QuickJS Javascript Engine

• https://bellard.org/quickjs/
• https://github.com/bellard/quickjs

The main documentation is in doc/quickjs.pdf or doc/quickjs.html.

Build with platform.io (ESP32)

Exampes: https://github.com/binzume/esp32quickjs-examples

platformio.ini

add git url to lib_deps.

lib_deps = 
	https://github.com/binzume/esp32quickjs.git

main.cpp

include esp/QuickJS.h.

#include <Arduino.h>
#include "esp/QuickJS.h"

static const char *jscode = R"CODE(
  console.log('Hello, JavaScript!');
)CODE";

M5QuickJS qjs;

void setup() {
  Serial.begin(115200);
  qjs.begin();
  qjs.exec(jscode);
}

JavaScript API

• console.log(string)
• setTimeout(callback, ms) : int
• setInterval(callback, ms) : int
• clearTimeout(id)

esp32 module

• esp32.millis() : int
• esp32.digitalRead(pin) : int
• esp32.digitalWrite(pin, value) // value=0: LOW, 1: HIGH
• esp32.pinMode(pin, mode) // mode=1: INPUT, 2: OUTPUT
• esp32.setLoop(func) // func is called every arduino loop().
• esp32.deepSleep(us) // not returns

if WiFi.h is included:

• esp32.isWifiConnected() : bool
• esp32.fetch(url, {method:string, body:string}): Promise<{body:string, status:int}>

License

MIT License