Tag: microcontroller

14
Feb

My electronic Valentine card

This is my present for my love for this Valentine day. I was always want to build a circuit on a paper craft, but I don’t like to mess with the wiring. Until I found a solution: the Circuit Scribe conductive pen, which allows you to make an electronic circuit on a paper ! But to build a practical circuit (not just to turn on a LED), this mighty guy will do the heavy work: the Silhouette Portrait. It’s basically a 2D plotter and cutter, just mount the pen in there, load the circuit traces and click the “Cut” button.  The circuit is designed using Altium Designer, which all components are surface-mounted and the trace width is set as 0.6 mm.

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30
Apr

A flower music player for my love

This is a birthday gift for my wife, which based on the idea of Chan to make a SD card music player. The circuit simply consists of an Atiny85 microcontroller, SD card slot, low-dropout voltage regulator, 3.7V Lipo battery, battery charger IC and few resistors and caps. The circuit board can be nicely fitted inside a small box, which is served as a base of the flower, and the “flower” is actually the speaker.  

Flower music player

Flower music player

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