Use a PIC, PICaxe, BASIC stamp. or Arduino PICs (Programmable Integrated Circuit) are simply a programmable chip.
Pros |Cons ----------------------+ -------------------------------- Cheap per chip | Have to buy/make a programmer board, which cost a bit. Very flexable | Can be hard to program and you have to buy software to do it. PICaxes are a PIC with special firmware pre-programmed into them so that minimal componants are required to program them. Generally you buy them as a kit, which comes with programming software, componants, a circuit board and a uplink cable. Pros | Cons ---------------------------------------------------------------+----------------------------- Easy to program | Expensive Minimal componants needed to program | Less memory for programs Kits come with all componants needed | BASIC stamps are like PICaxes, but you can'y get the single chips. Arduinos are like BASIC stamps, but are more powerful and harder to program. -Greg On Thu, Jul 9, 2009 at 10:00 PM, Chris. b <[email protected]> wrote: > > I am also after this sort of thing > > What I want is a setup that limits firing time (valve open) that is > adjustable to suit. > then limits rate of fire (im thinking 1-10 seconds per shot) > > so yes count me in for 4 if they can do this. > > Chris. b > > On Jul 9, 5:48 am, "Adams, Kevin" <[email protected]> wrote: > > Some small pilot valves can switch fast enough for paintball use. The > problem is their flow rates are generally to low to fire a paintball at a > respectable speed. Often the small valve works a larger valve that also > serves as the markers bolt and closes the breach before the paint is fired. > http://www.zdspb.com/tech/index.htmlcan walk you down just about every > reasonable path to putting paint down range. New valve designs and methods > come out all the time but generally they are rehashes of old designs with > the parts flipped around a bit. > > > > -----Original Message----- > > From: [email protected] [mailto: > [email protected]] On Behalf Of Modena > > Sent: Wednesday, July 08, 2009 9:43 AM > > To: R/C Tank Combat > > Subject: [TANKS] Re: Timing circuit for canon firing - help? > > > > > A couple questions: > > > > > 1) When do you need it done? > > > > > 2) What range for X and Y would you like to have? > > > > > Frank P. > > > > 1) anytime - I'm not ready for it yet, but will be in a few weeks > > > > 2) I am almost totally guessing here, but I think for X (dwell time) > > it would need to be in the order 0.005 - 0.050 of a second (5 - 50 > > milliseconds). I have not been able to find a lot of info on > > manufacturers dwell time, but from what I have found that sounds about > > right. For Y (reload time) I would think adjustable between 0.5 - 5 > > seconds. > > > > For X I have no idea if my valve can switch on and off that fast, > > trial and error will have to sort that out, along with pressure > > adjustments. > > > --~--~---------~--~----~------------~-------~--~----~ You are currently subscribed to the "R/C Tank Combat" group. To post a message, send email to [email protected] To unsubscribe, send email to [email protected] Visit the group at http://groups.google.com/group/rctankcombat -~----------~----~----~----~------~----~------~--~---
