Project Title

Smart led strip that can be controlled by your phone and will create magical atmosphere at your house

Features

• Simple color mode
• Continuous color change
• Microphone amplifier mode
• Displaying information
• Connection to bluetooth

Usage

Just plug in your power supply and connect through bluetooth using any bluetooth terminal software

You can change your led and display mode by following messages:

PulseMode

 m0;{param1};{param2}

Changes the color of the led to {param1} (see the table of int to color below); the color decreases in brightness until it disappears completely in {param2} seconds

ContinuousTransformationMode

 m1;{param1}

Iterating through colors with decreases in brightness until it disappears completely in {param1} seconds

ContinuousColorChangeMode

 m2;{param1}

Iterating through colors list changing it every {param1}

RandomColorMode

m3;{param1}

Randomly change color every {param1} seconds

MicrophoneMode

m4;{param1};{param2}

Color set to {param1}. Color brightness depends on the volume around the device. Color brightness changes every {param2} seconds

Simple color

 {param1};{param2};{param3}

Color set to these 3 parametrs using RGB format

OR

c{param1}

Set color to param1 according to table below

Color list

Number	Color
0	RED
1	GREEN
2	BLUE
3	YELLOW
4	MAGENTA
5	CYAN
6	WHITE
7	ORANGE
8	PURPLE
9	PINK
10	BROWN

Display configuration

Enable display

d1

Enables display that show the RGB format of current color

🤖 Used hardware

Necessery hardware

Component name	Аmount
NucleoF401RET6	1
LCD 5110	1
MAX4466	1
HC-05	1
Resistors 10kOm and 220Om	many
Logical MOSFET like IRLZ44N	3
12 Volt LED strip	1
Power supply with 12volt and 5volt	1
Jumpers	∞

Additional/ debug hardware

• Multimeter

• Oscilloscope (buy me one pls)

• Usb ttl converter

🖥️ Used software

• You can use whatever ide you like for writing code, i prefer JetBrains product aka CLion because it has great code editor with amazing features and gorgeous design.
• For uploading and debugging STM32 i like STM32CubeIDE that provides amazing capabilities for Embedded developers.
• Also STM32CubeMX saves a lot of time at configuration
• Any Serial port monitor for configuration your hc-05

🛠 Skills and technology

Communaction Interfaces:

• SPI
• UART
• GPIO Data Handling:
• Polling
• Interrupts Other:
• C programming language
• PWM
• ADC
• Timers
• Software and hardware debugging
• Circuity

Roadmap

• Add temperature and humidity sensors and display data from them on the display(❌)

• Add GFSK modulation based module as alternative way of wireless communicatio(❌)

• Create User Interface for mobile (❌)

🔗 Links