USB POV Toy design

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Project-cover-w490.jpg

Intro and goal

features

  • Features (list)
  • Features

You can get a [project for $20], including worldwide shipping.

Read about the design below.


Contents

Overview

History and related links

Hardware

POVToy-v1c-cct.png

Click for a full size schematic image. Schematic and PCB were designed with the freeware version of Cadsoft Eagle, download the latest project files from our Google Code project page.

Microcontroller section

Project-section-diagram-490.jpg

  • Microcontroller
  • Power and decoupling
  • Oscillator
  • Programming and reset support
  • LEDs

Another part of it

Project-section-diagram-490.jpg

Latest PCB

POV-toy-pcb.jpg

Early PCB

USB-POV-toy-pcb.jpg

We used the freeware version of Cadsoft Eagle to make the schematic and PCB. Download the latest designs and firmware from the project Google Code page.

  • PCB and placement notes
  • soldering advise

Partslist

POVToy-v1c-brd.png

Click for a full size placement image.

Partlist

USB POV Toy
PartQuantityValuePackage
C1-3,C11410uFSMC_A
C4,C5227pFC603
C610.47uFC603
C7-1040.1uFC603
CHRG,LED8-159LEDLED-805
ICSP10.1” Pin header1X05
JP110.1” Pin header2X05
LED0-78LEDLED-3MM
LI-PO1BATTERY1X02
R1,R3,R4310kR603
R2,R521kR603
R612.7kR603
RN1,RN221KRN8P-4R-CRA06S
SW1SMD Slide switchSLIDE_SWITCH_SMD
SW11SMD button, smallTACT_SWITCH_SMALL
T11BC81840MTFSOT23-BEC
U11PIC18F24J50SSOPSSOP28
U2125AA080A-SNSO-08
U31MMA7455LLGA-14
U41MCP73832T-2ACISOT-23-5
U51MIC5205-3.3BM5SOT-23-5
USB1USB mini-bCONN_USB_MINI-B
XTAL1120MHzHC-49U

Firmware

The firmware is written in C and compiled with the free Microchip C18 compiler. You can download the latest files from our Google Code project page.

  • Operating modes
  • extra software required

We used the Microchip USB stack to run the 18F2550 as a virtual serial port. Microchip's code is open but not redistributable. If you want to compile the source, download the stack from Microchip, then drag the source code into the install directory. See the detailed instructions in the PIC compiler how-to.

.inf installation

The virtual serial port (CDC) is an open standard, it should work on any modern operating system.

You don't need a driver, but you will need a .inf file to tell Windows how to use the device. A suitable .inf is included in the project archive.

Commands

Bootloader

490px

Source and license


Taking it further

Here's some ideas for the future:

  • List

We'll post the most recent firmware updates on our blog. You can also join the discussion in the [forum].

Get one!

You can [get one for $00], including worldwide shipping.

Your purchases at Seeed Studio keep the open source project coming, we sincerely appreciate your support!

Links

License