sd card

workshops/arduino-programming/emulator-examples/SD_card/.gitignore

@@ -0,0 +1,5 @@
+.pio
+.vscode/.browse.c_cpp.db*
+.vscode/c_cpp_properties.json
+.vscode/launch.json
+.vscode/ipch

workshops/arduino-programming/emulator-examples/SD_card/README.md

@@ -0,0 +1 @@
+Basic reading and writing to an SD card

workshops/arduino-programming/emulator-examples/SD_card/diagram.json

@@ -0,0 +1,35 @@
+{
+  "version": 1,
+  "author": "Uri Shaked",
+  "editor": "wokwi",
+  "parts": [
+    { "type": "wokwi-arduino-uno", "id": "uno", "top": 71.32, "left": -100.01, "attrs": {} },
+    {
+      "type": "wokwi-microsd-card",
+      "id": "sd1",
+      "top": -33.33,
+      "left": 14.67,
+      "rotate": 90,
+      "attrs": {}
+    },
+    {
+      "type": "wokwi-ntc-temperature-sensor",
+      "id": "ntc1",
+      "top": 319.4,
+      "left": 162.6,
+      "attrs": {}
+    }
+  ],
+  "connections": [
+    [ "sd1:SCK", "uno:13", "green", [ "v18", "h-31" ] ],
+    [ "sd1:GND", "uno:GND.1", "black", [ "v21", "h-48" ] ],
+    [ "sd1:DO", "uno:12", "green", [ "v24", "h-42" ] ],
+    [ "sd1:DI", "uno:11", "green", [ "v14", "h6" ] ],
+    [ "sd1:CS", "uno:10", "green", [ "v7", "h21" ] ],
+    [ "uno:5V", "sd1:VCC", "red", [ "v11", "h-89", "v-220", "h79" ] ],
+    [ "ntc1:GND", "uno:GND.3", "black", [ "h0" ] ],
+    [ "ntc1:OUT", "uno:A0", "green", [ "h38.4", "v-76.9", "h-230.4" ] ],
+    [ "ntc1:VCC", "uno:VIN", "red", [ "h9.6", "v-38.4", "h-220.8" ] ]
+  ],
+  "dependencies": {}
+}

workshops/arduino-programming/emulator-examples/SD_card/include/README

@@ -0,0 +1,39 @@
+
+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 usual convention is to give header files names that end with `.h'.
+It is most portable to use only letters, digits, dashes, and underscores in
+header file names, and at most one dot.
+
+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

workshops/arduino-programming/emulator-examples/SD_card/lib/README

@@ -0,0 +1,46 @@
+
+This directory is intended for project specific (private) libraries.
+PlatformIO will compile them to static libraries and link into executable file.
+
+The source code of each library should be placed in a an own separate directory
+("lib/your_library_name/[here are source files]").
+
+For example, see a structure of the following two libraries `Foo` and `Bar`:
+
+|--lib
+|  |
+|  |--Bar
+|  |  |--docs
+|  |  |--examples
+|  |  |--src
+|  |     |- Bar.c
+|  |     |- Bar.h
+|  |  |- library.json (optional, 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
+
+and a contents of `src/main.c`:
+```
+#include <Foo.h>
+#include <Bar.h>
+
+int main (void)
+{
+  ...
+}
+
+```
+
+PlatformIO Library Dependency Finder will find automatically dependent
+libraries scanning project source files.
+
+More information about PlatformIO Library Dependency Finder
+- https://docs.platformio.org/page/librarymanager/ldf.html

workshops/arduino-programming/emulator-examples/SD_card/platformio.ini

@@ -0,0 +1,16 @@
+; 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:uno]
+platform = atmelavr
+board = uno
+framework = arduino
+lib_deps =
+     arduino-libraries/SD@^1.2.4

workshops/arduino-programming/emulator-examples/SD_card/src/main.cpp

@@ -0,0 +1,100 @@
+#include <Arduino.h>
+#include <SD.h>
+
+#define CS_PIN 10
+
+File root;
+File myFile;
+
+
+void printDirectory(File dir, int numTabs) {
+  while (true) {
+
+    File entry =  dir.openNextFile();
+    if (! entry) {
+      // no more files
+      break;
+    }
+    for (uint8_t i = 0; i < numTabs; i++) {
+      Serial.print('\t');
+    }
+    Serial.print(entry.name());
+    if (entry.isDirectory()) {
+      Serial.println("/");
+      printDirectory(entry, numTabs + 1);
+    } else {
+      // files have sizes, directories do not
+      Serial.print("\t\t");
+      Serial.println(entry.size(), DEC);
+    }
+    entry.close();
+  }
+}
+
+void setup() {
+  Serial.begin(115200);
+
+  Serial.print("Initializing SD card... ");
+
+  if (!SD.begin(CS_PIN)) {
+    Serial.println("Card initialization failed!");
+    while (true);
+  }
+
+  Serial.println("initialization done.");
+
+  Serial.println("Files in the card:");
+  root = SD.open("/");
+  printDirectory(root, 0);
+  Serial.println("");
+
+  // Example of reading file from the card:
+  //File textFile = SD.open("wokwi.txt");
+  //if (textFile) {
+  //  Serial.print("wokwi.txt: ");
+  //  while (textFile.available()) {
+  //    Serial.write(textFile.read());
+  //  }
+  //  textFile.close();
+  //} else {
+  //  Serial.println("error opening wokwi.txt!");
+  //}
+}
+
+void loop() {
+  // open the file. note that only one file can be open at a time,
+  // so you have to close this one before opening another.
+  myFile = SD.open("test.txt", FILE_WRITE);
+
+  // if the file opened okay, write to it:
+  if (myFile) {
+    Serial.print("Writing to test.txt...");
+    myFile.println("testing 1, 2, 3.");
+    // close the file:
+    myFile.close();
+    Serial.println("done.");
+  } else {
+    // if the file didn't open, print an error:
+    Serial.println("error opening test.txt");
+  }
+
+  // re-open the file for reading:
+  myFile = SD.open("test.txt");
+  if (myFile) {
+    Serial.println("test.txt:");
+
+    // read from the file until there's nothing else in it:
+    while (myFile.available()) {
+      Serial.write(myFile.read());
+    }
+    // close the file:
+    myFile.close();
+  } else {
+    // if the file didn't open, print an error:
+    Serial.println("error opening test.txt");
+  }
+  delay(10000);
+}
+
+
+

workshops/arduino-programming/emulator-examples/SD_card/test/README

@@ -0,0 +1,11 @@
+
+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

workshops/arduino-programming/emulator-examples/SD_card/wokwi.toml

@@ -0,0 +1,4 @@
+[wokwi]
+version=1
+firmware='.pio/build/uno/firmware.hex'
+elf='.pio/build/uno/firmware.elf'

workshops/arduino-programming/emulator-examples/thermistor/.gitignore

@@ -0,0 +1,5 @@
+.pio
+.vscode/.browse.c_cpp.db*
+.vscode/c_cpp_properties.json
+.vscode/launch.json
+.vscode/ipch

workshops/arduino-programming/emulator-examples/thermistor/README.md

@@ -0,0 +1,3 @@
+You just bought your Arduino and opened the box!
+
+This is a template for other projects

workshops/arduino-programming/emulator-examples/thermistor/diagram.json

@@ -0,0 +1,21 @@
+{
+  "version": 1,
+  "author": "Anonymous maker",
+  "editor": "wokwi",
+  "parts": [
+    { "type": "wokwi-arduino-uno", "id": "uno", "top": 0, "left": 0, "attrs": {} },
+    {
+      "type": "wokwi-ntc-temperature-sensor",
+      "id": "ntc1",
+      "top": -130.63,
+      "left": 11.15,
+      "attrs": { "beta": "3950", "temperature": "33" }
+    }
+  ],
+  "connections": [
+    [ "ntc1:OUT", "uno:A0", "green", [ "h178", "v319", "h-81" ] ],
+    [ "ntc1:VCC", "uno:VIN", "red", [ "h206", "v351", "h-137" ] ],
+    [ "ntc1:GND", "uno:GND.1", "black", [ "h26", "v78", "h-58" ] ]
+  ],
+  "dependencies": {}
+}

workshops/arduino-programming/emulator-examples/thermistor/include/README

@@ -0,0 +1,39 @@
+
+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 usual convention is to give header files names that end with `.h'.
+It is most portable to use only letters, digits, dashes, and underscores in
+header file names, and at most one dot.
+
+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

workshops/arduino-programming/emulator-examples/thermistor/lib/README

@@ -0,0 +1,46 @@
+
+This directory is intended for project specific (private) libraries.
+PlatformIO will compile them to static libraries and link into executable file.
+
+The source code of each library should be placed in a an own separate directory
+("lib/your_library_name/[here are source files]").
+
+For example, see a structure of the following two libraries `Foo` and `Bar`:
+
+|--lib
+|  |
+|  |--Bar
+|  |  |--docs
+|  |  |--examples
+|  |  |--src
+|  |     |- Bar.c
+|  |     |- Bar.h
+|  |  |- library.json (optional, 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
+
+and a contents of `src/main.c`:
+```
+#include <Foo.h>
+#include <Bar.h>
+
+int main (void)
+{
+  ...
+}
+
+```
+
+PlatformIO Library Dependency Finder will find automatically dependent
+libraries scanning project source files.
+
+More information about PlatformIO Library Dependency Finder
+- https://docs.platformio.org/page/librarymanager/ldf.html