'project_n_planning'에 해당되는 글 15건

  1. 2021.05.23 :: ESP32-CAM AI-Thinker Pinout Guide
  2. 2021.05.23 :: ESP32-CAM programmer
  3. 2021.05.23 :: ESP32QRCodeReader
  4. 2021.05.15 :: Qualcomm WiFi6 Monitoring mode driver development
  5. 2014.10.01 :: run out of memory - JAVA - ANT
  6. 2014.09.29 :: ReplicatorG Install and changing JVM
project_n_planning/ESP32CAM_QRCode_Reader 2021. 5. 23. 21:54

ESP32-CAM AI-Thinker Pinout Guide

 

 

https://randomnerdtutorials.com/esp32-cam-ai-thinker-pinout/

 

ESP32-CAM AI-Thinker Pinout Guide: GPIOs Usage Explained | Random Nerd Tutorials

The ESP32-CAM is a dev board with an ESP32-S chip, an OV2640 camera, microSD card and several GPIOs to connect peripherals. Learn how to use the ESP32-CAM GPIOs.

randomnerdtutorials.com

 

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project_n_planning/ESP32CAM_QRCode_Reader 2021. 5. 23. 21:37

ESP32-CAM programmer

https://www.instructables.com/ESP32-Cam-Programmer/

 

ESP32-Cam Programmer

ESP32-Cam Programmer: ESP32-Cam is a compact size and low cost ESP32 Development board with OV2640 camera. There's no USB programming port, so you need external programmer like FTDI, CH340 or CP2102 to upload code through serial pins (UOR and UOT). While i

www.instructables.com

 

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:
project_n_planning/ESP32CAM_QRCode_Reader 2021. 5. 23. 21:26

ESP32QRCodeReader

#ESP32CAM

- ESP32QRCodeReader test record  with PlatformIO

> PlatformIO as VSCode plugin

ESP32QRCodeReader-3.zip
0.05MB

 

 

- platformio.ini

; PlatformIO Project Configuration File
;
;   Build options: build flags, source filter
;   Upload options: custom upload port, speed and extra flags
;   Library options: dependencies, extra library storages
;   Advanced options: extra scripting
;
; Please visit documentation for the other options and examples
; https://docs.platformio.org/page/projectconf.html

[env:esp32cam-3]
platform = espressif32
board = esp32cam
framework = arduino
lib_deps = 
    alvarowolfx/ESP32QRCodeReader @ ^1.1.0
    alvarowolfx/ESP32QRCodeReader @ ~1.1.0
    alvarowolfx/ESP32QRCodeReader @ 1.1.0

monitor_speed = 115200

 

https://platformio.org/lib/show/10940/ESP32QRCodeReader/examples

 

PlatformIO is a professional collaborative platform for embedded development

Open source, cross-platform IDE and Unified Debugger. Static Code Analyzer and Remote Unit Testing. Multi-platform and Multi-architecture Build System. Firmware File Explorer and Memory Inspection.

platformio.org

 

- Sample QRCode Image

 

 

 

 

 

 

 

 

 

Appendix:

A.1

https://codingrun.com/100

 

아두이노 라이브러리 추가하는 방법

안녕하세요 코딩런입니다. 책이나 인터넷에서 아두이노 예제를 보고 따라하다보면 라이브러리를 추가하는 일이 생깁니다. 이 때 라이브러리 파일이 없어 에러가 나는 경험을 해 보셨을 겁니다.

codingrun.com

 

A.2

https://www.arduino.cc/en/guide/libraries

 

Arduino - Libraries

Installing Additional Arduino Libraries Once you are comfortable with the Arduino software and using the built-in functions, you may want to extend the ability of your Arduino with additional libraries. What are Libraries? Libraries are a collection of cod

www.arduino.cc

 

A.3

https://github.com/alvarowolfx/ESP32QRCodeReader

 

alvarowolfx/ESP32QRCodeReader

A library to read QR Codes using an ESP32 with a camera module. - alvarowolfx/ESP32QRCodeReader

github.com

 

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project_n_planning/WiFi monitoring mode Driver development 2021. 5. 15. 17:26

Qualcomm WiFi6 Monitoring mode driver development

Qualcomm WiFi6 Monitoring mode driver development 

 

1. Target: Qualcomm WiFi6 driver supporting monitoring mode

- Intrusion detection solution

- QCN9074

- sample card: https://www.sparklan.com/product/qcn9074-mu-mimo-wifi6-module-4x4/

 

WPEQ-405AX - QCN9074 MU-MIMO Wifi-6 Module 4x4 | SparkLAN

WPEQ-405AX - QCN9074 MU-MIMO Wifi-6 Module | 802.11ax Single Band solutions runs 5GHz band in Full Size Mini PCIe formfactor

www.sparklan.com

- sample link:

https://skylit.tistory.com/120

 

Qualcomm Atheros ath9k, htc9271 펌웨어(firmware) 소스코드 받아서 빌드하기

연구 목적으로 compat-wireless 패키지에 들어 있는 Qualcomm Atheros 칩셋 중 하나인 ath9k의 소스코드를 고치고 있는데,아무리 봐도 내가 원하는 기능을 해당 코드에서 달성할 수 없는 것 같다. 디바이

skylit.tistory.com

2. Basic study

- WiFi monitoring mode and Packet injection

https://null-byte.wonderhowto.com/how-to/check-if-your-wireless-network-adapter-supports-monitor-mode-packet-injection-0191221/

 

How to Check if Your Wireless Network Adapter Supports Monitor Mode & Packet Injection

To hack a Wi-Fi network, you need your wireless card to support monitor mode and packet injection. Not all wireless cards can do this, but you can quickly test one you already own for compatibility, and you can verify that the chipset inside an adapter you

null-byte.wonderhowto.com

 

- Opensource linux driver

https://wireless.wiki.kernel.org/en/users/drivers/ath11k

 

- OpenWrt개발환경 /w buildroot

https://eehoeskrap.tistory.com/272

 

[Embedded linux] 리눅스 기반 Buildroot 를 이용하여 시스템 이미지 생성하기

리눅스 기반 Buildroot 를 이용하여 시스템 이미지 생성하기 Buildroot 메뉴얼 : https://buildroot.org/downloads/manual/manual.html 1. 패키지 설치 1.1 필수 패키지 Build tools: which sed make (version 3.8..

eehoeskrap.tistory.com

https://blog.rajephon.dev/2018/11/09/build-openwrt-00/

 

OpenWrt 패키지 빌드 환경 세팅하기 | rajephon's blog

출처 flickr:Gareth Halfacree

blog.rajephon.dev

 

- WiFi6 community activities

https://forum.openwrt.org/t/802-11ax-wifi-ap-mpci-e-cards/63577

 

802.11ax wifi AP mPCI-E cards

hi Its almost mid 2020 and as we all deal with this Caronavirus outbreak, does anyone know of any 802.11ax mini PCI-E cards to use in a custom PCI-Engines router ? I run a apu4b4 board Ghat

forum.openwrt.org

#OpenWrt #buildroot

posted by cskimair
:
project_n_planning/3D-Printing 2014. 10. 1. 14:19

run out of memory - JAVA - ANT


1. http://soenkerohde.com/2008/06/change-eclipse-ant-settings-when-you-run-out-of-memory/comment-page-1/

On the mac, go to /Application/eclipse/eclipse, Ctrl-Click on eclipse, select “Show Package Contents”, go into directory “Contents/MacOS” and edit eclipse.ini and throw in the parameters. For instance my eclipse.ini is –
-showsplash
org.eclipse.platform
-startup
../../../plugins/org.eclipse.equinox.launcher_1.0.101.R34x_v20081125.jar
–launcher.library
../../../plugins/org.eclipse.equinox.launcher.carbon.macosx_1.0.101.R34x_v20080731
-vmargs
-Xdock:icon=../Resources/Eclipse.icns
-XstartOnFirstThread

-Xms1024m
-Xmx1024m
-XX:MaxPermSize=1024m
-Dosgi.requiredJavaVersion=1.5
-Dorg.eclipse.swt.internal.carbon.smallFonts

Hope this helps! thanks

2. http://soenkerohde.com/2008/06/change-eclipse-ant-settings-when-you-run-out-of-memory/

Change Eclipse Ant settings when you run out of memory

I use Ant a lot to compile AIR or Flex projects. When it comes to larger projects (especially when you compile multiple modules and libraries) you have to increase the amount of memory Ant is allowed to use. Otherwise you can get an exception like this:

[mxmlc] Loading configuration file PATH_TO_YOUR_SDK/flex_sdk_3.0.2.2095/frameworks/air-config.xml
[mxmlc] Error: PermGen space
[mxmlc] java.lang.OutOfMemoryError: PermGen space
[mxmlc] at java.lang.String.intern(Native Method)
[mxmlc] …

  • In Eclipse open menu: Run->External Tools->Open External Tools Dialog…
  • Select the build script you want to change on the left
  • Select the JRE tab on the right
  • Set the following as VM arguments: -Xms768m -Xmx1024m -XX:MaxPermSize=512m

These values work for me but you might want to change it to match your environment and project size.



A.1 google 검색 : 

https://www.google.co.kr/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#newwindow=1&q=eclipse%20ant%20java%20heap%20space


A.2 

https://www.google.co.kr/search?q=XX%3AMaxPermSize&oq=XX%3AMaxPermSize&aqs=chrome..69i57j69i58&sourceid=chrome&es_sm=122&ie=UTF-8


http://soenkerohde.com/2008/08/eclipse-goodies/




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project_n_planning/3D-Printing 2014. 9. 29. 09:31

ReplicatorG Install and changing JVM

ReplicatorG Install and changing JVM


1. Install ReplicatorG

- http://replicat.org/installation-linux


2. changing JVM for java 3D view

- http://askubuntu.com/questions/67909/how-do-i-install-oracle-jdk-6

*. Some computers will not display your model with the open source versions of Java installed. So, you have to jump through some hoops to make sure you have Sun's Java 6 JRE package installed.

- http://grover.open2space.com/content/getting-started-3d-printing 



3. jvm heap size


3.1 http://www.mkyong.com/eclipse/eclipse-java-lang-outofmemoryerror-java-heap-space/


3.2 http://www.nextree.co.kr/p3878/

3.3 https://groups.google.com/forum/#!topic/makerbot/_x7Dew1xdQs

java replicatorg.app.Base "$@"

to:

java -Xmx512m -Xms512m replicatorg.app.Base "$@"

This will set the max/min heap size to 512 megabytes.

(Yes, it's the 21st century, and java still can't dynamically adjust
its heap size.)






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