Post by thread:TV/VCR R/C for the disabled

Hi Andy, A couple of years ago I built a Remote Control unit that was able to learn any given remote control for any device and then reproduce this by commands either from the PC or a stored time/command configuration, this was done with a PIC. I was thinking that I would integrate it with a voice recognition module and do exactly what you are trying to do and thought of the same market share that you are developing for. After some marketing research that I did, I decided not to continue with this project. But, the idea is still nice and I hope that someday someone would do this and disabled people could enjoy it. Chaipi At 12:36 01/03/00 +0000, Andy Bassam wrote: >hi, >as a part of my final year project I am building for disabled people. I >need to control television and telephone using PIC . any >suggestions welcome \\\|/// \\ ~ ~ // ( @ @ ) ----------------------------oOOo-(_)-oOOo-------------------------------------- ! ! ! Chaipi Wijnbergen ! ! Electronics/Computer Eng. M.Sc. Tel : +972-8-9343079 ! ! Optical Imaging Laboratory Fax : +972-8-9344129 ! ! Brain Research Center Email : spam_OUTchaipi.wijnbergenTakeThisOuTweizmann.ac.il ! ! Weizmann Institute of Science URL : http://www.weizmann.ac.il/~chaipi ! ! Rehovot 76100 ISRAEL ! ! ! ------------------------------------Oooo.-------------------------------------- .oooO ( ) ( ) ) / \ ( (_/ \_)

A 20-second hack for until you get it built's to make an extended "slap plate" for the mute button (IMO the most frequently used button on a TV remote!) The ex-GF used that a lot, was very handy for her; I used a piece off a broken CD case, wire tied it onto the base of the remote, the "hub" section can be cut to just hit the mute switch. (Still hardware/software problems here, will get a new machine up soon, just problems getting drivers to work...) Mark Chaipi Wijnbergen wrote: {Quote hidden}> Hi Andy, > > A couple of years ago I built a Remote Control unit that was able to learn > any given remote control for any device and then reproduce this by commands > either from the PC or a stored time/command configuration, this was done > with a PIC. > > I was thinking that I would integrate it with a voice recognition module > and do exactly what you are trying to do and thought of the same market > share that you are developing for. After some marketing research that I > did, I decided not to continue with this project. But, the idea is still > nice and I hope that someday someone would do this and disabled people > could enjoy it. > > Chaipi > > At 12:36 01/03/00 +0000, Andy Bassam wrote: > >hi, > >as a part of my final year project I am building for disabled people. I > >need to control television and telephone using PIC . any > >suggestions welcome > > \\\|/// > \\ ~ ~ // > ( @ @ ) > ----------------------------oOOo-(_)-oOOo-------------------------------------- > ! ! > ! Chaipi Wijnbergen ! > ! Electronics/Computer Eng. M.Sc. Tel : +972-8-9343079 ! > ! Optical Imaging Laboratory Fax : +972-8-9344129 ! > ! Brain Research Center Email : .....chaipi.wijnbergenKILLspam@spam@weizmann.ac.il ! > ! Weizmann Institute of Science URL : http://www.weizmann.ac.il/~chaipi ! > ! Rehovot 76100 ISRAEL ! > ! ! > ------------------------------------Oooo.-------------------------------------- > .oooO ( ) > ( ) ) / > \ ( (_/ > \_) -- I re-ship for small US & overseas businesses, world-wide. (For private individuals at cost; ask.)

Hi Chaipi, I'm new in pics, but i've completed some simple thinks like alarms, leds blinking , etc. My new proyect is to make a learning IR control like you did. But my code has some fails. I mean, program save and play the data, but i think that doesn't play what it read. Probably timer troubles. Àcould you showme your code to take some ideas?. I think that the limited ram space will give me some troubles for save multiples buttons in a future. Thanks in advance. (sorry for my English) {Original Message removed}

<x-flowed>Hi Rodrigo, In order to be able to be able to reproduce any IR command, I did the following: 1. Added 32KB of external RAM. 2. Made a timer routine that was able to measure pulses length and kept pulse duration in 16 bits for each incoming pulse. 3. Used modulated PWM output at the needed frequency and gated by the pulse duration as measured. You can not implement my algorithm without external RAM since each pulse train was kept as a list of time measurement which was longer then the side of file registers in the PIC16C74. Chaipi At 15:06 02/03/00 -0400, Rodrigo J. Castillo M. wrote: {Quote hidden}>Hi Chaipi, > > I'm new in pics, but i've completed some simple thinks like alarms, leds >blinking , etc. >My new proyect is to make a learning IR control like you did. But my code >has some fails. I mean, program save and play the data, but i think that >doesn't play what it read. Probably timer troubles. Àcould you showme your >code to take some ideas?. I think that the limited ram space will give me >some troubles for save multiples buttons in a future. > > Thanks in advance. (sorry for my English) > > > >{Original Message removed}

>You can not implement my algorithm without external RAM since each pulse >train was kept as a list of time measurement which was longer then the side >of file registers in the PIC16C74. You may wish to use RAM while you develop it, but would it then not make sense to copy it into external EEPROM. Otherwise you may need to reload it every time you change the batteries. I would be very tempted to have the RAM on a daughter board (with a lithium cell) that plugged into a socket suitable for an EEPROM, so you can remove the RAM to change the pattern in it or copy it into an EEPROM.