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!

Teacher Notes

Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.

Step 1:

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:

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:

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:

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!

Be the First to Share


    • Made with Math Contest

      Made with Math Contest
    • Multi-Discipline Contest

      Multi-Discipline Contest
    • Robotics Contest

      Robotics Contest

    9 Discussions


    4 years ago on Introduction

    How do you use the USBASP programmer in windows to flash the hex files?, i have been looking for a way to do this but up to now i have only found it can be used in linux, but i dont use liniux

    1 reply

    Reply 4 years ago on Introduction

    Find the USBASP drivers for windows. Look up this software called Zadig, and AVR Burn-o-Mat. Zadig will help install drivers, and burnomat will help flash the hex files.


    4 years ago on Introduction

    I used a homemade programmer - avr910. But I advise you to use very simple programming "usbasp v2.0". This programmer works fine with the program "AVRDUDE PROG". Also to download files .hex, you can use Arduino.


    4 years ago

    I also think it looks great without enclosure. Very techno-chic. Of course it looks really nice with the enclosure as well. Nice job.

    ir jammer device

    4 years ago

    Can you this build for me writing me of this email please thanks

    ir jammer device

    4 years ago

    Hello have one question i search one ir jammer device for accceptor who send information to the acceptor write me of this email

    Ginko Balboa

    4 years ago on Introduction

    The PCB is really beautifully designed, I would use it as it is, without enclosure.


    4 years ago

    i think the pcb layout, especially front, is beautiful!