/tmp/arduino_build_385637/sketch/strandtest.ino.cpp" -o "/tmp/arduino_build_385637/sketch/strandtest.ino.cpp.o"
Compiling libraries...
Compiling library "Adafruit_NeoPixel"
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/libraries/Adafruit_NeoPixel/esp.c.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/libraries/Adafruit_NeoPixel/esp8266.c.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/libraries/Adafruit_NeoPixel/kendyte_k210.c.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/libraries/Adafruit_NeoPixel/Adafruit_NeoPixel.cpp.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/libraries/Adafruit_NeoPixel/Adafruit_Neopixel_RP2.cpp.o
Compiling core...
/usr/bin/env bash -c "echo -DARDUINO_CORE_BUILD > '/tmp/arduino_build_385637/file_opts'"
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/ColorFormat.c.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/esp32-hal-adc.c.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/esp32-hal-bt.c.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/esp32-hal-cpu.c.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/esp32-hal-dac.c.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/esp32-hal-gpio.c.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/esp32-hal-i2c-ng.c.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/esp32-hal-i2c-slave.c.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/esp32-hal-i2c.c.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/esp32-hal-ledc.c.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/esp32-hal-matrix.c.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/esp32-hal-misc.c.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/esp32-hal-periman.c.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/esp32-hal-psram.c.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/esp32-hal-rgb-led.c.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/esp32-hal-rmt.c.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/esp32-hal-sigmadelta.c.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/esp32-hal-spi.c.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/esp32-hal-time.c.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/esp32-hal-timer.c.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/esp32-hal-tinyusb.c.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/esp32-hal-touch-ng.c.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/esp32-hal-touch.c.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/esp32-hal-uart.c.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/firmware_msc_fat.c.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/stdlib_noniso.c.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/wiring_pulse.c.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/wiring_shift.c.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/libb64/cdecode.c.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/libb64/cencode.c.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/Esp.cpp.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/FirmwareMSC.cpp.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/FunctionalInterrupt.cpp.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/HEXBuilder.cpp.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/HWCDC.cpp.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/HardwareSerial.cpp.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/IPAddress.cpp.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/MD5Builder.cpp.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/MacAddress.cpp.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/Print.cpp.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/SHA1Builder.cpp.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/Stream.cpp.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/StreamString.cpp.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/Tone.cpp.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/USB.cpp.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/USBCDC.cpp.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/USBMSC.cpp.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/WMath.cpp.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/WString.cpp.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/base64.cpp.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/cbuf.cpp.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/chip-debug-report.cpp.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/freertos_stats.cpp.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/main.cpp.o
Użycie wcześniej skompilowanego pliku: /tmp/arduino_build_385637/core/core.a
Archiving built core (caching) in: /tmp/arduino_cache_950965/core/core_esp32_esp32_esp32_JTAGAdapter_default,PSRAM_disabled,PartitionScheme_default,CPUFreq_240,FlashMode_qio,FlashFreq_80,FlashSize_4M,UploadSpeed_115200,LoopCore_1,EventsCore_1,DebugLevel_none,EraseFlash_none,ZigbeeMode_default_a52bcb3f3beca066e01b260aaf12dfa7.a
/usr/bin/env bash -c ": > '/tmp/arduino_build_385637/file_opts'"
Linking everything together...
"/home/darkmix/.arduino15/packages/esp32/tools/esp-x32/2411/bin/xtensa-esp32-elf-g++" "-Wl,--Map=/tmp/arduino_build_385637/strandtest.ino.map" "-L/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1/esp32/lib" "-L/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1/esp32/ld" "-L/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1/esp32/qio_qspi" "-Wl,--wrap=esp_panic_handler" "@/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1/esp32/flags/ld_flags" "@/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1/esp32/flags/ld_scripts"  -Wl,--start-group "/tmp/arduino_build_385637/sketch/strandtest.ino.cpp.o" "/tmp/arduino_build_385637/libraries/Adafruit_NeoPixel/esp.c.o" "/tmp/arduino_build_385637/libraries/Adafruit_NeoPixel/esp8266.c.o" "/tmp/arduino_build_385637/libraries/Adafruit_NeoPixel/kendyte_k210.c.o" "/tmp/arduino_build_385637/libraries/Adafruit_NeoPixel/Adafruit_NeoPixel.cpp.o" "/tmp/arduino_build_385637/libraries/Adafruit_NeoPixel/Adafruit_Neopixel_RP2.cpp.o" "/tmp/arduino_build_385637/core/core.a"   "@/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1/esp32/flags/ld_libs"  -Wl,--end-group -Wl,-EL -o "/tmp/arduino_build_385637/strandtest.ino.elf"
"/home/darkmix/.arduino15/packages/esp32/tools/esptool_py/4.9.dev3/esptool" --chip esp32 elf2image --flash_mode "dio" --flash_freq "80m" --flash_size "4MB" --elf-sha256-offset 0xb0 -o "/tmp/arduino_build_385637/strandtest.ino.bin" "/tmp/arduino_build_385637/strandtest.ino.elf"
esptool.py v4.8.1
Creating esp32 image...
Merged 2 ELF sections
Successfully created esp32 image.
python3 "/home/darkmix/.arduino15/packages/esp32/hardware/esp32/3.2.0/tools/gen_esp32part.py" -q "/tmp/arduino_build_385637/partitions.csv" "/tmp/arduino_build_385637/strandtest.ino.partitions.bin"
/usr/bin/env bash -c "[ ! -d "/tmp/arduino_build_385637"/libraries/Insights ] || python3 "/home/darkmix/.arduino15/packages/esp32/hardware/esp32/3.2.0"/tools/gen_insights_package.py /tmp/arduino_build_385637 strandtest.ino "/tmp/arduino_modified_sketch_460535""
/usr/bin/env bash -c "[ ! -d "/tmp/arduino_build_385637"/libraries/ESP_SR ] || [ ! -f "/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1/esp32"/esp_sr/srmodels.bin ] || cp -f "/home/darkmix/.arduino15/packages/esp32/tools/esp32-arduino-libs/idf-release_v5.4-2f7dcd86-v1/esp32"/esp_sr/srmodels.bin "/tmp/arduino_build_385637"/srmodels.bin"
"/home/darkmix/.arduino15/packages/esp32/tools/esptool_py/4.9.dev3/esptool" --chip esp32 merge_bin -o "/tmp/arduino_build_385637/strandtest.ino.merged.bin" --fill-flash-size 4MB --flash_mode keep --flash_freq keep --flash_size keep 0x1000 "/tmp/arduino_build_385637/strandtest.ino.bootloader.bin" 0x8000 "/tmp/arduino_build_385637/strandtest.ino.partitions.bin" 0xe000 "/home/darkmix/.arduino15/packages/esp32/hardware/esp32/3.2.0/tools/partitions/boot_app0.bin" 0x10000 "/tmp/arduino_build_385637/strandtest.ino.bin"
esptool.py v4.8.1
Wrote 0x400000 bytes to file /tmp/arduino_build_385637/strandtest.ino.merged.bin, ready to flash to offset 0x0
Użycie biblioteki Adafruit_NeoPixel w wersji 1.15.1 z folderu: /home/darkmix/Arduino/libraries/Adafruit_NeoPixel 
Szkic używa 300742 bajtów (22%) pamięci programu. Maksimum to 1310720 bajtów.
Zmienne globalne używają 21396 bajtów (6%) pamięci dynamicznej, pozostawiając 306284 bajtów dla zmiennych lokalnych. Maksimum to 327680 bajtów.
/home/darkmix/.arduino15/packages/esp32/tools/esptool_py/4.9.dev3/esptool --chip esp32 --port /dev/ttyUSB0 --baud 115200 --before default_reset --after hard_reset write_flash -z --flash_mode keep --flash_freq keep --flash_size keep 0x1000 /tmp/arduino_build_385637/strandtest.ino.bootloader.bin 0x8000 /tmp/arduino_build_385637/strandtest.ino.partitions.bin 0xe000 /home/darkmix/.arduino15/packages/esp32/hardware/esp32/3.2.0/tools/partitions/boot_app0.bin 0x10000 /tmp/arduino_build_385637/strandtest.ino.bin 
esptool.py v4.8.1
Serial port /dev/ttyUSB0
Connecting......
Chip is ESP32-D0WDQ6 (revision v1.0)
Features: WiFi, BT, Dual Core, 240MHz, VRef calibration in efuse, Coding Scheme None
Crystal is 40MHz
MAC: 3c:61:05:17:55:c0
Uploading stub...
Running stub...
Stub running...
Configuring flash size...
Flash will be erased from 0x00001000 to 0x00007fff...
Flash will be erased from 0x00008000 to 0x00008fff...
Flash will be erased from 0x0000e000 to 0x0000ffff...
Flash will be erased from 0x00010000 to 0x00059fff...
Compressed 24976 bytes to 15972...
Writing at 0x00001000... (100 %)
Wrote 24976 bytes (15972 compressed) at 0x00001000 in 1.8 seconds (effective 112.9 kbit/s)...
Hash of data verified.
Compressed 3072 bytes to 146...
Writing at 0x00008000... (100 %)
Wrote 3072 bytes (146 compressed) at 0x00008000 in 0.1 seconds (effective 474.3 kbit/s)...
Hash of data verified.
Compressed 8192 bytes to 47...
Writing at 0x0000e000... (100 %)
Wrote 8192 bytes (47 compressed) at 0x0000e000 in 0.1 seconds (effective 821.6 kbit/s)...
Hash of data verified.
Compressed 300880 bytes to 161601...
Writing at 0x00010000... (10 %)
Writing at 0x0001bfb0... (20 %)
Writing at 0x00029079... (30 %)
Writing at 0x0002e62d... (40 %)
Writing at 0x00033fa8... (50 %)
Writing at 0x000392aa... (60 %)
Writing at 0x0003e86a... (70 %)
Writing at 0x00043ea6... (80 %)
Writing at 0x0004b0a2... (90 %)
Writing at 0x00054422... (100 %)
Wrote 300880 bytes (161601 compressed) at 0x00010000 in 14.5 seconds (effective 166.3 kbit/s)...
Hash of data verified.

Leaving...
Hard resetting via RTS pin...
    .
    WS2812B LED not working with ESP32 CP2102 on GPIO2/5/13/35 – wiring or code issue? .
    tried adafruit and fastled[/img].

    maybe i'll just give up on them and put in the usual 4 pins (5v, g, b, r) because these at least work
  • #7 21623346
    DJ_KLIMA
    Level 24  
    Eh, in loop every 1 second send to the strip, it will work with a kick. And if it doesn't work, then an analyser or oscilloscope on the tip, I did 1000 different flickers on ESP32, ESP8266, DMX, ArtNet, WiFi, it sat for a while, but the strips always lit up on the 1st try with the library from Adafruit, over time I started adding a 3.3 V converter -> 5 V, because it was a problem if you mixed LEDs from different manufacturers, 74HCT1G125 under A signal from ESP, OE+GND to GND, VCC to +5 V and Y on DIN of the strip.
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  • #8 21623369
    cototo1991
    Level 3  
    DJ_KLIMA wrote:
    Eh, in loop every 1 second send to the strip, it will work with a kick. And if it doesn't work, then an analyser or oscilloscope on the tip, I did 1000 different flickers on ESP32, ESP8266, DMX, ArtNet, WiFi, it sat for a while, but the strips always lit up on the 1st try with the library from Adafruit, over time I started adding a 3.3 V converter -> 5 V, as it was a problem when mixing LEDs from different manufacturers, 74HCT1G125 under A signal from ESP, OE+GND to GND, VCC to +5 V and Y on DIN of the strip.
    .
    I also tried not HTC but AHCT like this:
    "ESP32 (signal):
    GPIO5 (D5) → pin 1A (input) on 74AHCT125
    pin 1Y (output) → via 330 Ω resistor → DIN WS2812B

    🔴 Power supply to 74AHCT125:
    VCC (pin 14) → 5 V from LM2596
    GND (pin 7) → GND (common with ESP and LED)
    1OE (pin 1) → GND (to activate the 1A/1Y buffer)

    🟡 WS2812B power supply:
    VCC LED → 5 V from LM2596
    GND LED → GND common
    DIN LED → from 1Y 74AHCT125 via 330 Ω".

    I still had the "LED box ambilight" it has the same leds in it, it under the LED box driver started but under ESP32b not either 🤮 I will try later this loop every 1 sec
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Topic summary

The user is developing an automatic vodka dispenser using an ESP32 CP2102 microcontroller and WS2812B LEDs but faces issues with the LEDs not functioning on GPIO pins 2, 5, 13, and 35. The LEDs work correctly in a Tinkercad simulation but fail in the physical setup despite attempts with different wiring configurations, including adding a capacitor, resistor, and a 74AHCT125 level shifter. The LED diode only lights briefly when the data input (DIN) is shorted to ground or toggled rapidly, indicating possible signal or wiring issues. The project operates correctly without the LEDs, but the user seeks advice on proper wiring or code adjustments to enable LED signaling.
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