DIY LED heart

In this article I will try to tell you about the gift I made for my girlfriend!

I got here is a LED heart.

I apologize for my bad English!

Step 1:

DIY LED heart

The basis of the scheme is a microcontroller Atmega8, 1K resistor, selected in such a way as not to overload the microcontroller ports. SMD resistors and diodes, size 1206.

Step 2:

DIY LED heart
DIY LED heart
DIY LED heart

On the reverse side of the board, there are two batteries CR2032, two capacitors, voltage regulator LM7805, and the power button with latching.

Step 3:

DIY LED heart
DIY LED heart
DIY LED heart
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In order to fill in the microcontroller firmware, you need to solder the wires to the pads on the board. Around the microcontroller pins are derived for spi interface (MOSI MISO SCK RESET). The firmware can be downloaded here.

Step 4:

DIY LED heart

To formalize the a scheme which I soldered, I placed it in a wooden frame, and make the background and glued two small ladybugs. Valentine's Day is approaching, a gift sure to enjoy your loved ones people!

Download files PCB and firmware for the microcontroller can be here!

 
 

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