We are here again with a project you will like. If you like listening to music and enjoy the visuality, this project is for you. DIGITAL CLOCK MUSIC SPECTRUM ELECTRONIC KIT WITH TEMPERATURE DISPLAY.
This is an electronic kit. When you complete the project you will not only have a music spectrum, but also a digital clock and thermometer.
A suitable sound source near it can switch to spectrum, can be switched to the clock (12/24 hours) and temperature (degrees Celsius and Fahrenheit) display, the spectrum sensitivity have 3 levels adjustable, 3 kinds of display mode optional.
Spectrum type: no need to connect to the audio cable, just close to the sound source.
Color classification: colorful, red, green, blue, white optional.
Step 1: The Working Principle
The display screen is made up of 160 LEDs components of the 10*16 dot matrix.Driven by the MCU and LED driver chip.
When the display signal spectrum, voice chip on the microphone module output sampling, get the amplitude of each frequency point by FFT, and display to the dot matrix screen. Because the sound is constantly changing, so the calculated amplitude are constantly changing, so you can see a change with the sound pattern.
When the clock is displayed, the MCU reads the time in the clock chip and displays it in the dot matrix screen.
When the display temperature, MCU read voltage of thermistor is converted into temperature, and display to the dot matrix screen.
Step 2: Requirements
As you can see in pics, we have many components. And also you can find details on video timestamp : 0:43
3mm x 160 (r-g-b-w)
MPA1727 -Mic Module
Crystal - 32768
2032 Battery and seat
DS1312 Clock IC
IAP15W413AS - MCU
1117 POWER IC
We will go step by step;
Step 4: LED Assembling
We are assembling LEDs to PCB. You can follow this order for assembling.
Red - Red - Blue - Blue - Green - Green- White - White - Red - Red - Blue - Blue - Green - Green - White- White
Step 5: Resistors Assembling
Next step will resistors... We are using 470 ohm and 47K resistors.
Step 6: Other Components Assembling
You will see on pics others. We are assembling Chips, capacitors, keys and others. And also you can watch on video with timestemp : 4:33
Step 7: Boxing
Now we have a electronic card. And next will be boxing for it.
Step 8: TESTING AND SHOWTIME
We tested our project. And as you see , working good. If you click video, will start " SHOWTIME"
If you want to make this project, you can buy from below links with THE BLACK FRIDAY DISCOUNT.
DIY FFT1625 DIGITAL CLOCK MUSIC SPECTRUM ELECTRONIC KIT: https://goo.gl/8oHrLL
Thanks for watching us.