The Muzak Visualizer was designed by me, nmcclana. It's based on the open source Pixelmusic project with a few modifications to enhance the visuals and do the ADC on the Propeller. NOTE: This project has been updated to reflect Gadget Gangster's new project boards. The project boards in the photos are yellow because they're prototypes, but the final boards have a soldermask.
You can get the kit from Gadget Gangster. It comes with everything and is pre-programmed. But, if you'd like to gather the parts yourself, you'll need the following.
- Resistors, 1 each of : 1.1K, 270, 560. 2 x 10K
- 2x RCA phono jacks (1 for the Video out, 1 for the Audio in)
- Gadget Gangster project board (Boss Board)
- 8 Pin Dip Socket
- A 3.3V LDO Voltage Regulator (Kits come with a LD1117)
- Power Connector
- 40 Pin DIP Socket
- Parallax Propeller
- 5MHz crystal
- .1uF Capacitor
- And a programmed 32KB i2c EEPROM. You can get the Source Code off Gadget Gangster
Here's a little video demonstration
Step 1: Building Power
The main voltage regulator goes at the part of the board labeled [Pc].
The regulator is inserted as shown in the picture. Note how the tab lines up with the square of bare metal. Use a bit of solder to 'tack' down the tab to the board, this will act to dissipate heat. Once the regulator is inserted, flip over the board, solder the legs to the board and trim the excess lead.
Step 2: Power, Contd
Step 3: Power Cont'd
On the diode, you'll notice a stripe on one end. The stripe should be closer to the voltage regulator, as demonstrated on the picture.
Step 4: Add Power
Add another capacitor of 10uF on [Pc]. The white stripe on the cap casing should be closer to the edge of the board
That's it for the Power. Now on to setting up the Propeller
Step 5: Adding the EEPROM, Pt 1
[Px] is the holes D5 - H5.
Step 6: Adding the Resistor
Step 7: Adding the Video DAC
[Pr] 560 (Green - Blue - Brown)
[Ps] 1.1k (Brown - Brown - Red)
[Pt] 270ohms (Red - Violet - Brown)
Step 8: Adding the Propeller
Although the picture doesn't show it, your resistors should already be soldered in, under the frame, at [Pr], [Ps], and [Pt].
Step 9: Final Touches
If you have any questions, check out the project page on Gadget Gangster, where you can also pick up the kit.