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Added buzzer support to the WeDo 2.0 Smart Hub

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This commit is contained in:
Nathan Kunicki 2018-07-26 17:58:28 +01:00
parent 364607f1b1
commit 98620bce72
3 changed files with 49 additions and 3 deletions
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14
DOCS.md
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@ -296,6 +296,7 @@ Emits when an attached motor or sensor is detached from the Hub.
* [new WeDo2Hub()](#new_WeDo2Hub_new)
* [.setLEDColor(color)](#WeDo2Hub+setLEDColor) ⇒ <code>Promise</code>
* [.setLEDRGB(red, green, blue)](#WeDo2Hub+setLEDRGB) ⇒ <code>Promise</code>
* [.playSound(frequency, time)](#WeDo2Hub+playSound) ⇒ <code>Promise</code>
* [.setMotorSpeed(port, speed)](#WeDo2Hub+setMotorSpeed) ⇒ <code>Promise</code>
* [.connect()](#Hub+connect) ⇒ <code>Promise</code>
* [.disconnect()](#Hub+disconnect) ⇒ <code>Promise</code>
@ -342,6 +343,19 @@ Set the color of the LED on the Hub via RGB values.
| green | <code>number</code> |
| blue | <code>number</code> |
<a name="WeDo2Hub+playSound"></a>
### weDo2Hub.playSound(frequency, time) ⇒ <code>Promise</code>
Play a sound on the Hub's in-built buzzer
**Kind**: instance method of [<code>WeDo2Hub</code>](#WeDo2Hub)
**Returns**: <code>Promise</code> - Resolved upon successful completion of command (ie. once the sound has finished playing).
| Param | Type | Description |
| --- | --- | --- |
| frequency | <code>number</code> | |
| time | <code>number</code> | How long the sound should play for (in milliseconds). |
<a name="WeDo2Hub+setMotorSpeed"></a>
### weDo2Hub.setMotorSpeed(port, speed) ⇒ <code>Promise</code>

14
README.md
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@ -346,6 +346,7 @@ Emits when an attached motor or sensor is detached from the Hub.
* [new WeDo2Hub()](#new_WeDo2Hub_new)
* [.setLEDColor(color)](#WeDo2Hub+setLEDColor) ⇒ <code>Promise</code>
* [.setLEDRGB(red, green, blue)](#WeDo2Hub+setLEDRGB) ⇒ <code>Promise</code>
* [.playSound(frequency, time)](#WeDo2Hub+playSound) ⇒ <code>Promise</code>
* [.setMotorSpeed(port, speed)](#WeDo2Hub+setMotorSpeed) ⇒ <code>Promise</code>
* [.connect()](#Hub+connect) ⇒ <code>Promise</code>
* [.disconnect()](#Hub+disconnect) ⇒ <code>Promise</code>
@ -392,6 +393,19 @@ Set the color of the LED on the Hub via RGB values.
| green | <code>number</code> |
| blue | <code>number</code> |
<a name="WeDo2Hub+playSound"></a>
### weDo2Hub.playSound(frequency, time) ⇒ <code>Promise</code>
Play a sound on the Hub's in-built buzzer
**Kind**: instance method of [<code>WeDo2Hub</code>](#WeDo2Hub)
**Returns**: <code>Promise</code> - Resolved upon successful completion of command (ie. once the sound has finished playing).
| Param | Type | Description |
| --- | --- | --- |
| frequency | <code>number</code> | |
| time | <code>number</code> | How long the sound should play for (in milliseconds). |
<a name="WeDo2Hub+setMotorSpeed"></a>
### weDo2Hub.setMotorSpeed(port, speed) ⇒ <code>Promise</code>

24
wedo2hub.ts
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@ -6,6 +6,7 @@ import { Port } from "./port.js";
import * as Consts from "./consts";
import Debug = require("debug");
import { resolve } from "path";
const debug = Debug("wedo2hub");
@ -80,14 +81,31 @@ export class WeDo2Hub extends Hub {
*/
public setLEDRGB (red: number, green: number, blue: number) {
return new Promise((resolve, reject) => {
let data = Buffer.from([0x01, 0x02, 0x06, 0x17, 0x01, 0x02]);
this._writeMessage(Consts.BLECharacteristics.WEDO2_MOTOR_VALUE_WRITE, data);
data = Buffer.from([0x06, 0x04, 0x03, red, green, blue]);
let data = Buffer.from([0x06, 0x17, 0x01, 0x02]);
this._writeMessage(Consts.BLECharacteristics.WEDO2_PORT_TYPE_WRITE, data);
data = Buffer.from([0x06, 0x04, 0x03, red, green, blue]);
this._writeMessage(Consts.BLECharacteristics.WEDO2_MOTOR_VALUE_WRITE, data);
return resolve();
});
}
/**
* Play a sound on the Hub's in-built buzzer
* @method WeDo2Hub#playSound
* @param {number} frequency
* @param {number} time How long the sound should play for (in milliseconds).
* @returns {Promise} Resolved upon successful completion of command (ie. once the sound has finished playing).
*/
public playSound (frequency: number, time: number) {
return new Promise((resolve, reject) => {
const data = Buffer.from([0x05, 0x02, 0x04, 0x00, 0x00, 0x00, 0x00]);
data.writeUInt16LE(frequency, 3);
data.writeUInt16LE(time, 5);
this._writeMessage(Consts.BLECharacteristics.WEDO2_MOTOR_VALUE_WRITE, data);
setTimeout(resolve, time);
});
}
/**
* Set the motor speed on a given port.