04 ASR Speech Recognition Module

1. Goal

Learn how to use the ASR speech recognition module so CoCube can listen for your voice and respond to commands.

You will also try custom voice commands and build a simple voice-navigation program.

2. Materials

CoCube robot x 1 ASR speech recognition module Computer or tablet

3. Software Platform

MicroBlocks - CoCube & CoCube Module

4. Quick Start

Connect the hardware

Connect the MicroBlocks IDE to CoCube by USB or BLE.
Plug the ASR module firmly into CoCube.
Work in a fairly quiet place. Speak clearly and not too fast.

Add the library

Open Add Library and add CoCube Module. In this activity, we will use:

ASR get command, which reports the recognized command ID.
ASR play command _, which asks the ASR module to speak the reply for a command ID.

Try recognition and voice replies

Keep reading ASR get command in a loop.
Use the returned ID to make CoCube move, stop, or do another action.
Start with a wake word, such as Hey CoCube or Hey robot. When the module wakes up, its wake indicator lights up.
Say a command word. The ASR module replies, and your MicroBlocks program receives the command ID.

Tips

After power-up, wait a moment before speaking.

If the sound is too loud, say Decrease volume or Minimum volume.

Command-ID table

Show or hide the full command list

ID	Say this	Type	ASR reply
1	Learned wake word	Wake word	I'm here
2	Hey CoCube	Wake word	I'm here
3	Hey robot	Wake word	I'm here
4	Custom 1	Command word	OK
5	Custom 2	Command word	OK
6	Custom 3	Command word	OK
7	Custom 4	Command word	OK
8	Custom 5	Command word	OK
9	Custom 6	Command word	OK
10	Custom 7	Command word	OK
11	Custom 8	Command word	OK
12	Custom 9	Command word	OK
13	Custom 10	Command word	OK
14	Custom 11	Command word	OK
15	Custom 12	Command word	OK
16	Custom 13	Command word	OK
17	Custom 14	Command word	OK
18	Custom 15	Command word	OK
19	Move forward	Command word	Moving forward
20	Move backward	Command word	Moving backward
21	Stop	Command word	Stopped
22	Turn left ninety degrees	Command word	Turning left ninety
23	Turn left forty-five degrees	Command word	Turning left forty-five
24	Turn left thirty degrees	Command word	Turning left thirty
25	Turn right ninety degrees	Command word	Turning right ninety
26	Turn right forty-five degrees	Command word	Turning right forty-five
27	Turn right thirty degrees	Command word	Turning right thirty
28	Speed up one level	Command word	Speed increased
29	Slow down one level	Command word	Speed decreased
30	Turn on headlights	Command word	Headlights on
31	Turn off headlights	Command word	Headlights off
32	Line-following mode	Command word	Line-following mode on
33	Light-tracking mode	Command word	Light-tracking mode on
34	Bluetooth control mode	Command word	Bluetooth control on
35	Obstacle avoidance mode	Command word	Obstacle avoidance on
36	Face recognition	Command word	Face recognition on
37	Object tracking	Command word	Object tracking on
38	Object detection	Command word	Object detection on
39	Line tracking	Command word	Line tracking on
40	Color recognition	Command word	Color recognition on
41	Tag recognition	Command word	Tag recognition on
42	Object classification	Command word	Object classification on
43	QR code recognition	Command word	QR code recognition on
44	Clear screen	Command word	Screen cleared
45	Start learning	Command word	Learning started
46	Forget	Command word	Forgotten
47	Load model	Command word	Loading model
48	Save model	Command word	Model saved
49	Take a photo	Command word	Photo saved
50	Save and return	Command word	Saved
51	Show number zero	Command word	OK
52	Show number one	Command word	OK
53	Show number two	Command word	OK
54	Show number three	Command word	OK
55	Show number four	Command word	OK
56	Show number five	Command word	OK
57	Show number six	Command word	OK
58	Show number seven	Command word	OK
59	Show number eight	Command word	OK
60	Show number nine	Command word	OK
61	Show smiley face	Command word	OK
62	Show sad face	Command word	OK
63	Show heart	Command word	OK
64	Read current position	Command word	Reading
65	Read ambient light	Command word	Reading
66	Read compass	Command word	Reading
67	Read temperature	Command word	Reading
68	Read acceleration	Command word	Reading
69	Read sound level	Command word	Reading
70	Read button A	Command word	Reading
71	Read button B	Command word	Reading
72	Turn on camera	Command word	Camera on
73	Turn off camera	Command word	Camera off
74	Turn on fan	Command word	Fan on
75	Turn off fan	Command word	Fan off
76	Fan speed one	Command word	Level one on
77	Fan speed two	Command word	Level two on
78	Fan speed three	Command word	Level three on
79	Start oscillation	Command word	Oscillating
80	Stop oscillation	Command word	Stopped oscillation
81	Return to home	Command word	Returning
82	Open gripper	Command word	Gripper opened
83	Close gripper	Command word	Gripper closed
84	Turn on buzzer	Command word	Buzzer on
85	Turn off buzzer	Command word	Buzzer off
86	Turn on speaker	Command word	Speaker on
87	Turn off speaker	Command word	Speaker off
88	Play music	Command word	Playing music
89	Stop music	Command word	Music stopped
90	Previous song	Command word	Previous track
91	Next song	Command word	Next track
92	Repeat one	Command word	Repeat one
93	Repeat all	Command word	Repeat all
94	Shuffle play	Command word	Shuffle mode
95	Increase volume	Command word	Volume up
96	Decrease volume	Command word	Volume down
97	Maximum volume	Command word	Max volume
98	Minimum volume	Command word	Min volume
99	Medium volume	Command word	Medium volume
100	Turn on voice broadcast	Command word	Broadcast on
101	Turn off voice broadcast	Command word	Broadcast off
102	Turn on lights	Command word	Lights on
103	Turn off lights	Command word	Lights off
104	Increase brightness	Command word	Brighter
105	Decrease brightness	Command word	Dimmer
106	Maximum brightness	Command word	Max brightness
107	Minimum brightness	Command word	Min brightness
108	Increase color temperature	Command word	Warmer
109	Decrease color temperature	Command word	Cooler
110	Daylight mode	Command word	Daylight mode
111	Moonlight mode	Command word	Moonlight mode
112	Set color to red	Command word	Red set
113	Set color to orange	Command word	Orange set
114	Set color to yellow	Command word	Yellow set
115	Set color to green	Command word	Green set
116	Set color to cyan	Command word	Cyan set
117	Set color to blue	Command word	Blue set
118	Set color to purple	Command word	Purple set
119	Set color to white	Command word	White set
120	Turn on air conditioner	Command word	AC on
121	Turn off air conditioner	Command word	AC off
122	Increase temperature	Command word	Temperature up
123	Decrease temperature	Command word	Temperature down
124	Cooling mode	Command word	Cooling mode
125	Heating mode	Command word	Heating mode
126	Auto mode	Command word	Auto mode
127	Dehumidify mode	Command word	Dehumidify mode
128	Fan mode	Command word	Fan mode
129	Turn on vertical swing	Command word	Vertical swing on
130	Turn off vertical swing	Command word	Vertical swing off
131	Turn on horizontal swing	Command word	Horizontal swing on
132	Turn off horizontal swing	Command word	Horizontal swing off
133	Open window	Command word	Window opened
134	Close window	Command word	Window closed
135	Open curtains	Command word	Curtains opened
136	Close curtains	Command word	Curtains closed
137	Open door	Command word	Door opened
138	Close door	Command word	Door closed

5. Advanced Features

5.1 Design Your Own Commands

Learn a wake word

A wake word is the phrase that changes the robot from standby mode to listening mode.

Steps:

Wake the module with Hey CoCube or Hey robot.
Say Study wake.
Follow the voice prompts and say the new wake word you want, such as Hello CoCube.
When learning is complete, you can use the new wake word.

Before learning a new wake word, delete the old learned wake word if needed. Keep the room quiet and speak clearly.

Learn command words

A command word tells the robot what action to perform.

Steps:

Wake the module with a wake word.
Say Study command.
Follow the prompt and say your first command, such as Turn on red light.
Continue with the second and third commands, or say Quit study to finish.
Learned command IDs start from 4. Use the returned ID in your program.

Delete learned words

If you want to remove words you taught the module:

Wake the module with a wake word.
Say I want to delete.
Follow the prompt and choose one option:
Delete command: delete learned command words.
Delete wake: delete the learned wake word.
Delete all: clear all learned words.

Learning and delete commands

ID	Say this	What it does	ASR reply
151	Study wake	Start learning a new wake word	please follow the prompts to study wake up words in a quiet environment
152	Study command	Start learning command words	please follow the prompts to study command words in a quiet environment
153	Study again	Record the command again	please follow the prompts to study command words in a quiet environment
154	Quit study	Exit learning mode	exit learning mode
155	I want to delete	Start deleting learned words	is it the learned wake up word or command word that needs to be deleted
156	Delete wake	Delete the learned wake word	deletion succeeded
157	Delete command	Delete learned command words	deletion succeeded
158	Delete all	Delete all learned words	deletion succeeded

5.2 Voice Navigation Example

Use these IDs as a starting point:

ID 19: Move forward
ID 20: Move backward
ID 21: Stop

Then add turns, speed changes, or custom commands to make a voice-controlled robot car.

Reference blocks: