# Libraries **URL:** https://forum.arduino.cc/c/projects/libraries/39.md [Latest](https://forum.arduino.cc/latest.md) · [Categories](https://forum.arduino.cc/categories.md) --- ## [About the Libraries category](https://forum.arduino.cc/t/about-the-libraries-category/847479)
**Author:** [@system](https://forum.arduino.cc/u/system)\ **Replies:** 0\ **Last updated:** [April 12, 2021, 12:19pm UTC](https://forum.arduino.cc/t/about-the-libraries-category/847479 "2021-04-12T12:19:29Z")
Discussion about Arduino libraries This category has been closed. For new topics, please select another category that is relevant to the subject of your topic. --- ## [How to get the best out of this forum](https://forum.arduino.cc/t/how-to-get-the-best-out-of-this-forum/681333)
**Author:** [@PerryBebbington](https://forum.arduino.cc/u/PerryBebbington)\ **Replies:** 0\ **Last updated:** [November 4, 2020, 9:15am UTC](https://forum.arduino.cc/t/how-to-get-the-best-out-of-this-forum/681333 "2020-11-04T09:15:09Z")
Welcome to the Arduino forum! A guide explaining how to get the best out of this forum is available at the link below. Please read it: --- ## [Development/debugging tool for ESP32](https://forum.arduino.cc/t/development-debugging-tool-for-esp32/1302200)
**Author:** [@vvb333007](https://forum.arduino.cc/u/vvb333007)\ **Replies:** 20\ **Last updated:** [August 7, 2026, 5:39am UTC](https://forum.arduino.cc/t/development-debugging-tool-for-esp32/1302200 "2026-08-07T05:39:39Z")
Hello, Here is a shell for ESP32 cpu: GitHub - vvb333007/espshell: Command line interface debug tool for Arduino projects on ESP32 hardware Single .c file which can be placed to the directory where your .ino script is … --- ## [7" esp32 touchscreen documentation?](https://forum.arduino.cc/t/7-esp32-touchscreen-documentation/1174070)
**Author:** [@datahead2023](https://forum.arduino.cc/u/datahead2023)\ **Replies:** 7\ **Last updated:** [February 24, 2026, 10:13am UTC](https://forum.arduino.cc/t/7-esp32-touchscreen-documentation/1174070 "2026-02-24T10:13:41Z")
Hello and good day, I bought this ESP32 touchscreen display via the web and for the life of me cannot find any documentation on the board. See Photos. The resolution is 800x480. One I am unable to find any documentation… --- ## [TFT\_eSPI Library / STM32 / ILI9488 Display](https://forum.arduino.cc/t/tft-espi-library-stm32-ili9488-display/1331552)
**Author:** [@rf\_tec](https://forum.arduino.cc/u/rf_tec)\ **Replies:** 4\ **Last updated:** [June 5, 2025, 10:24am UTC](https://forum.arduino.cc/t/tft-espi-library-stm32-ili9488-display/1331552 "2025-06-05T10:24:07Z")
Good morning, I'm trying to setup an ILI9488 (SKU MSP3520) display with a STM32F1 MCU, via the SPI Bus, but, I have difficulty for customizing the associated files of TFT\_eSPI library, I get a compilation error that I … --- ## [Keep \`delay\` based approach while doing things concurrently with \`proto\_activities\`](https://forum.arduino.cc/t/keep-delay-based-approach-while-doing-things-concurrently-with-proto-activities/1308012)
**Author:** [@frameworklabs](https://forum.arduino.cc/u/frameworklabs)\ **Replies:** 44\ **Last updated:** [April 1, 2025, 7:30pm UTC](https://forum.arduino.cc/t/keep-delay-based-approach-while-doing-things-concurrently-with-proto-activities/1308012 "2025-04-01T19:30:12Z")
New developers start using delay but find out soon, that to do multiple things at once, a different and more complex approach is needed like using millis to measure elapsed time to do part of the work when ready as well … --- ## [FUSB302 Library "No PD supply available"](https://forum.arduino.cc/t/fusb302-library-no-pd-supply-available/1332189)
**Author:** [@erevo1234](https://forum.arduino.cc/u/erevo1234)\ **Replies:** 1\ **Last updated:** [February 2, 2025, 1:35am UTC](https://forum.arduino.cc/t/fusb302-library-no-pd-supply-available/1332189 "2025-02-02T01:35:29Z")
Hello, I wanted to use the FUSB302 USB PD controller with arduino nano via I2C. I'm using the FUSB302 PD UFP sink library with FUSB302 (ZY12PDN board with jumpers on the IC pads SCL, SDA, INT are all 5V 10K pull-up) and… --- ## [ESPAsync\_WiFiManager library - has no member named setAutoConnect](https://forum.arduino.cc/t/espasync-wifimanager-library-has-no-member-named-setautoconnect/1299741)
**Author:** [@wasauce](https://forum.arduino.cc/u/wasauce)\ **Replies:** 4\ **Last updated:** [December 28, 2024, 6:02pm UTC](https://forum.arduino.cc/t/espasync-wifimanager-library-has-no-member-named-setautoconnect/1299741 "2024-12-28T18:02:20Z")
Hello! I am trying to use the ESPAsync\_WiFiManager library on my esp32 project -- but I am running into the error I've highlighted below when I try to compile. I'm not sure what i've done wrong. I installed ESPAsync\_Wi… --- ## [If I may make a suggestion, code fiends](https://forum.arduino.cc/t/if-i-may-make-a-suggestion-code-fiends/1332890)
**Author:** [@AshPowers](https://forum.arduino.cc/u/AshPowers)\ **Replies:** 29\ **Last updated:** [December 26, 2024, 3:06pm UTC](https://forum.arduino.cc/t/if-i-may-make-a-suggestion-code-fiends/1332890 "2024-12-26T15:06:16Z")
I am all for the proliferation of more advanced and efficient code.. But, FOR THE LOVE OF GOD, ALLAH, MUHAMMAD, WHATEVER DIETY YOU PRAISE: STOP MODIFYING LIBRARIES AND USING THE SAME CALLS TO IT! If you want to creat… --- ## [ArduinoBLE library consume 95% of program storage](https://forum.arduino.cc/t/arduinoble-library-consume-95-of-program-storage/1285300)
**Author:** [@cloudfone](https://forum.arduino.cc/u/cloudfone)\ **Replies:** 4\ **Last updated:** [December 19, 2024, 2:20am UTC](https://forum.arduino.cc/t/arduinoble-library-consume-95-of-program-storage/1285300 "2024-12-19T02:20:33Z")
I use Arduino UNO Wifi Rev2 and my code is below: #include \ void setup() { // put your setup code here, to run once: } void loop() { // put your main code here, to run repeatedly: } This already s… --- ## [No update of library release after days](https://forum.arduino.cc/t/no-update-of-library-release-after-days/1332103)
**Author:** [@tochinet](https://forum.arduino.cc/u/tochinet)\ **Replies:** 3\ **Last updated:** [December 14, 2024, 7:05pm UTC](https://forum.arduino.cc/t/no-update-of-library-release-after-days/1332103 "2024-12-14T19:05:40Z")
I published a library for Posit arithmetic and after the needed correction in library.properties, it was added to the list. Now I wanted to updated it, and the recent releases do not appear after several days. I found Li… --- ## [Lyra2rev2 lyra2v2-webchain library](https://forum.arduino.cc/t/lyra2rev2-lyra2v2-webchain-library/1325096)
**Author:** [@ArakelTheDragon](https://forum.arduino.cc/u/ArakelTheDragon)\ **Replies:** 8\ **Last updated:** [December 14, 2024, 2:50pm UTC](https://forum.arduino.cc/t/lyra2rev2-lyra2v2-webchain-library/1325096 "2024-12-14T14:50:44Z")
Hi guys! I am looking for a library, but I can not find one. Can you please help. I know the hashrate will be low, I know its not efficient. Board ESP8266 Wemos D1 mini I tried to implement the library from here, but … --- ## [Unable to install ESPNow2Mqtt in Arduino2](https://forum.arduino.cc/t/unable-to-install-espnow2mqtt-in-arduino2/1332156)
**Author:** [@lstrobel](https://forum.arduino.cc/u/lstrobel)\ **Replies:** 0\ **Last updated:** [December 14, 2024, 2:05pm UTC](https://forum.arduino.cc/t/unable-to-install-espnow2mqtt-in-arduino2/1332156 "2024-12-14T14:05:01Z")
I try to install the espnow2mqtt lib in arduino-ide-2. But it claims that the dependency Nanopb ist not available as Arduino library. Then I downloaded and installed the Nanopb lib using Arduino-IDE and the IDE confirme… --- ## [WebSerial library not showing initial prints](https://forum.arduino.cc/t/webserial-library-not-showing-initial-prints/1331292)
**Author:** [@hserras](https://forum.arduino.cc/u/hserras)\ **Replies:** 0\ **Last updated:** [December 11, 2024, 2:47pm UTC](https://forum.arduino.cc/t/webserial-library-not-showing-initial-prints/1331292 "2024-12-11T14:47:00Z")
Hello everyone, Really sorry if this post wont be well formatted or even written, but it's the first time I open a post here. I started using the WebSerial library, currently version 2.0.8, in order to print some stuff… --- ## [Can't create a library](https://forum.arduino.cc/t/cant-create-a-library/1330755)
**Author:** [@konsmac](https://forum.arduino.cc/u/konsmac)\ **Replies:** 3\ **Last updated:** [December 10, 2024, 11:09pm UTC](https://forum.arduino.cc/t/cant-create-a-library/1330755 "2024-12-10T23:09:55Z")
Hello everyone. I want to arrange my code, and along with this understand object oriented programming. I want to wrap in a library my stepper motor code. So, in Document-\>Arduino-\>Libraries I created a dedicated folde… --- ## [My Library isn't showing](https://forum.arduino.cc/t/my-library-isnt-showing/1329816)
**Author:** [@ktauchathuranga](https://forum.arduino.cc/u/ktauchathuranga)\ **Replies:** 2\ **Last updated:** [December 7, 2024, 2:03pm UTC](https://forum.arduino.cc/t/my-library-isnt-showing/1329816 "2024-12-07T14:03:01Z")
hey, i created a library for Arduino, but its not showing up in https://docs.arduino.cc/libraries/ my other library is, i can search in there, but the new one is not. is there any reason for that... thank uuuuuu..… --- ## [Query about INA237 Library](https://forum.arduino.cc/t/query-about-ina237-library/1328803)
**Author:** [@nitheeshoppila](https://forum.arduino.cc/u/nitheeshoppila)\ **Replies:** 17\ **Last updated:** [December 7, 2024, 9:37am UTC](https://forum.arduino.cc/t/query-about-ina237-library/1328803 "2024-12-07T09:37:44Z")
Hi, I have to get the parameters value from ina237 using Arduino. But library is not available in Arduino IDE. So could you please send me the library as soon as possible? Regards, Nitheesh --- ## [Arduino library](https://forum.arduino.cc/t/arduino-library/1328442)
**Author:** [@yush147](https://forum.arduino.cc/u/yush147)\ **Replies:** 0\ **Last updated:** [December 3, 2024, 1:11pm UTC](https://forum.arduino.cc/t/arduino-library/1328442 "2024-12-03T13:11:59Z")
hello, just wanna know how make a library using customize characters? can be show in P10 led display --- ## [Low-Power by Rock Scream No matching function](https://forum.arduino.cc/t/low-power-by-rock-scream-no-matching-function/1324990)
**Author:** [@tominacom](https://forum.arduino.cc/u/tominacom)\ **Replies:** 2\ **Last updated:** [November 24, 2024, 4:14pm UTC](https://forum.arduino.cc/t/low-power-by-rock-scream-no-matching-function/1324990 "2024-11-24T16:14:47Z")
I am writing a code for a self contain soil moisture sensor box using Arduino Nano. I am a completely armature at Arduino and have been coasting though my previous project with Youtube videos and Wokwi publicly available… --- ## [Error of AFMotor.h when compiling](https://forum.arduino.cc/t/error-of-afmotor-h-when-compiling/1324745)
**Author:** [@spunc595](https://forum.arduino.cc/u/spunc595)\ **Replies:** 5\ **Last updated:** [November 23, 2024, 5:43pm UTC](https://forum.arduino.cc/t/error-of-afmotor-h-when-compiling/1324745 "2024-11-23T17:43:04Z")
Hi. I am new in arduino and I am trying to build a robot with arduino leonardo. I have a motor shield , Aihasd l293d motor drive shield. I download the AFMotor.h library, but when i compile the sketch I have some errors … --- ## [OTA on Portenta Machine Control with Watchdog](https://forum.arduino.cc/t/ota-on-portenta-machine-control-with-watchdog/1311307)
**Author:** [@econeale](https://forum.arduino.cc/u/econeale)\ **Replies:** 1\ **Last updated:** [November 21, 2024, 5:03am UTC](https://forum.arduino.cc/t/ota-on-portenta-machine-control-with-watchdog/1311307 "2024-11-21T05:03:10Z")
Hello, I'm using a Portenta Machine Control with the Arduino\_Portenta\_OTA library. This works fine unless it's used with the MBed Watchdog timer which will timeout during the decompression process for any reasonably siz… --- ## [Arduino file heiarchy documentation](https://forum.arduino.cc/t/arduino-file-heiarchy-documentation/1321005)
**Author:** [@msaine1](https://forum.arduino.cc/u/msaine1)\ **Replies:** 13\ **Last updated:** [November 13, 2024, 5:14am UTC](https://forum.arduino.cc/t/arduino-file-heiarchy-documentation/1321005 "2024-11-13T05:14:22Z")
Is there a doc that explains the Hierarchy and file structure of the IDE? What I mean is if I don't want to use the "default" location for the installation what things should I be looking for as to how the IDE finds libr… --- ## [RFID library for PN7161](https://forum.arduino.cc/t/rfid-library-for-pn7161/1321281)
**Author:** [@willibaldk](https://forum.arduino.cc/u/willibaldk)\ **Replies:** 0\ **Last updated:** [November 12, 2024, 5:05pm UTC](https://forum.arduino.cc/t/rfid-library-for-pn7161/1321281 "2024-11-12T17:05:21Z")
Looking for someone who could program a library for PN7161 module, which is similar to \ :slightly\_smiling\_face: --- ## [No Such file or directory](https://forum.arduino.cc/t/no-such-file-or-directory/1319420)
**Author:** [@santhosh2005](https://forum.arduino.cc/u/santhosh2005)\ **Replies:** 4\ **Last updated:** [November 12, 2024, 5:39pm UTC](https://forum.arduino.cc/t/no-such-file-or-directory/1319420 "2024-11-12T17:39:08Z")
FQBN: esp8266:esp8266:nodemcuv2:dbg=Serial Using board 'nodemcuv2' from platform in folder: C:\\Users\\santh\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.1.2 Using core 'esp8266' from platform in folder: C:… --- ## [V3 macro bug in library with no Issues menu](https://forum.arduino.cc/t/v3-macro-bug-in-library-with-no-issues-menu/1320545)
**Author:** [@sonofcy](https://forum.arduino.cc/u/sonofcy)\ **Replies:** 11\ **Last updated:** [November 12, 2024, 1:42pm UTC](https://forum.arduino.cc/t/v3-macro-bug-in-library-with-no-issues-menu/1320545 "2024-11-12T13:42:42Z")
The library ESPAsyncWebSrv has a compile error In file included from /Users/ronalexander/Library/CloudStorage/OneDrive-Personal/Documents/Electronics/SourceCode/Arduino/libraries/ESPAsyncWebSrv/src/WebAuthentication.cpp… --- ## [Unit Testing Recommendations With Serial Mock](https://forum.arduino.cc/t/unit-testing-recommendations-with-serial-mock/1295381)
**Author:** [@Sandwich1699975](https://forum.arduino.cc/u/Sandwich1699975)\ **Replies:** 2\ **Last updated:** [November 11, 2024, 11:34pm UTC](https://forum.arduino.cc/t/unit-testing-recommendations-with-serial-mock/1295381 "2024-11-11T23:34:09Z")
I have a custom esp32 board and it communicates with a daughterboard over serial. I'm looking to mock external serial input and feed that into various unit tests (Perhaps this could be done with some kind of system to … --- ## [Wizfi360-EVB-Pico + TR-064 library](https://forum.arduino.cc/t/wizfi360-evb-pico-tr-064-library/1316359)
**Author:** [@trtra](https://forum.arduino.cc/u/trtra)\ **Replies:** 1\ **Last updated:** [November 10, 2024, 11:29am UTC](https://forum.arduino.cc/t/wizfi360-evb-pico-tr-064-library/1316359 "2024-11-10T11:29:34Z")
I have a Wiznet wizfi360-EVB-Pico board here ( WizFi360-EVB-Pico | WIZnet Document System ) and of course the corresponding board file installed. (GitHub - Wiznet/WizFi360\_arduino\_library: Arduino library and examples fo… --- ## [Problems in ArduinoBLE library](https://forum.arduino.cc/t/problems-in-arduinoble-library/1318784)
**Author:** [@nasri17](https://forum.arduino.cc/u/nasri17)\ **Replies:** 6\ **Last updated:** [November 5, 2024, 9:22am UTC](https://forum.arduino.cc/t/problems-in-arduinoble-library/1318784 "2024-11-05T09:22:16Z")
hello, I have a problem with the ArduinoBLE library. I'm using the example I found in the peripheral folder "batterymonitor". multiple errors that I can't understand from where exactly? the functions of this library look… --- ## [Include secrets.h](https://forum.arduino.cc/t/include-secrets-h/1317630)
**Author:** [@rwb](https://forum.arduino.cc/u/rwb)\ **Replies:** 3\ **Last updated:** [November 1, 2024, 9:28pm UTC](https://forum.arduino.cc/t/include-secrets-h/1317630 "2024-11-01T21:28:29Z")
I created secrets.h inside my libraries folder, but neither #include \ nor #include "secrets.h" works. Is this supposed to work somehow? --- ## [FFB With UnoJoy?](https://forum.arduino.cc/t/ffb-with-unojoy/1317488)
**Author:** [@frodo1644](https://forum.arduino.cc/u/frodo1644)\ **Replies:** 1\ **Last updated:** [November 1, 2024, 3:17pm UTC](https://forum.arduino.cc/t/ffb-with-unojoy/1317488 "2024-11-01T15:17:11Z")
Hello. I am currently building a DIY steering wheel. However, every tutorial online tells that I need an Arduino leonardo, which I do not have. (I have an Arduino Uno) I found a workaround for this by using a library ca… [Next page](https://forum.arduino.cc/c/projects/libraries/39.md?page=1)