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https://github.com/liatemplates/avr8js

A port of AVR8js simulator to LiaScript
https://github.com/liatemplates/avr8js

avr avr8js-simulator liascript liascript-template simulator

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A port of AVR8js simulator to LiaScript

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README

          

[![LiaScript](https://raw.githubusercontent.com/LiaScript/LiaScript/master/badges/course.svg)](https://LiaScript.github.io/course/?https://raw.githubusercontent.com/LiaTemplates/AVR8js/main/README.md)

# AVR8js - Template

--{{0}}--
This document defines some basic macros for integrating the Arduino Simulator
[AVR8js](https://github.com/wokwi/avr8js) into
[LiaScript](https://LiaScript.github.io) and to make Markdown code-blocks
executable.

__Try it on LiaScript:__

https://liascript.github.io/course/?https://raw.githubusercontent.com/liaTemplates/AVR8js/main/README.md

__See the project on Github:__

https://github.com/liaTemplates/AVR8js

--{{1}}--
There are three ways to use this template. The easiest way is to use the
`import` statement and the url of the raw text-file of the master branch or any
other branch or version. But you can also copy the required functionionality
directly into the header of your Markdown document, see therefor the [last
slide](#implementation). And of course, you could also clone this project and
change it, as you wish.

{{1}}
1. Load the macros via

`import: https://raw.githubusercontent.com/liaTemplates/AVR8js/main/README.md`

2. Copy the definitions into your Project

3. Clone this repository on GitHub

## `@AVR8js.sketch`

If you only have a simple sketch-file that you want to execute, then simply
add `@AVR8js.sketch` to the end of your code-block, to make it executable and
editable. All errors within your code will be displayed in the terminal as well
as in the editor. Serial.IO is already connected.

```` markdown
``` cpp
void setup() {
Serial.begin(9600);
}

void loop() {
while (Serial.available() > 0 ) {

String str = Serial.readString();

if (str.equals("send")) {
Serial.println("identified");
} else {
Serial.println("unknown");
}
}
}
```
@AVR8js.sketch
````

The project tries to attach all pins of your wokwi-webcomponents automatically
to the simulation, based on the defined pins. If you want to run multiple
simulations on one side, you can hide the relevant wokwi-elements within a div
or span and pass the id of that element to `@AVR8js.sketch`. If you do not pass
an id, all visible elements within a section will be attached to the simulation.
If an element with the id `simulation-time` is present, this element will be
updated with the current simulation time.

```` markdown


``` cpp
byte leds[] = {13, 12, 11, 10};
void setup() {
Serial.begin(115200);
for (byte i = 0; i < sizeof(leds); i++) {
pinMode(leds[i], OUTPUT);
}
}

int i = 0;
void loop() {
Serial.print("LED: ");
Serial.println(i);
digitalWrite(leds[i], HIGH);
delay(250);
digitalWrite(leds[i], LOW);
i = (i + 1) % sizeof(leds);
}
```
@AVR8js.sketch(example)
````

## `@AVR8js.project`

If you have a more complex example, you can also create a LiaScript project by
defining multiple code blocks, the names in the head are optional, but the the
naming in the `@AVR8js.project` has to match your code blocks and one
`sketch.ino` file must exist. Checkout the last section for a more complex
example.

```` markdown

...

``` cpp params.h
byte leds[] = {13, 12, 11, 10};
```
``` cpp sketch.ino
#import params.h
void setup() {
Serial.begin(115200);
for (byte i = 0; i < sizeof(leds); i++) {
pinMode(leds[i], OUTPUT);
}
}

int i = 0;
void loop() {
Serial.print("LED: ");
Serial.println(i);
digitalWrite(leds[i], HIGH);
delay(250);
digitalWrite(leds[i], LOW);
i = (i + 1) % sizeof(leds);
}
```
@AVR8js.project( ,params.h,sketch.ino)
````

## `@AVR8js.asm`

todo

## Examples

### Serial.read

``` cpp
void setup() {
Serial.begin(9600);
}

void loop() {
while (Serial.available() > 0 ) {

String str = Serial.readString();

if (str.equals("send")) {
Serial.println("identified");
} else {
Serial.println("unknown");
}
}
}
```
@AVR8js.sketch

### LED


``` cpp
byte leds[] = {13, 12, 11, 10};
void setup() {
Serial.begin(115200);
for (byte i = 0; i < sizeof(leds); i++) {
pinMode(leds[i], OUTPUT);
}
}

int i = 0;
void loop() {
Serial.print("LED: ");
Serial.println(i);
digitalWrite(leds[i], HIGH);
delay(250);
digitalWrite(leds[i], LOW);
i = (i + 1) % sizeof(leds);
}
```
@AVR8js.sketch(example1)

### Buttons







``` cpp
void setup() {
Serial.begin(115200);
pinMode(2, INPUT_PULLUP);
pinMode(3, INPUT_PULLUP);
pinMode(11, OUTPUT);
pinMode(12, OUTPUT);
pinMode(13, OUTPUT);
}

int i = 0;
void loop() {
bool green = digitalRead(2);
bool red = digitalRead(3);
Serial.print("LED: ");
Serial.println(i);

digitalWrite(11, green);
digitalWrite(13, red);
delay(250);

i += 1;

digitalWrite(12, i % 2);
}
```
@AVR8js.sketch(buttons-experiment)

### Assembly

``` asm
; Created: 25/11/2019 9:45:37 AM
; Author : Annon

; defining some labels to make the code easier to read
LEDs = 20
Switches = 21
outer = 22
inner = 23
inner1 = 24

; GPIO registers (according to datasheet)
DDRA = 0x1
PORTA = 0x2
PINC = 0x6
DDRC = 0x7
PORTC = 0x8

.text
.section .rodata
.string "Look ma, I'm on a chip!!" ; :P

.text
.org 0000 ; start the code at 0x0000 - we arent using interrupts so don't waste space on them
.global Start
Start:
clr r19
OUT DDRC, r19
ser r19
OUT DDRA, r19
OUT PORTC, r19

Loop:
in Switches,PINC ; read switches
com Switches ; invert
cbr Switches, 0x7F ; mask out the lower 7 bits
cpi r21, 0x80 ; compare r21 with 0x80
breq setLeds ; turn on leds
brne clrLeds ; make sure the leds turn off if not set

setLeds:
ser LEDs ; set all bits high
out PORTA, LEDs ; send them to the leds
rcall wait ; wait ~1s
clr LEDs ; set all bits low
out PORTA, LEDs ; send them to the leds
rcall wait ; wait ~1s
rjmp Loop ; jump back to main loop

clrLeds:
clr LEDs ; set all bits low
out PORTA, LEDs ; send them to the leds
rjmp Loop ; jump back to main loop

wait: ; 255 * 252 * 83 * 3 = 16000740/16mhz = 1.0004625s
ldi outer,0
waitouter:
rcall waitinner
dec outer
brne waitouter
ret
waitinner:
ldi inner,253
waitinner1:
rcall waitininner
dec inner
brne waitinner1
ret
waitininner:
ldi inner1,84
waitininner1:
dec inner1
brne waitininner1
ret
```
@AVR8js.asm

### 7-Segment


``` cpp
byte leds[] = {13, 12, 11, 10};
void setup() {
Serial.begin(115200);
for (byte i = 0; i < sizeof(leds); i++) {
pinMode(leds[i], OUTPUT);
}
}

int i = 0;
void loop() {
Serial.print("LED: ");
Serial.println(i);
digitalWrite(leds[i], HIGH);
delay(250);
digitalWrite(leds[i], LOW);
i = (i + 1) % sizeof(leds);
}
```
@AVR8js.sketch(7-experiment)

### Buzzer






``` cpp
byte leds[] = {13, 12, 11, 10};
void setup() {
Serial.begin(115200);
for (byte i = 0; i < sizeof(leds); i++) {
pinMode(leds[i], OUTPUT);
}
}

int i = 0;
void loop() {
Serial.print("BUZZER: ");
Serial.println(i);
digitalWrite(leds[i], HIGH);
delay(250);
digitalWrite(leds[i], LOW);
i = (i + 1) % sizeof(leds);
}
```
@AVR8js.sketch(example1)

### Arduino-Mega

### Arduino-Uno

### Arduino-Nano

### DHT22

### LCD1602

``` cpp
#include

#define I2C_ADDR 0x27
#define LCD_COLUMNS 20
#define LCD_LINES 4

LiquidCrystal_I2C lcd(I2C_ADDR, LCD_COLUMNS, LCD_LINES);

void setup() {
// Init
lcd.init();
lcd.backlight();

// Print something
lcd.setCursor(3, 0);
lcd.print("Hello, world!");
lcd.setCursor(2, 1);
lcd.print("Wokwi Online IoT");
lcd.setCursor(5, 2);
lcd.print("Simulator");
lcd.setCursor(7, 3);
lcd.print("Enjoy!");
}

void loop() {
}
```
@AVR8js.sketch

### Membrane-Keypad

### Neopixel

### Neopixel-Matrix


``` cpp
#include "FastLED.h"

// Matrix size
#define NUM_ROWS 9
#define NUM_COLS 9

// LEDs pin
#define DATA_PIN 3

// LED brightness
#define BRIGHTNESS 180

#define NUM_LEDS NUM_ROWS * NUM_COLS

// Define the array of leds
CRGB leds[NUM_LEDS];

void setup() {
FastLED.addLeds(leds, NUM_LEDS);
FastLED.setBrightness(BRIGHTNESS);
}

int counter = 0;
void loop() {
for (byte row = 0; row < NUM_ROWS; row++) {
for (byte col = 0; col < NUM_COLS; col++) {
int delta = abs(NUM_ROWS - row * 2) + abs(NUM_COLS - col * 2);
leds[row * NUM_COLS + col] = CHSV(delta * 4 + counter, 255, 255);
}
}
FastLED.show();
delay(5);
counter++;
}
```
@AVR8js.sketch(matrix-experiment)

### Potentiometer

### Resistor

### Rotary-Dialer

### Servo

### SSD1306


``` cpp
#include
#include
#include

#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64

Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

void setup() {
display.begin(SSD1306_SWITCHCAPVCC, 0x3D);
display.display();
delay(1000);
}

int counter = 0;
void loop() {
display.clearDisplay();
display.setTextSize(1);
display.setTextColor(SSD1306_WHITE);
display.setCursor(4, 4);
display.println(F("Hello, Wokwi!"));
display.setTextSize(2);
display.setCursor(54, 24);
display.println(counter);
display.display();
counter++;
delay(1000);
}
```
@AVR8js.sketch(ssd1306-experiment)

### Projects

> Example not working yet ...










``` cpp sketch.ino
/**
Simon Game for Arduino

Copyright (C) 2016, Uri Shaked

Licensed under the MIT License.
*/

#include "pitches.h"

/* Constants - define pin numbers for leds, buttons and speaker, and also the game tones */
char ledPins[] = {9, 10, 11, 12};
char buttonPins[] = {2, 3, 4, 5};
#define SPEAKER_PIN 8

// If you run this code directly on the WeMos D1 Mini Board, use the following pin mapping:
//char ledPins[] = {D1, D3, D0, D8};
//char buttonPins[] = {D4, D5, D6, D7};
//#define SPEAKER_PIN D2

#define MAX_GAME_LENGTH 100

int gameTones[] = { NOTE_G3, NOTE_C4, NOTE_E4, NOTE_G5};

/* Global variales - store the game state */
byte gameSequence[MAX_GAME_LENGTH] = {0};
byte gameIndex = 0;

/**
Set up the Arduino board and initialize Serial communication
*/
void setup() {
Serial.begin(9600);
for (int i = 0; i < 4; i++) {
pinMode(ledPins[i], OUTPUT);
pinMode(buttonPins[i], INPUT_PULLUP);
}
pinMode(SPEAKER_PIN, OUTPUT);
// The following line primes the random number generator. It assumes pin A0 is floating (disconnected)
randomSeed(analogRead(A0));
}

/**
Lights the given led and plays the suitable tone
*/
void lightLedAndPlaySound(byte ledIndex) {
digitalWrite(ledPins[ledIndex], HIGH);
tone(SPEAKER_PIN, gameTones[ledIndex]);
delay(300);
digitalWrite(ledPins[ledIndex], LOW);
noTone(SPEAKER_PIN);
}

/**
Plays the current sequence of notes that the user has to repeat
*/
void playSequence() {
for (int i = 0; i < gameIndex; i++) {
char currentLed = gameSequence[i];
lightLedAndPlaySound(currentLed);
delay(50);
}
}

/**
Waits until the user pressed one of the buttons, and returns the index of that button
*/
byte readButton() {
for (;;) {
for (int i = 0; i < 4; i++) {
byte buttonPin = buttonPins[i];
if (digitalRead(buttonPin) == LOW) {
return i;
}
}
delay(1);
}
}

/**
Play the game over sequence, and report the game score
*/
void gameOver() {
Serial.print("Game over! your score: ");
Serial.println(gameIndex - 1);
gameIndex = 0;
delay(200);
// Play a Wah-Wah-Wah-Wah sound
tone(SPEAKER_PIN, NOTE_DS5);
delay(300);
tone(SPEAKER_PIN, NOTE_D5);
delay(300);
tone(SPEAKER_PIN, NOTE_CS5);
delay(300);
for (int i = 0; i < 200; i++) {
tone(SPEAKER_PIN, NOTE_C5 + (i % 20 - 10));
delay(5);
}
noTone(SPEAKER_PIN);
delay(500);
}

/**
Get the user input and compare it with the expected sequence. If the user fails, play the game over sequence and restart the game.
*/
void checkUserSequence() {
for (int i = 0; i < gameIndex; i++) {
char expectedButton = gameSequence[i];
char actualButton = readButton();
lightLedAndPlaySound(actualButton);
if (expectedButton == actualButton) {
/* good */
} else {
gameOver();
return;
}
}
}

/**
Plays an hooray sound whenever the user finishes a level
*/
void levelUp() {
tone(SPEAKER_PIN, NOTE_E4);
delay(150);
tone(SPEAKER_PIN, NOTE_G4);
delay(150);
tone(SPEAKER_PIN, NOTE_E5);
delay(150);
tone(SPEAKER_PIN, NOTE_C5);
delay(150);
tone(SPEAKER_PIN, NOTE_D5);
delay(150);
tone(SPEAKER_PIN, NOTE_G5);
delay(150);
noTone(SPEAKER_PIN);
}

/**
The main game loop
*/
void loop() {
// Add a random color to the end of the sequence
gameSequence[gameIndex] = random(0, 4);
gameIndex++;

playSequence();
checkUserSequence();
delay(300);

if (gameIndex > 0) {
levelUp();
delay(300);
}
}
```
``` cpp -piches.h
/*************************************************
* Public Constants
*************************************************/

#define NOTE_B0 31
#define NOTE_C1 33
#define NOTE_CS1 35
#define NOTE_D1 37
#define NOTE_DS1 39
#define NOTE_E1 41
#define NOTE_F1 44
#define NOTE_FS1 46
#define NOTE_G1 49
#define NOTE_GS1 52
#define NOTE_A1 55
#define NOTE_AS1 58
#define NOTE_B1 62
#define NOTE_C2 65
#define NOTE_CS2 69
#define NOTE_D2 73
#define NOTE_DS2 78
#define NOTE_E2 82
#define NOTE_F2 87
#define NOTE_FS2 93
#define NOTE_G2 98
#define NOTE_GS2 104
#define NOTE_A2 110
#define NOTE_AS2 117
#define NOTE_B2 123
#define NOTE_C3 131
#define NOTE_CS3 139
#define NOTE_D3 147
#define NOTE_DS3 156
#define NOTE_E3 165
#define NOTE_F3 175
#define NOTE_FS3 185
#define NOTE_G3 196
#define NOTE_GS3 208
#define NOTE_A3 220
#define NOTE_AS3 233
#define NOTE_B3 247
#define NOTE_C4 262
#define NOTE_CS4 277
#define NOTE_D4 294
#define NOTE_DS4 311
#define NOTE_E4 330
#define NOTE_F4 349
#define NOTE_FS4 370
#define NOTE_G4 392
#define NOTE_GS4 415
#define NOTE_A4 440
#define NOTE_AS4 466
#define NOTE_B4 494
#define NOTE_C5 523
#define NOTE_CS5 554
#define NOTE_D5 587
#define NOTE_DS5 622
#define NOTE_E5 659
#define NOTE_F5 698
#define NOTE_FS5 740
#define NOTE_G5 784
#define NOTE_GS5 831
#define NOTE_A5 880
#define NOTE_AS5 932
#define NOTE_B5 988
#define NOTE_C6 1047
#define NOTE_CS6 1109
#define NOTE_D6 1175
#define NOTE_DS6 1245
#define NOTE_E6 1319
#define NOTE_F6 1397
#define NOTE_FS6 1480
#define NOTE_G6 1568
#define NOTE_GS6 1661
#define NOTE_A6 1760
#define NOTE_AS6 1865
#define NOTE_B6 1976
#define NOTE_C7 2093
#define NOTE_CS7 2217
#define NOTE_D7 2349
#define NOTE_DS7 2489
#define NOTE_E7 2637
#define NOTE_F7 2794
#define NOTE_FS7 2960
#define NOTE_G7 3136
#define NOTE_GS7 3322
#define NOTE_A7 3520
#define NOTE_AS7 3729
#define NOTE_B7 3951
#define NOTE_C8 4186
#define NOTE_CS8 4435
#define NOTE_D8 4699
#define NOTE_DS8 4978
```
@AVR8js.project( ,sketch.ino,pitches.h)

## Implementation

The code below shows the implementation of the two macros. The `@AVR8js.project`
defines the main functionality, while `@AVR8js.sketch` only sets the default
file name and passes the id of the HTML-elmenent that contains all connected
wokwi-webcomponents.

This template utilizes a global AVR8js object that is currently defined in
`src/index.ts`. Code is compiled on https://hexi.wokwi.com/build and send back
for execution.

``` html
@@script: https://cdn.jsdelivr.net/gh/liatemplates/avr8js@0.0.7/dist/index.js

script: dist/index.js

@AVR8js.sketch: @AVR8js.project(@0,sketch.ino)

@AVR8js.project

let id = "@0"

let name = [
"@1", "@2", "@3", "@4", "@5", "@6", "@7", "@8", "@9"
]
.map((e) => e.trim())
.filter((e) => { return (e[0] !== '@' && e !== "") })

let content = [
`@input(0)`,
`@input(1)`,
`@input(2)`,
`@input(3)`,
`@input(4)`,
`@input(5)`,
`@input(6)`,
`@input(7)`,
`@input(8)`,
`@input(9)`
]

let sketch;
let files = []

for(let i=0; i<name.length; i++) {
if (name[i] == "sketch.ino") {
sketch = content[i]
} else {
files.push({name: name[i], content: content[i]})
}
}

AVR8js.build(sketch, files)
.then((e) => {
if (e.hex === "") {
let msgs = []

for(let i = 0; i<name.length; i++) {
msgs.push([])
}

let iter = e.stderr.matchAll(/(\w+\.\w+):(\d+):(\d+): ([^:]+):(.+)/g)

for(let err=iter.next(); !err.done; err=iter.next()) {
msgs[name.findIndex((e) => e==err.value[1])].push({
row : parseInt(err.value[2]) - 1,
column : parseInt(err.value[3]),
text : err.value[5],
type : err.value[4]
})
}
send.lia(e.stderr, msgs, false)
send.lia("LIA: stop")
}
else {
console.debug(e.stdout)

if (e.hex) {
let runner = AVR8js.execute(e.hex, console.stream, id)

send.handle("input", (input) => {
runner.serial(input.slice(0, -1))
})

send.lia("LIA: terminal")

send.handle("stop", e => {
if(runner) {
runner.stop()
runner = null
console.debug("execution stopped")
}
})
} else {
send.lia("LIA: stop")
}
}
})
"LIA: wait"

@end

@AVR8js.asm

let id = "@0"

AVR8js.buildASM(`@input`)
.then((e) => {
if (e.hex === "") {
let msgs = []

let iter = e.stderr.matchAll(/main\.s:(\d+):(\d+): ([^:]+):(.+)/g)

for(let err=iter.next(); !err.done; err=iter.next()) {
msgs.push({
row : parseInt(err.value[1]) - 1,
column : parseInt(err.value[2]),
text : err.value[4],
type : err.value[3].toLower()
})
}
send.lia(e.stderr, [msgs], false)
send.lia("LIA: stop")
}
else {
console.debug(e.stdout)

if (e.hex) {
let runner = AVR8js.execute(e.hex, console.stream, id)

send.handle("input", (input) => {
runner.serial(input.slice(0, -1))
})

send.lia("LIA: terminal")

send.handle("stop", e => {
if(runner) {
runner.stop()
runner = null
console.debug("execution stopped")
}
})
} else {
send.lia("LIA: stop")
}
}
})
"LIA: wait"

@end
```