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Propeller as eq for pocket amp?
ive recently been side tracked building a headphone amp, basically becuase i needed one and wanted to learn more about analog stuff..
i started thinking i could use the propeller to control some digital pots for gain and volume control, and build a decent little prop sound card using my amp design. then i started wondering what would it take to use the prop as a digital eg for my pocket amp..
i have some pricey 24bit adcs and a 12 bit dac if needed. im not sure if using the props dacs and adcs would be good enough. how posible would it be to use the prop as an eq? ive never written sound code so im not sure what it entails. is this whole idea a huge undertacking or is it as simple as a few passives with an obex object? id really like to make a kill headphone amp but have 0 intrest ib learning to much about coding an eq or any sound processing.
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Each Propeller has a specific mandate (and many concurrent tasks are done by each propellers). Prop. 1- Control motors to move the robot Prop. 2- Power management Prop. 3- Image analysis (1 camera) Prop. 4- Sensors data analysis (distance, ...) Prop. 5- General tasks + robot mission Propeller should be able to communicate directly with any other Propeller at any time. Actually, I need (would like) to create a "fully connected network of Propellers". I think I2C is probably the ...www.geeks.com/details.asp?invtid=TKB150Pampcat=PDA Micro DataPad Mini Keyboard for Palm PDA m100/m105 Series $0.39 If it wasn't for shipping, these are almost free keyboards for a portable prop project... IIRC, the m100 is a serial interface.. I'll let you guys know how I make out with these.. UPS shipping is the same for 1-8 of these.. OBC ???????????????????????? New to the Propeller? Getting started with the Protoboard? - Propeller Cookbook Got an SD card? - PropDOS A Living Propeller FAQ - The Propeller Wiki (Got the Knowledge? Got a Moment? Add something today!)Ok so this board im designing right now is going to be using the MCP23018 which is basically the same as the 23017 except it has an open collector and 5v tolerant pins, yay! Anyways as the design stands right now the board will have 53 I/O pins. This is because I plan on chaining my i2c chips on the same bus as the EEPROM. This got me thinking about some stuff though which im a little hazy about and didn't even realize it till now. First of all the data sheet for the 230xx devices isnt to clear about speed, ...ok here is what I an doing. I assembled a portable PROP unit it has a miniPS2 keyboard built into the top of a simple case and an LCD from a portable DVD player (it accepts NTSC) it has speakers and an NES port, and an SD card. all of this is conifigured to Jeff Ledgers PROTO-board cookbook wich i will upload so you dont have to track it down. with this little setup I have convinced my collage to start a TECH-CLUB based around the PROP and some gear i put together. this SD card has just the right combo of show ...I bought one of these from Radio Shack a week or so back and it says that version F has a speaker for music but there is no example code for the Propeller (nor BS2). I had a few of these in an earlier version when I programmed the SX chip sometime back but wanted to hear the sound capability in this new one for the Propeller. Why is the released datasheet incomplete? Has anyone written any example code for the music tones? I'm a bit surprised no one has brought this up yet - from what I searched on in the forum ...I have been in the last year building up my courage and resources on getting started learning the Propeller. I have sold off a lot of my Stamp stuff, but still have several things. Is it worth keeping Stamps around if I'm moving into the Prop?I just opened the Prop, Prop clip, read the manual through, circuits etc. and read quite a lot, what I could find on these forums. So when the Prop boots up, Cog0 looks for a PC connection first. If it's available, it'll load the program into memory. This mean the EEPROM is optional as long as I have a good PC connection running Propeller Tool right? Is there anything I need to do to terminate those open pins on the Prop then? I'll have more, don't worryOk I love the propeller.. its is awesome for prototyping stuff its capable of doing most anything and makes an all around kick-*** micro when you need some power. I am originally a software guy hoping to maybe get into the kit business. Do to my background and beginner status with electronics, I find it easier to whack another micro into a project to solve a solution sometimes rather than using logic IC's or some descrete solution. Perfect example hooking 8 buttons to one pin, why not throw a 50 cent micro at the problem, or using a cheap micros ...To all you multi rotor guys, I think you are doing great work and I hope to use one in my business soon. I'm starting to see a lot of designs coming on now with shielded props. These would be great for me in my busness of aquatic weed control. Spraying by Rotary UAV in a swamp would be full of hazards for open props, e.g. dead sticks, trees, reeds, vines etc. It seems to me, most of the shielded designs seem to be for looks (UFO's) or for pure prop protection. 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