Pulsing Puberty Heart
Description
I Designed This Pulsing Heart For My Daughter Hitting Currently Puberty. It Pulses Slowly With Nearly 60 Hz. If A Person Is Approaching, The Pulse Quickens. At A Distance Below 30 Cm Its Really Running Wild. See The Video:Https://Youtu.Be/7Wt9Lred2Ja The Distance To A Person (Or Thing) Is Measured By Means Of Ultrasonic, The Whole Circuit Is Based On A Mini-Arduino I Designed Myself. The Schematic And Pcb Design Files Are Included Either. The Ultrasonic Part Is Based On The Popular Module Hc-Sr04 Which I Modified A Little Bit To Fit On My Circuit. I Exchanged The Angulated 4Pin Header To A Straight One. Now The Module Can Easily Plugged In My Board. The 22 Leds Are 5050 Rgb Neopixels From Adafruit. A Ldr Is Integrated To Measure The Environmental Light And Control The Brightness Of The Leds. As Mikrocontroller I Used A Tqfp Atmelmega328. Take Care To Flash An Arduino Bootloader Onto The Chip Before You Solder It. To Program The Chip A 5 Pin Interface (Just 5 Smd Pads) Is Integrated On Which A Ftdi2Usb-Breakout Board Can Be Adapted Via Wirewrap Strips Or Cable. The Arduino Sketch Is In The Files Section. As Power Supply I Used A 3.7 Lipo 400 Mah Cell With Jst Plug. Everything Fits In The Heart Shaped Case. To Wear The Heart You Can Fix With Hotmelt A Clip From An Old Button Sticker On The Backside Or Use The Small Ring With A Chain. See Also My Other Neopixel Project: The Neopixel Goggles.
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