diff options
| author | Abel Tim <git@abeltim.com> | 2025-05-08 11:35:17 +0200 |
|---|---|---|
| committer | Abel Tim <git@abeltim.com> | 2025-05-08 11:35:17 +0200 |
| commit | ab4ed41fde2da9719ff3192bab8d9f0d74a8a846 (patch) | |
| tree | 721249eaa0c1179c8e840c97c6908c395eaf61f7 | |
| parent | b9a9ce95602c31e4455d5aee71b2fa4139e40caa (diff) | |
| download | robotica-ab4ed41fde2da9719ff3192bab8d9f0d74a8a846.tar.gz robotica-ab4ed41fde2da9719ff3192bab8d9f0d74a8a846.zip | |
test sign live usb
Signed-off-by: Abel Tim <git@abeltim.com>
| -rw-r--r-- | code/debug/motors/3m_test/.vscode/extensions.json | 10 | ||||
| -rw-r--r-- | code/debug/motors/3m_test/.vscode/tasks.json | 13 | ||||
| -rw-r--r-- | code/debug/motors/3m_test/include/README | 37 | ||||
| -rw-r--r-- | code/debug/motors/3m_test/lib/README | 46 | ||||
| -rw-r--r-- | code/debug/motors/3m_test/platformio.ini | 14 | ||||
| -rw-r--r-- | code/debug/motors/3m_test/src/main.cpp | 92 | ||||
| -rw-r--r-- | code/debug/motors/3m_test/test/README | 11 | ||||
| -rw-r--r-- | code/debug/motors/base_drive/src/main.cpp | 54 | ||||
| -rw-r--r-- | main.cpp | 142 | ||||
| -rw-r--r-- | main2.cpp | 215 | ||||
| -rw-r--r-- | nutige-bronnen.txt | 2 |
11 files changed, 29 insertions, 607 deletions
diff --git a/code/debug/motors/3m_test/.vscode/extensions.json b/code/debug/motors/3m_test/.vscode/extensions.json deleted file mode 100644 index 080e70d..0000000 --- a/code/debug/motors/3m_test/.vscode/extensions.json +++ /dev/null @@ -1,10 +0,0 @@ -{ - // See http://go.microsoft.com/fwlink/?LinkId=827846 - // for the documentation about the extensions.json format - "recommendations": [ - "platformio.platformio-ide" - ], - "unwantedRecommendations": [ - "ms-vscode.cpptools-extension-pack" - ] -} diff --git a/code/debug/motors/3m_test/.vscode/tasks.json b/code/debug/motors/3m_test/.vscode/tasks.json deleted file mode 100644 index 1bd48a9..0000000 --- a/code/debug/motors/3m_test/.vscode/tasks.json +++ /dev/null @@ -1,13 +0,0 @@ -{ - "version": "2.0.0", - "tasks": [ - { - "type": "PlatformIO", - "task": "Check", - "problemMatcher": [ - "$platformio" - ], - "label": "PlatformIO: Check" - } - ] -}
\ No newline at end of file diff --git a/code/debug/motors/3m_test/include/README b/code/debug/motors/3m_test/include/README deleted file mode 100644 index 49819c0..0000000 --- a/code/debug/motors/3m_test/include/README +++ /dev/null @@ -1,37 +0,0 @@ - -This directory is intended for project header files. - -A header file is a file containing C declarations and macro definitions -to be shared between several project source files. You request the use of a -header file in your project source file (C, C++, etc) located in `src` folder -by including it, with the C preprocessing directive `#include'. - -```src/main.c - -#include "header.h" - -int main (void) -{ - ... -} -``` - -Including a header file produces the same results as copying the header file -into each source file that needs it. Such copying would be time-consuming -and error-prone. With a header file, the related declarations appear -in only one place. If they need to be changed, they can be changed in one -place, and programs that include the header file will automatically use the -new version when next recompiled. The header file eliminates the labor of -finding and changing all the copies as well as the risk that a failure to -find one copy will result in inconsistencies within a program. - -In C, the convention is to give header files names that end with `.h'. - -Read more about using header files in official GCC documentation: - -* Include Syntax -* Include Operation -* Once-Only Headers -* Computed Includes - -https://gcc.gnu.org/onlinedocs/cpp/Header-Files.html diff --git a/code/debug/motors/3m_test/lib/README b/code/debug/motors/3m_test/lib/README deleted file mode 100644 index 9379397..0000000 --- a/code/debug/motors/3m_test/lib/README +++ /dev/null @@ -1,46 +0,0 @@ - -This directory is intended for project specific (private) libraries. -PlatformIO will compile them to static libraries and link into the executable file. - -The source code of each library should be placed in a separate directory -("lib/your_library_name/[Code]"). - -For example, see the structure of the following example libraries `Foo` and `Bar`: - -|--lib -| | -| |--Bar -| | |--docs -| | |--examples -| | |--src -| | |- Bar.c -| | |- Bar.h -| | |- library.json (optional. for custom build options, etc) https://docs.platformio.org/page/librarymanager/config.html -| | -| |--Foo -| | |- Foo.c -| | |- Foo.h -| | -| |- README --> THIS FILE -| -|- platformio.ini -|--src - |- main.c - -Example contents of `src/main.c` using Foo and Bar: -``` -#include <Foo.h> -#include <Bar.h> - -int main (void) -{ - ... -} - -``` - -The PlatformIO Library Dependency Finder will find automatically dependent -libraries by scanning project source files. - -More information about PlatformIO Library Dependency Finder -- https://docs.platformio.org/page/librarymanager/ldf.html diff --git a/code/debug/motors/3m_test/platformio.ini b/code/debug/motors/3m_test/platformio.ini deleted file mode 100644 index a13d034..0000000 --- a/code/debug/motors/3m_test/platformio.ini +++ /dev/null @@ -1,14 +0,0 @@ -; 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:teensy41] -platform = teensy -board = teensy41 -framework = arduino diff --git a/code/debug/motors/3m_test/src/main.cpp b/code/debug/motors/3m_test/src/main.cpp deleted file mode 100644 index 24a4aff..0000000 --- a/code/debug/motors/3m_test/src/main.cpp +++ /dev/null @@ -1,92 +0,0 @@ -//a test to test all motors, no PWM -#include <Arduino.h> - -int led = 13; - -int m1enA = 6; -int m1enB = 5; -int m1pwm1 = 4; -int m1pwm2 = 3; -int m1encoA = 32; -int m1encoB = 31; - -int m2enA = 12; -int m2enB = 11; -int m2pwm1 = 9; -int m2pwm2 = 10; -int m2encoA = 30; -int m2encoB = 29; - -int m3enA = 27; -int m3enB = 26; -int m3pwm1 = 24; -int m3pwm2 = 25; -int m3encoA = 28; -int m3encoB = 23; - - -void setup() { - pinMode(m1enA, OUTPUT); - pinMode(m1enB, OUTPUT); - pinMode(m1pwm1, OUTPUT); - pinMode(m1pwm2, OUTPUT); - - pinMode(m2enA, OUTPUT); - pinMode(m2enB, OUTPUT); - pinMode(m2pwm1, OUTPUT); - pinMode(m2pwm2, OUTPUT); - - pinMode(m3enA, OUTPUT); - pinMode(m3enB, OUTPUT); - pinMode(m3pwm1, OUTPUT); - pinMode(m3pwm2, OUTPUT); - Serial.begin(9600); - Serial.print("debug 001"); - -} - -// the loop routine runs over and over again forever: -void loop() { - digitalWrite(led, HIGH); - - digitalWrite(m1enA, HIGH); - digitalWrite(m1enB, LOW); - digitalWrite(m1pwm1, HIGH); - digitalWrite(m1pwm2, LOW); - - - digitalWrite(m2enA, HIGH); - digitalWrite(m2enB, LOW); - digitalWrite(m2pwm1, HIGH); - digitalWrite(m2pwm2, LOW); - - digitalWrite(m3enA, HIGH); - digitalWrite(m3enB, LOW); - digitalWrite(m3pwm1, HIGH); - digitalWrite(m3pwm2, LOW); - - delay(5000); - - - digitalWrite(led, LOW); - - digitalWrite(m1enA, HIGH); - digitalWrite(m1enB, LOW); - digitalWrite(m1pwm1, LOW); - digitalWrite(m1pwm2, LOW); - - digitalWrite(m2enA, HIGH); - digitalWrite(m2enB, LOW); - digitalWrite(m2pwm1, LOW); - digitalWrite(m2pwm2, LOW); - - digitalWrite(m3enA, HIGH); - digitalWrite(m3enB, LOW); - digitalWrite(m3pwm1, LOW); - digitalWrite(m3pwm2, LOW); - - - delay(5000); - - -}
\ No newline at end of file diff --git a/code/debug/motors/3m_test/test/README b/code/debug/motors/3m_test/test/README deleted file mode 100644 index 9b1e87b..0000000 --- a/code/debug/motors/3m_test/test/README +++ /dev/null @@ -1,11 +0,0 @@ - -This directory is intended for PlatformIO Test Runner and project tests. - -Unit Testing is a software testing method by which individual units of -source code, sets of one or more MCU program modules together with associated -control data, usage procedures, and operating procedures, are tested to -determine whether they are fit for use. Unit testing finds problems early -in the development cycle. - -More information about PlatformIO Unit Testing: -- https://docs.platformio.org/en/latest/advanced/unit-testing/index.html diff --git a/code/debug/motors/base_drive/src/main.cpp b/code/debug/motors/base_drive/src/main.cpp index 95fd327..907736b 100644 --- a/code/debug/motors/base_drive/src/main.cpp +++ b/code/debug/motors/base_drive/src/main.cpp @@ -1,6 +1,5 @@ //base code for six direction driving -#include <Arduino.h> int led = 13; @@ -46,13 +45,14 @@ void setup() { } + void drive(int speed, int direction){ // // Direction............|.Motor 1.|.Motor 2.|.Motor 3. // 0deg(forward)........|....0....|....-....|....+.... - // 60deg................|....+....|....-....|....0.... + // 60deg................|....+....|....-....|....0.... // 120deg...............|....+....|....0....|....-.... - // 180 deg (backward)...|....0....|....+....|....-.... + // 180 deg (backward)...|....0....|....+....|....-.... // 240 deg..............|....-....|....+....|....0.... // 300 deg..............|....-....|....0....|....+.... // @@ -67,24 +67,24 @@ void drive(int speed, int direction){ Serial.println(direction); if(direction>330 || direction<=30){ //0 deg - digitalWrite(m1pwm1, LOW); - digitalWrite(m1pwm2, HIGH); + digitalWrite(m1pwm1, HIGH); + digitalWrite(m1pwm2, LOW); digitalWrite(m2pwm1, LOW); digitalWrite(m2pwm2, LOW); - digitalWrite(m3pwm1, LOW); - digitalWrite(m3pwm2, HIGH); - Serial.println("0 deg"); + digitalWrite(m3pwm1, HIGH); + digitalWrite(m3pwm2, LOW); + Serial.println("0 deg"); }else if (direction>30 && direction <= 90){ //60 deg Serial.println("60deg"); digitalWrite(m1pwm1, LOW); digitalWrite(m1pwm2, LOW); - digitalWrite(m2pwm1, HIGH); - digitalWrite(m2pwm2, LOW); - + digitalWrite(m2pwm1, LOW); + digitalWrite(m2pwm2, HIGH); + digitalWrite(m3pwm1, LOW); digitalWrite(m3pwm2, HIGH); }else if (direction>90 && direction <= 150){ @@ -99,35 +99,37 @@ void drive(int speed, int direction){ }else if (direction > 150 && direction <= 210) { //180 degrees Serial.println("on 180"); - digitalWrite(m1pwm1, HIGH); - digitalWrite(m1pwm2, LOW); + digitalWrite(m1pwm1, LOW); + digitalWrite(m1pwm2, HIGH); digitalWrite(m2pwm1, LOW); digitalWrite(m2pwm2, LOW); - - digitalWrite(m3pwm1, HIGH); - digitalWrite(m3pwm2, LOW); + + digitalWrite(m3pwm1, LOW); + digitalWrite(m3pwm2, HIGH); }else if (direction > 210 && direction <= 270) { //240 degrees digitalWrite(m1pwm1, LOW); digitalWrite(m1pwm2, LOW); - digitalWrite(m2pwm1, LOW); - digitalWrite(m2pwm2, HIGH); + digitalWrite(m2pwm1, HIGH); + digitalWrite(m2pwm2, LOW); - digitalWrite(m3pwm1, HIGH); - digitalWrite(m3pwm2, LOW); + digitalWrite(m3pwm1, LOW); + digitalWrite(m3pwm2, HIGH); }else if (direction > 270 && direction <= 330) { //300 degrees - digitalWrite(m1pwm1, LOW); - digitalWrite(m1pwm2, HIGH); - digitalWrite(m2pwm1, LOW); - digitalWrite(m2pwm2, HIGH); + digitalWrite(m1pwm1, HIGH); + digitalWrite(m1pwm2, LOW); + + digitalWrite(m2pwm1, HIGH); + digitalWrite(m2pwm2, LOW); + Serial.println("300deg"); digitalWrite(m3pwm1, LOW); digitalWrite(m3pwm2, LOW); }else{ - Serial.println("how?"); + Serial.println("how?"); } } @@ -140,4 +142,4 @@ void loop() { Serial.println("back"); delay(1500); -}
\ No newline at end of file +} diff --git a/main.cpp b/main.cpp deleted file mode 100644 index af96eaa..0000000 --- a/main.cpp +++ /dev/null @@ -1,142 +0,0 @@ -//base code for six direction driving - -int led = 13; - -int m1enA = 6; -int m1enB = 5; -int m1pwm1 = 4; -int m1pwm2 = 3; -int m1encoA = 32; -int m1encoB = 31; - -int m2enA = 12; -int m2enB = 11; -int m2pwm1 = 9; -int m2pwm2 = 10; -int m2encoA = 30; -int m2encoB = 29; - -int m3enA = 27; -int m3enB = 26; -int m3pwm1 = 24; -int m3pwm2 = 25; -int m3encoA = 28; -int m3encoB = 23; - -void setup() { - pinMode(m1enA, OUTPUT); - pinMode(m1enB, OUTPUT); - pinMode(m1pwm1, OUTPUT); - pinMode(m1pwm2, OUTPUT); - - pinMode(m2enA, OUTPUT); - pinMode(m2enB, OUTPUT); - pinMode(m2pwm1, OUTPUT); - pinMode(m2pwm2, OUTPUT); - - pinMode(m3enA, OUTPUT); - pinMode(m3enB, OUTPUT); - pinMode(m3pwm1, OUTPUT); - pinMode(m3pwm2, OUTPUT); - Serial.begin(9600); - Serial.print("start"); - -} - - -void drive(int speed, int direction){ - // - // Direction............|.Motor 1.|.Motor 2.|.Motor 3. - // 0deg(forward)........|....0....|....-....|....+.... - // 60deg................|....+....|....-....|....0.... - // 120deg...............|....+....|....0....|....-.... - // 180 deg (backward)...|....0....|....+....|....-.... - // 240 deg..............|....-....|....+....|....0.... - // 300 deg..............|....-....|....0....|....+.... - // - - digitalWrite(m1enA, HIGH); - digitalWrite(m2enA, HIGH); - digitalWrite(m3enA, HIGH); - digitalWrite(m1enB, LOW); - digitalWrite(m2enB, LOW); - digitalWrite(m3enB, LOW); - Serial.println("debug2"); - Serial.println(direction); - if(direction>330 || direction<=30){ - //0 deg - digitalWrite(m1pwm1, HIGH); - digitalWrite(m1pwm2, LOW); - - digitalWrite(m2pwm1, LOW); - digitalWrite(m2pwm2, LOW); - - digitalWrite(m3pwm1, HIGH); - digitalWrite(m3pwm2, LOW); - Serial.println("0 deg"); - }else if (direction>30 && direction <= 90){ - //60 deg - Serial.println("60deg"); - digitalWrite(m1pwm1, LOW); - digitalWrite(m1pwm2, LOW); - - digitalWrite(m2pwm1, LOW); - digitalWrite(m2pwm2, HIGH); - - digitalWrite(m3pwm1, LOW); - digitalWrite(m3pwm2, HIGH); - }else if (direction>90 && direction <= 150){ - //120 deg - Serial.println("120 deg"); - digitalWrite(m1pwm1, HIGH); - digitalWrite(m1pwm2, LOW); - digitalWrite(m2pwm1, HIGH); - digitalWrite(m2pwm2, LOW); - digitalWrite(m3pwm1, LOW); - digitalWrite(m3pwm2, LOW); - }else if (direction > 150 && direction <= 210) { - //180 degrees - Serial.println("on 180"); - digitalWrite(m1pwm1, LOW); - digitalWrite(m1pwm2, HIGH); - - digitalWrite(m2pwm1, LOW); - digitalWrite(m2pwm2, LOW); - - digitalWrite(m3pwm1, LOW); - digitalWrite(m3pwm2, HIGH); - }else if (direction > 210 && direction <= 270) { - //240 degrees - digitalWrite(m1pwm1, LOW); - digitalWrite(m1pwm2, LOW); - - digitalWrite(m2pwm1, HIGH); - digitalWrite(m2pwm2, LOW); - - digitalWrite(m3pwm1, LOW); - digitalWrite(m3pwm2, HIGH); - }else if (direction > 270 && direction <= 330) { - //300 degrees - digitalWrite(m1pwm1, HIGH); - digitalWrite(m1pwm2, LOW); - - digitalWrite(m2pwm1, HIGH); - digitalWrite(m2pwm2, LOW); - - Serial.println("300deg"); - digitalWrite(m3pwm1, LOW); - digitalWrite(m3pwm2, LOW); - }else{ - Serial.println("how?"); - } -} - -// the loop routine runs over and over again forever: -void loop() { - drive(150, 300); - Serial.println("ffor"); - delay(1500); - - - -}
\ No newline at end of file diff --git a/main2.cpp b/main2.cpp deleted file mode 100644 index c9753d5..0000000 --- a/main2.cpp +++ /dev/null @@ -1,215 +0,0 @@ -#include <TimerThree.h> - -//base code for six direction driving - -int led = 13; - -int m1enA = 6; -int m1enB = 5; -int m1pwm1 = 4; -int m1pwm2 = 3; -int m1encoA = 32; -int m1encoB = 31; - -int m2enA = 12; -int m2enB = 11; -int m2pwm1 = 9; -int m2pwm2 = 10; -int m2encoA = 30; -int m2encoB = 29; - -int m3enA = 27; -int m3enB = 26; -int m3pwm1 = 24; -int m3pwm2 = 25; -int m3encoA = 28; -int m3encoB = 23; - -int pwmacc = 1000; //how accurate the PWM is, means you can enter value from 0 to the value of pwmacc -int PWMval1 = 0; //value of the PWM, means you can enter value from 0 to the value of pwmacc -int PWMval2 = 0; -int PWMval3 = 0; - - -void setup() { - pinMode(m1enA, OUTPUT); - pinMode(m1enB, OUTPUT); - pinMode(m1pwm1, OUTPUT); - pinMode(m1pwm2, OUTPUT); - - pinMode(m2enA, OUTPUT); - pinMode(m2enB, OUTPUT); - pinMode(m2pwm1, OUTPUT); - pinMode(m2pwm2, OUTPUT); - - pinMode(m3enA, OUTPUT); - pinMode(m3enB, OUTPUT); - pinMode(m3pwm1, OUTPUT); - pinMode(m3pwm2, OUTPUT); - - Timer3.initialize(25); // 800 microseconds or 1.25Hz - Timer3.attachInterrupt(updatePWM); - - Serial.begin(9600); - Serial.print("start"); - -} - -void updatePWM() { - //1 - static int counter = 0; - if (PWMval1 < 0) { - PWMval1 = 0; - } - if (PWMval1 > pwmacc) { - PWMval1 = pwmacc; - } - - if (counter < PWMval1) { - digitalWrite(m1enA, HIGH); - } else { - digitalWrite(m1enA, LOW); - } - - counter++; - if (counter >= pwmacc) { - counter = 0; - } - - //2 - static int counter2 = 0; - if (PWMval2 < 0) { - PWMval2 = 0; - } - if (PWMval2 > pwmacc) { - PWMval2 = pwmacc; - } - - if (counter2 < PWMval2) { - digitalWrite(m2enA, HIGH); - } else { - digitalWrite(m2enA, LOW); - } - - counter2++; - if (counter2 >= pwmacc) { - counter2 = 0; - } - - //3 - int static counter3 = 0; - if (PWMval3 < 0) { - PWMval3 = 0; - } - if (PWMval3 > pwmacc) { - PWMval3 = pwmacc; - } - - if (counter3 < PWMval3) { - digitalWrite(m3enA, HIGH); - } else { - digitalWrite(m3enA, LOW); - } - - counter3++; - if (counter3 >= pwmacc) { - counter3 = 0; - } -} - - -void drive(int speed, int direction){ - // - // Direction............|.Motor 1.|.Motor 2.|.Motor 3. - // 0deg(forward)........|....0....|....-....|....+.... - // 60deg................|....+....|....-....|....0.... - // 120deg...............|....+....|....0....|....-.... - // 180 deg (backward)...|....0....|....+....|....-.... - // 240 deg..............|....-....|....+....|....0.... - // 300 deg..............|....-....|....0....|....+.... - // - - PWMval1 = speed; - PWMval2 = speed; - PWMval3 = speed; - digitalWrite(m1enB, LOW); - digitalWrite(m2enB, LOW); - digitalWrite(m3enB, LOW); - Serial.println("debug2"); - Serial.println(direction); - if(direction>330 || direction<=30){ - //0 deg - digitalWrite(m1pwm1, HIGH); - digitalWrite(m1pwm2, LOW); - - digitalWrite(m2pwm1, LOW); - digitalWrite(m2pwm2, LOW); - - digitalWrite(m3pwm1, HIGH); - digitalWrite(m3pwm2, LOW); - Serial.println("0 deg"); - }else if (direction>30 && direction <= 90){ - //60 deg - Serial.println("60deg"); - digitalWrite(m1pwm1, LOW); - digitalWrite(m1pwm2, LOW); - - digitalWrite(m2pwm1, LOW); - digitalWrite(m2pwm2, HIGH); - - digitalWrite(m3pwm1, LOW); - digitalWrite(m3pwm2, HIGH); - }else if (direction>90 && direction <= 150){ - //120 deg - Serial.println("120 deg"); - digitalWrite(m1pwm1, HIGH); - digitalWrite(m1pwm2, LOW); - digitalWrite(m2pwm1, HIGH); - digitalWrite(m2pwm2, LOW); - digitalWrite(m3pwm1, LOW); - digitalWrite(m3pwm2, LOW); - }else if (direction > 150 && direction <= 210) { - //180 degrees - Serial.println("on 180"); - digitalWrite(m1pwm1, LOW); - digitalWrite(m1pwm2, HIGH); - - digitalWrite(m2pwm1, LOW); - digitalWrite(m2pwm2, LOW); - - digitalWrite(m3pwm1, LOW); - digitalWrite(m3pwm2, HIGH); - }else if (direction > 210 && direction <= 270) { - //240 degrees - digitalWrite(m1pwm1, LOW); - digitalWrite(m1pwm2, LOW); - - digitalWrite(m2pwm1, HIGH); - digitalWrite(m2pwm2, LOW); - - digitalWrite(m3pwm1, LOW); - digitalWrite(m3pwm2, HIGH); - }else if (direction > 270 && direction <= 330) { - //300 degrees - digitalWrite(m1pwm1, HIGH); - digitalWrite(m1pwm2, LOW); - - digitalWrite(m2pwm1, HIGH); - digitalWrite(m2pwm2, LOW); - - Serial.println("300deg"); - digitalWrite(m3pwm1, LOW); - digitalWrite(m3pwm2, LOW); - }else{ - Serial.println("how?"); - } -} - -// the loop routine runs over and over again forever: -void loop() { - - drive(600, 0); - Serial.println("ffor"); - delay(1500); - -} diff --git a/nutige-bronnen.txt b/nutige-bronnen.txt index 40b656b..aa772a6 100644 --- a/nutige-bronnen.txt +++ b/nutige-bronnen.txt @@ -11,7 +11,7 @@ nuttige dingen om te weten specifieke dingen: git: #versie controle systeem https://en.wikipedia.org/wiki/Git - https://docs.github.com/en/authentication/connecting-to-github-with-ssh/adding-a-new-ssh-key-to-your-github-account # setup git + https://docs.github.com/en/authentication/ # setup git https://stackoverflow.com/questions/13321556/difference-between-git-and-github https://git-scm.com/about/branching-and-merging https://github.com/apps/desktop |
