UrbiForge Main/Home Page - Vimperator. Bananaphone: A Touch Capacitance Synth - Vimperator. Turn your Quickstart and Eight Bananas into a Synth!
I was recently inspired by a Kickstart project which used Bananas as sensors to control a video game on a PC. I've done some video game controls using the Propeller in the past, but I thought this would make an interesting synthesizer project. Introducing: Bananaphone: A Touch Capacitance Synth Parts List: Your favorite Propeller board. Make a connection from each of the Propeller's P0-P7 I/O pins to the stem of each banana using the aligator clip jumper wires. I used a Gadget Gangster QuickTerminal to make my connections to the Propeller Quickstart, but you could just as easily plug jumper wires into the Quickstart's P0-P7 I/O. You'll also need to hook a 220ohm resistor to P11. Theory of operation: The Propeller measures the R/C time constant determined by the resistor (internal on the Quickstart) and the capacitance on the connection point. The circuit is called: R/C Decay.
Here's what the discharge looks like Buttons.start(_CLKFREQ / 7000) S Analytical Blog - Vimperator. Having heard that Atmel actually produced three variants of the AT90SC3232 device, we did some digging and found some of this previously never-seen-by-Flylogic AT90SC3232CS. We had already several AT90SC3232 and AT90SC3232C.
We assumed that the CS was just a 3232C with an extra IO pad. Well, one should never ass-u-me anything! The AT90SC3232CS is a completely new design based on the larger AT90SC6464C device. Above: A decapsulated sample of the TQFP44 packaged AT90SC3232CS devices we received. Decapsulation revealed that Atmel actually did place an active shielding over the surface of the device. Above: Active shield metal was removed with wet-etching leaving the oxide residue. A quick polishing session removes that residue you saw in the previous photo. Above: Â With the mesh removed Metal 3 is now exposed.
Given the AT90SC family all run encrypted code that even Atmel claims they don’t know the key on. Above: Â Polished to Metal 2 in our area of interest.
$25 USB Stick PC - Vimperator. Modern Device - Vimperator. Ourduino – Arduino, Electronics and Programming - Vimperator. Liquidware : Open Source Electronics - Vimperator. Embedded Artists AB, Embedded Systems Development - made Easy - Vimperator. Embedded projects from around the web - Vimperator. There are already several STM32 discovery boards that are great tools for learning and prototyping. They have programming/debugging part already included also all pins to access and couple additional things like buttons and LEDs.
If you need more you need to use breadboard and wire jumpers or simply make daughter boards with your desired peripherals. But if you really keen dive in to learning ARM Cortex microcontrollers and still want to use discovery line then take a look at Scot’s approach. He decided to design baseboards for STM32 discovery boards. He already built three boards for VL, F3 and F4 STM32 discovery boards.
Rickard's electronic projects page - How to generate composite video signals in software using PIC. - Vimperator. How to generate video signals in software using PIC BackgroundDuring the Christmas holidays 1997-1998, I started on a small project, trying to generate a video signal with a PIC16C84.
I had seen some video clock generating video signals in software, and thought it was a quite interesting idea, and wanted to take it a step further. I didn't know much about video signals back then, I basically just had seen how a single scan-line works. But during the spring I learned more and succeeded in making the game Pong with a PIC16C84. I thought this was quite cool, so I made it available on the Internet, and during the summer I also made the game Tetris. Note: I've written a much better document also describing how to generate color, it is based on my SX28 game system, SX28 is a "PIC-compatible microcontroller on steroids" (or actually they've just made a true RISC processor with CPI=1 and clocked it very fast) Video signals How a standard TV-set works.
The vertical synchronization pulses. My games.
ARM.