Constructor bugfix, upgrades and new methods

murilopolese · murilopolese · commit 8f9f2146e7e7 · 2022-07-31T20:52:41.000+02:00
- Making sure constructor doesn't throw an error if initialised without 
parameters
- Simplifying `enter_raw_repl` parameters
- Simplifying `eval` parameters
- listPorts
- stop
- software reset
diff --git a/micropython.js b/micropython.js
@@ -13,25 +13,28 @@ function sleep(millis) {
 
 class MicroPythonBoard {
   constructor(options) {
-    const { device, autoOpen = false } = options
+    const { device, autoOpen = false } = options || {}
     this.device = device || {}
     this.in_raw_repl = false
     this.use_raw_paste = true
 
-    this.serial = new SerialPort({
-      path: device,
-			baudRate: 115200,
-      lock: false,
-			autoOpen: false
-		})
-
     if (autoOpen) {
       this.open()
     }
 
   }
 
+	async listPorts() {
+		return await SerialPort.list()
+	}
+
   open() {
+		this.serial = new SerialPort({
+      path: this.device,
+			baudRate: 115200,
+      lock: false,
+			autoOpen: false
+		})
     return new Promise((resolve, reject) => {
       this.serial.open((err) => {
         if (err) {
@@ -53,7 +56,9 @@ class MicroPythonBoard {
 
   read_until(options) {
     const {
-      ending = `\n`, timeout = null, data_consumer = () => false
+      ending = `\n`,
+      timeout = null,
+      data_consumer = () => false
     } = options || {}
     return new Promise((resolve, reject) => {
       const parser = this.serial.pipe(new ReadlineParser({ delimiter: ending }))
@@ -71,8 +76,7 @@ class MicroPythonBoard {
     })
   }
 
-  enter_raw_repl(options) {
-    const { timeout = null } = options || {}
+  enter_raw_repl(timeout) {
     return new Promise(async (resolve, reject) => {
       // ctrl-C twice: interrupt any running program
       await this.serial.write(Buffer.from(`\r\x03\x03`))
@@ -168,9 +172,20 @@ class MicroPythonBoard {
     return this.follow({ timeout })
   }
 
-  async eval(options) {
-    const { command = '' } = options || {}
-    return await this.serial.write(Buffer.from(command))
+  async eval(k) {
+    return await this.serial.write(Buffer.from(k))
+  }
+
+  async stop() {
+    // Dismiss any data with ctrl-C
+    await this.serial.write(Buffer.from(`\x03`))
+  }
+
+  async reset() {
+    // Dismiss any data with ctrl-C
+    await this.serial.write(Buffer.from(`\x03`))
+    // Soft reboot
+    await this.serial.write(Buffer.from(`\x04`))
   }
 
   async execfile(filePath) {
@@ -191,7 +206,6 @@ class MicroPythonBoard {
     })
     console.log(output)
     return this.exit_raw_repl()
-    return Promise.reject()
   }
 
   async fs_cat(filePath) {
