Post by thread:RC Speed Control. WAS(Code for v-tail mixer?)

At 09:35 AM 5/15/97 +0200, you wrote: >Andy Kunz writes: >> It takes two inputs ranging from 0 to 208, producing two independent >> outputs ranging from 0 to 208, with neutral at 104. 0 ==> 980uS, 104 ==> >> 1500uS pulse, 208 ==> 2080uS. This implies 5uS resolution, with a 980uS >> threshold. > >On another note, Andy, how accurate are the pulse widths from R/C >controllers. I know that they are nominally 1 to 2 ms long but do some >R/C controllers, for whatever reason, produce pulse widths outside >this range? I guess from the fact that you only have inputs from 0 to >208 that the R/C controllers never produce pulse widths outside this >range. But have you actually checked that this is the case. I am >interested in what you have to say on this because as soon as I have >my 16F84 programmer ready I want to try building an R/C speed >controller. > >BTW, Did anyone else almost faint at the size of yesterday's PICLIST >digest? I was glad when I found that half of those 3580 lines were >taken up with encoded attachments and not reading material. Yeah, you have to give a little lee-way on the pulse widths. They are analog values derived from a pot after all.. I have just "finished" , well I am ready for some final testing for my RC speed control.. I have the source code here, I am not sure if I should post it to the PICLIST. It is about 350 lines.. Can someone tell me if that is too long for the list??? I'd loke some people to look at the code and give me comments, opinions, suggestions, etc... Jason E. Brown Other Worlds 3801 Dayton Blvd Chattanooga TN 37415 (423)870-1074 spam_OUTothrwrldTakeThisOuTcdc.net = business. .....jebrownKILLspam@spam@cdc.net = me.

>I have the source code here, I am not sure if I should post it to the >PICLIST. It is about 350 lines.. >Can someone tell me if that is too long for the list??? >I'd loke some people to look at the code and give me comments, opinions, >suggestions, etc... I'm sure there are people here who would like to look at it, but don't post it to the list, please. WHy don't you just mail it direct to people who want to look. Andy ====================================================================== Andy Kunz - Montana Design - 409 S 6th St - Phillipsburg, NJ 08865 USA Electronics for Industry & R/C Hobbyists "Go fast, turn right, and keep the wet side down!" ======================================================================

I owuld like the code listing!!!! {Quote hidden}> ---------- > From: pic microcontroller discussion > list[SMTP:PICLISTKILLspamMITVMA.MIT.EDU] on behalf of Andy > Kunz[SMTP:.....montanaKILLspam.....FAST.NET] > Sent: Thursday, May 15, 1997 11:14 AM > To: EraseMEPICLISTspam_OUTTakeThisOuTMITVMA.MIT.EDU > Subject: Re: RC Speed Control. WAS(Code for v-tail mixer?) > > >I have the source code here, I am not sure if I should post it to the > >PICLIST. It is about 350 lines.. > >Can someone tell me if that is too long for the list??? > >I'd loke some people to look at the code and give me comments, > opinions, > >suggestions, etc... > > I'm sure there are people here who would like to look at it, but don't > post > it to the list, please. WHy don't you just mail it direct to people > who > want to look. > > Andy > > ====================================================================== > Andy Kunz - Montana Design - 409 S 6th St - Phillipsburg, NJ 08865 USA > Electronics for Industry & R/C Hobbyists > "Go fast, turn right, and keep the wet side down!" > ====================================================================== >

Raak, Cory wrote: > > I would like the code listing!!!! > Me too! {Quote hidden}> > ---------- > > From: pic microcontroller discussion > > list[SMTP:PICLISTspam_OUTMITVMA.MIT.EDU] on behalf of Andy > > Kunz[SMTP:@spam@montanaKILLspamFAST.NET] > > Sent: Thursday, May 15, 1997 11:14 AM > > To: KILLspamPICLISTKILLspamMITVMA.MIT.EDU > > Subject: Re: RC Speed Control. WAS(Code for v-tail mixer?) > > > > >I have the source code here, I am not sure if I should post it to the > > >PICLIST. It is about 350 lines.. > > >Can someone tell me if that is too long for the list??? > > >I'd loke some people to look at the code and give me comments, > > opinions, > > >suggestions, etc... > > > > I'm sure there are people here who would like to look at it, but don't > > post > > it to the list, please. WHy don't you just mail it direct to people > > who > > want to look. > > > > Andy > > > > ====================================================================== > > Andy Kunz - Montana Design - 409 S 6th St - Phillipsburg, NJ 08865 USA > > Electronics for Industry & R/C Hobbyists > > "Go fast, turn right, and keep the wet side down!" > > ====================================================================== > >

At 11:14 AM 5/15/97 -0400, you wrote: >>I have the source code here, I am not sure if I should post it to the >>PICLIST. It is about 350 lines.. >>Can someone tell me if that is too long for the list??? >>I'd loke some people to look at the code and give me comments, opinions, >>suggestions, etc... > >I'm sure there are people here who would like to look at it, but don't post >it to the list, please. WHy don't you just mail it direct to people who >want to look. > >Andy > >====================================================================== >Andy Kunz - Montana Design - 409 S 6th St - Phillipsburg, NJ 08865 USA > Electronics for Industry & R/C Hobbyists > "Go fast, turn right, and keep the wet side down!" >====================================================================== >Please send me a copy. I'm interested in PWM motor speed control for another application. Thanks.

Me three please!!! On Thu, 15 May 1997, Luciano Cadaval Basso wrote: {Quote hidden}> Raak, Cory wrote: > > > > I would like the code listing!!!! > > > > Me too! > > > > ---------- > > > From: pic microcontroller discussion > > > list[SMTP:RemoveMEPICLISTTakeThisOuTMITVMA.MIT.EDU] on behalf of Andy > > > Kunz[SMTP:spamBeGonemontanaspamBeGoneFAST.NET] > > > Sent: Thursday, May 15, 1997 11:14 AM > > > To: TakeThisOuTPICLISTEraseMEspam_OUTMITVMA.MIT.EDU > > > Subject: Re: RC Speed Control. WAS(Code for v-tail mixer?) > > > > > > >I have the source code here, I am not sure if I should post it to the > > > >PICLIST. It is about 350 lines.. > > > >Can someone tell me if that is too long for the list??? > > > >I'd loke some people to look at the code and give me comments, > > > opinions, > > > >suggestions, etc... > > > > > > I'm sure there are people here who would like to look at it, but don't > > > post > > > it to the list, please. WHy don't you just mail it direct to people > > > who > > > want to look. > > > > > > Andy > > > > > > ====================================================================== > > > Andy Kunz - Montana Design - 409 S 6th St - Phillipsburg, NJ 08865 USA > > > Electronics for Industry & R/C Hobbyists > > > "Go fast, turn right, and keep the wet side down!" > > > ====================================================================== > > > >

> I have the source code here, I am not sure if I should post it to the > PICLIST. It is about 350 lines.. > Can someone tell me if that is too long for the list??? > I'd loke some people to look at the code and give me comments, opinions, > suggestions, etc... I hate to post 'me too' type things - but I'd be interested in seeing the code if you aren't going to do a general post here. MikeS <RemoveMEmikesmith_ozTakeThisOuTrelaymail.net>

Hi Jason, I've been playing around using PICs for control of Radio control submarines for a while now and have implemented various pulse width schemes and servo control output. I would love to take a look at your code. I make use of 16c71 (I need the A/D for tilt and pressure inputs). In my version I finally decided to make use of a range of -64..+64 with -64 = 1ms and +64=2ms. I trim out of range inputs to this range. I have to do a fair amount of processing of the input values combining them with pressure inputs etc. and I find that having this type of range lets me to virtually all of the calculations in 8 bit arithmetic. I do lose out on resolution but this is not really a big problem for me (the noise from the sensors I use is at least as big as this loss!). Andy >I have the source code here, I am not sure if I should post it to the >PICLIST. It is about 350 lines..