designgameinc / HalloweenGhost

Project Information

Description
Halloween Ghost PCB!
License
Watchers
1
Schematic Status
complete
Layout Status
complete
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Schematic and PCB Layout

Readme

This creepy PCB has red LED eyes and eerie sound comes out of its slotted mouth (loudspeaker is on the bottom side). The sound is generated by an ATMega32 MCU. Any wave file can be converted to 8 kHz samples and inserted into the code (thanks to Rejith, see http://avrpcm.blogspot.com/2010/11/playing-8-bit-pcm-using-any-avr.html?m=1 for more details about MCU firmware). The power is provided via a microUSB connector (no data lines, just power) and will therefore start to spook as soon as connected to any USB port (might also possess the device at the other end of the cable, use at your own risks). The ATMega32 can be programmed using the ICP connector. All the parts are on the bottom side and only the LEDs on the top side. Note the ghost's pupils are the LEDs cathode mark. Happy Halloween!

Bill of Materials

Reference
Description
Manufacturer
Part Number
Package
Verified
Actual Part
Qty
Unit Cost
Order Qty
Total Cost
C2 SURFACE-MOUNT CERAMIC MULTILAYER CAPACITOR General Purpose YAGEO CC0805KRX7R9BB104 0805 (2012 metric) No Digi-key Number 1 ?? 0 0
J2 2.54MM DUAL SMT PIN HEADER Wurth AVR ICP HDR6 No Digi-key Number 1 ?? 0 0
D1, D2 CHIPLED 0805 OSRAM Q62702P5178 0805 (2012 metric) No Digi-key Number 2 ?? 0 0
J1 USB - micro B USB 2.0 Receptacle Connector 5 Position Surface Mount, Right Angle TE 1981568-1 SMT_USB_REC_TYPE_B No Digi-key Number 1 ?? 0 0
U1 Embedded microcontroller TQFP 44 (10x10) Technology 8-Bit 16 MHz I/O number 32 Microchip ATMEGA32-16AU TQFP44 No Digi-key Number 1 ?? 0 0
R1, R2, R3, R4 Lead (Pb)-Bearing Thick Film, Rectangular Chip Resistor Vishay CRCW0805470RJNTA 0805 (2012 metric) No Digi-key Number 4 ?? 0 0
Y5 xtal 8.000mhz SMD LOW PROFILE CRYSTAL Abracon ABLS-8.000MHZ-B4-T SMD_XTAL_HC49/US 535-9067-2-ND 1 0.28 1 0.28
LS1 Slim-Line Micro Speakers PUI AS01808AO-3-R SPK_SMT_18MM0_13MM0 No Digi-key Number 1 ?? 0 0

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