Project 6: Smart Curtain (60 points)

Task Description

Design a smart curtain system using a motor, driver module, and multiple sensors (buttons, remote control, voice, etc.). Includes three sub-tasks:

1. Button Control: Press buttons to control forward/reverse rotation for 1 second
2. Remote Control: Long-press remote buttons for forward/reverse (stop when released)
3. Voice Control: Voice commands control forward/reverse rotation for 1 second

Encourage implementing multiple tasks with a single program.

Core Concepts: Motor forward/reverse control, and diverse human-computer interaction through different sensors (digital input, analog remote signals, voice recognition) for the same controlled object (motor).

Required Hardware

• Steamania JoyKit V2 (Main Controller)
• DC Motor Module
• Motor Driver Module (L298N or similar)
• Push Button Module (2 buttons: forward/reverse)
• IR Remote Control Module
• Voice Recognition Module (optional)

Core Tasks

Task 1: Button Control (20 points)

• Press forward button → motor rotates forward for 1 second
• Press reverse button → motor rotates reverse for 1 second

Task 2: Remote Control (20 points)

• Long-press remote forward button → motor rotates forward (stop when released)
• Long-press remote reverse button → motor rotates reverse (stop when released)

Task 3: Voice Control (20 points)

• Say "Open Curtain" → motor rotates forward for 1 second
• Say "Close Curtain" → motor rotates reverse for 1 second

Reference Solution

Program Code

; Smart Curtain Program
; Implements button, remote, and voice control for motor

; Initialization - Lines 000-005
000 C1 0001 0000  ; Enable button input
001 C2 0001 0000  ; Enable IR remote control
002 C4 0001 0000  ; Enable voice recognition (optional)
003 C9 0001 0000  ; Enable motor control
004 0E 0000 0010  ; Jump to main loop at line 010

; Main Loop - Check All Inputs - Lines 010-03F
010 04 0001 0020  ; If button pressed (R01 > 0), jump to button control
011 04 0002 0030  ; If remote pressed (R02 > 0), jump to remote control
012 04 0003 0040  ; If voice detected (R03 > 0), jump to voice control
013 D9 0000 0000  ; Stop motor (no input)
014 0E 0000 0010  ; Jump back to line 010 (continue monitoring)

; Button Control - Lines 020-02F
020 04 0064 0024  ; If R01 > 100 (forward button), jump to forward
021 04 00C8 0028  ; If R01 > 200 (reverse button), jump to reverse
022 0E 0000 0010  ; No valid button, return to main loop

024 D9 0001 0000  ; Motor forward
025 02 03E8 0000  ; Delay 1000ms (1 second)
026 D9 0000 0000  ; Stop motor
027 0E 0000 0010  ; Return to main loop

028 D9 0002 0000  ; Motor reverse
029 02 03E8 0000  ; Delay 1000ms (1 second)
02A D9 0000 0000  ; Stop motor
02B 0E 0000 0010  ; Return to main loop

; Remote Control - Lines 030-03F
030 04 000A 0034  ; If R02 == 10 (remote button A), forward
031 04 0014 0038  ; If R02 == 20 (remote button B), reverse
032 0E 0000 0010  ; No valid remote, return to main loop

034 D9 0001 0000  ; Motor forward (while button held)
035 04 000A 0034  ; Check if button still pressed
036 02 0064 0000  ; Delay 100ms
037 0E 0000 0034  ; Continue holding

038 D9 0002 0000  ; Motor reverse (while button held)
039 04 0014 0038  ; Check if button still pressed
03A 02 0064 0000  ; Delay 100ms
03B 0E 0000 0038  ; Continue holding

; Voice Control - Lines 040-04F
040 04 0001 0044  ; If R03 == 1 (voice "Open"), forward
041 04 0002 0048  ; If R03 == 2 (voice "Close"), reverse
042 0E 0000 0010  ; No voice command, return to main loop

044 D9 0001 0000  ; Motor forward
045 02 03E8 0000  ; Delay 1000ms (1 second)
046 D9 0000 0000  ; Stop motor
047 0E 0000 0010  ; Return to main loop

048 D9 0002 0000  ; Motor reverse
049 02 03E8 0000  ; Delay 1000ms (1 second)
04A D9 0000 0000  ; Stop motor
04B 0E 0000 0010  ; Return to main loop

Detailed Explanation

Initialization (Lines 000-005)

Line 000: C1 0001 0000

• Enable button input module
• Required for physical button control

Line 001: C2 0001 0000

• Enable IR remote control module
• Required for remote control operation

Line 002: C4 0001 0000

• Enable voice recognition module
• Optional for voice command control

Line 003: C9 0001 0000

• Enable motor control module
• Required for motor operation

Line 004: 0E 0000 0010

• Jump to main loop at line 010

Main Loop - Input Monitoring (Lines 010-014)

Line 010: 04 0001 0020

• Conditional Jump: If button pressed (R01 > 0), go to button control

Line 011: 04 0002 0030

• Conditional Jump: If remote pressed (R02 > 0), go to remote control

Line 012: 04 0003 0040

• Conditional Jump: If voice detected (R03 > 0), go to voice control

Line 013: D9 0000 0000

• Stop motor (no active input)

Line 014: 0E 0000 0010

• Continue monitoring loop

Task 1: Button Control (Lines 020-02B)

Line 020: 04 0064 0024

• Conditional Jump: If R01 > 100 (forward button threshold)
• Button value > 100 indicates forward button pressed

Line 021: 04 00C8 0028

• Conditional Jump: If R01 > 200 (reverse button threshold)
• Button value > 200 indicates reverse button pressed

Line 024: D9 0001 0000

• Motor forward rotation
• Instruction 0xD9 controls motor direction

Line 025: 02 03E8 0000

• Delay 1000ms (1 second)
• Fixed duration for button control

Line 026: D9 0000 0000

• Stop motor

Task 2: Remote Control (Lines 030-03B)

Line 030: 04 000A 0034

• Conditional Jump: If R02 == 10 (remote button A code)
• Remote sends specific codes for each button

Line 031: 04 0014 0038

• Conditional Jump: If R02 == 20 (remote button B code)

Line 034: D9 0001 0000

• Motor forward while button held

Line 035: 04 000A 0034

• Check if button still pressed

Line 036: 02 0064 0000

• Delay 100ms

Line 037: 0E 0000 0034

• Continue holding if button pressed

Key Difference: Remote control uses "press and hold" logic - motor runs only while button is pressed.

Task 3: Voice Control (Lines 040-04B)

Line 040: 04 0001 0044

• Conditional Jump: If R03 == 1 (voice command "Open")
• Voice module maps commands to register values

Line 041: 04 0002 0048

• Conditional Jump: If R03 == 2 (voice command "Close")

Line 044: D9 0001 0000

• Motor forward for 1 second

Line 045: 02 03E8 0000

• Delay 1000ms

Line 046: D9 0000 0000

• Stop motor

Key Concepts

1. Motor Control

Use instruction 0xD9 for motor control:

• D9 0001 0000 = Forward rotation
• D9 0002 0000 = Reverse rotation
• D9 0000 0000 = Stop

2. Input Priority

The program checks inputs in order:

1. Button control (highest priority)
2. Remote control
3. Voice control (lowest priority)

3. Control Modes

• Button Mode: Fixed 1-second duration
• Remote Mode: Continuous while held (momentary)
• Voice Mode: Fixed 1-second duration

4. Sensor Integration

Multiple sensors can control the same actuator:

• Buttons: Digital input (R01)
• Remote: Analog/digital input (R02)
• Voice: Digital input (R03)

Assessment Rubric

Criteria	Excellent (5)	Good (4)	Satisfactory (3)	Needs Improvement (2)
Button Control	Reliable button operation	Minor issues	Works with delays	Buttons not working
Remote Control	Smooth press-and-hold	Minor lag	Works inconsistently	Remote not functioning
Voice Control	Accurate voice recognition	Occasional errors	Limited recognition	Voice not working
Motor Control	Smooth forward/reverse	Minor issues	Rough operation	Motor not working properly
Integration	All 3 modes work seamlessly	Minor integration issues	Modes work separately	Integration fails
Code Quality	Clean, modular code	Good structure	Code works but messy	Code doesn't work

Extension Challenges

1. Position Sensing: Add limit switches to detect fully open/closed positions
2. Auto-Close: Automatically close curtain at sunset using light sensor
3. Obstacle Detection: Stop motor if obstacle detected (current sensing)
4. Scheduling: Program curtain to open/close at specific times
5. App Control: Add Bluetooth/WiFi for smartphone control

Related Documentation

• Instruction Set Summary - Full instruction set overview