Update example

Author: vshymanskyy

README.md

@@ -10,7 +10,7 @@ This library can be used with
 ## Supported devices
 The library was verified to work with:
 
-`ESP8266`, `ESP32`, `Arduino 101`, `MKR1000`, `RTL8711`, `BluePill`, `Particle Photon`, `Particle Electron`, `nRF51`, `nRF52`, `Teensy 3.1/3.2`
+`ESP8266`, `ESP32`, `Arduino 101`, `MKR1000`, `RTL8711`, `ST Nucleo WB55RG`, `BluePill`, `Particle Photon`, `Particle Electron`, `nRF51`, `nRF52`, `Teensy 3.1/3.2`, `Teensy 4.0`
 
 **Note:** it requires at least **~64Kb** Flash and **~10Kb** RAM even for minimal functionality.
 

wasm_apps/README.md

@@ -19,10 +19,9 @@ To rebuild, use `build.sh`.
 
 Before building the app, please install npm dependencies:
 ```sh
-yarn install
-# or: npm install
+npm install    # or yarn install
 ```
-To rebuild, use `npm run build` or `build.sh`.
+To rebuild, use `npm run build`.
 
 ## TinyGo app
 

wasm_apps/assemblyscript/.gitignore

@@ -1 +1,2 @@
 node_modules/
+.wat

wasm_apps/assemblyscript/app.ts

@@ -1,6 +1,6 @@
 import * as dev from "./arduino";
 
-let LED: u32 = dev.getPinLED();
+let LED = dev.getPinLED();
 
 function setup(): void {
   dev.pinMode(LED, dev.OUTPUT);
@@ -18,6 +18,8 @@ function run(): void {
  */
 export function _start(): void {
   setup();
-  while (1) run();
+  while (1) {
+    run();
+  }
 }
 

wasm_apps/assemblyscript/app.wat

@@ -1,9 +1,9 @@
-export const LOW: u32  = 0;
-export const HIGH: u32 = 1;
+export const LOW  = 0;
+export const HIGH = 1;
 
-export const INPUT: u32        = 0x0;
-export const OUTPUT: u32       = 0x1;
-export const INPUT_PULLUP: u32 = 0x2;
+export const INPUT        = 0x0;
+export const OUTPUT       = 0x1;
+export const INPUT_PULLUP = 0x2;
 
 
 export declare function millis(): u32;
@@ -12,10 +12,10 @@ export declare function pinMode(pin: u32, mode: u32): void;
 export declare function digitalWrite(pin: u32, value: u32): void;
 export declare function getPinLED(): u32;
 
-@external("print")        declare function _print(ptr: usize, len: i32): void;
+@external("print")        declare function _print(ptr: usize): void;
 
 export function print(str: string): void {
-  _print(changetype<usize>(String.UTF8.encode(str)), String.UTF8.byteLength(str))
+  _print(changetype<usize>(String.UTF8.encode(str, true)))
 }
 
 export function println(str: string): void {

wasm_apps/assemblyscript/arduino.ts

@@ -1,4 +1,5 @@
 {
+  "license": "MIT",
   "scripts": {
     "build": "npm run asbuild:optimized && xxd -i app.wasm > app.wasm.h",
     "asbuild:optimized": "npx asc app.ts -b app.wasm -t app.wat -O3z --runtime half --noAssert --use abort="

wasm_apps/assemblyscript/build.sh

@@ -6,7 +6,7 @@ wasicc  -Os                                                   \
         -o app.wasm app.cpp
 
 # Optimize (optional)
-#wasm-opt -O3 app.wasm -o app.wasm
+wasm-opt -O3 app.wasm -o app.wasm
 wasm-strip app.wasm
 
 # Convert to WAT

wasm_apps/assemblyscript/package.json

@@ -10,21 +10,23 @@ struct App {
 
 impl App {
     fn new() -> Self {
-        let led = get_pin_led();
-        pin_mode(led, OUTPUT);
+        let led = getPinLED();
+        pinMode(led, OUTPUT);
         Self { led }
     }
 
-    fn update(&self) {
-        digital_write(self.led, HIGH);
+    fn run(&self) {
+        digitalWrite(self.led, HIGH);
         delay(100);
-        digital_write(self.led, LOW);
+        digitalWrite(self.led, LOW);
         delay(900);
     }
 }
 
 #[no_mangle]
 pub extern fn _start() {
     let app = App::new();
-    loop { app.update() };
-}
+    loop {
+        app.run()
+    }
+}