adamwg

No luck yet. Good idea about glueing a 4mm shaft in. i might try and take apart an encoder with a 6mm plastic shaft, put it in a drill and kind of make a makeshift lathe and machine it down. Farnell now stock mentor knobs with and without an indicator that will fit 6mm shafts. They are by far the best i've found so far.

Hi, Does any one know where to buy rotary pots and encoders with 4mm shaft? I've been searching the internet all week and cant find them anywhere in the UK. I think Reichelt do some. But as im not buying enything else from them and because of the minimum order quantity this is'nt an option.

Thank you I just realised that regulators regulate the current as well as power. Now i can finish designing and start building :-)

I have an firewire audiophile soundcard that i am going to take out of the casing and put inside my new box. I want to reduce the amount of equipment and cables i carry around with me. This way i would only have a laptop, 1 midibox, 2 power leads, 1 firewire cable and 1 phono cable.

I am currently designing my next midibox and intend to build a sound card into it. As the soundcard is firewire and my laptop does not supply power via firewire, i need two power supplies on the midibox. one to the core and one to the sound card. How do i supply both of these with power with one supply? they both require different voltages and different currents. What size supply would i need (is it as simple as added the two together and buying a PSU larger enough)? How do i control the current? The soundcard is 12V 1A The core would be about 9V 500mA

Good evening all I'm having trouble compiling a C code. When I run the make file I get this message 'Can't open perl script "tools\mkmk.pl": No such file or directory Bad command or file name' The tools folder and mkmk.pl file are there in the same folder as the rest of my main.c files etc. I have all the programs needed installed (perl,sdcc and gnupils) as described on the c interface page. Why is it not working?

I finaly got new pic's and have programmed them with the broccoli burner. I Not sure what i did to kill 2 pic's, but I know now to test every pot and button before even thinking about putting the pic into its socket and turning the box on. Thank you Alex for pointing me in the right direction. Being impatient did'nt really get me anywhere. I still had to order some pic's anyway. Still at least I've learned a bit more and know not what to do next time.

I finally got the lcd to work.I got my pic's today and it all works fine. I think the lcd will not work unless a midi box application is loaded. I think this was probably why i could'nt get it to work before.

Ive finaly got hold of a data sheet for the SN102 94V0. The pinning is standard. (the same as the wiring diagram on the lcd page) i'm not sure why i cound'nt get it to work though. hopefully i'll get my new pic's soon and i can get it working. If any one wants a copy of the data sheet i will email it to them.

I bought them from votis. the pot is wired correctly. its extactly the same as the other 30 connected to the ain, which all work fine. I'm going to order some more pic's. but in the mean time i'm going to check the core module and ain over.

Ive spent the last 3 months building my midibox to work. plus upto 2 months before this researching electronics because i have no experience. i've just fryed a pic and and want a replacement quickley as i've got this week of work before i start a new job. So please don't get angry with me. Besides forums are here to help are they not? I did have a look at the thread on the broccolli burner but dismissed it a. because it is an old thread from before the pic burner was released. so i assume that the pic burner would be a better. b. because i considered this a bit experimental for my capabilities. yes it is very simple to build but i don't want to end up frying more pic's as i really don't have much spare time or money. Which is why im building a midibox and not buying an Allen and heath zone 92 or pioneer djm800 Im probably wrong i'll give the broccolli burner a closer look.

There is no makers name just a part code - KL SN102 94V-0

HI, I want to make a pic burner but dont want to wait for a pcb through the post (this normaly takes a couple of weeks) and dont want to buy copper clad boards etc. just for 1 pcb. Can any one give me anymore info on how to make one on strip board? Staring at the photo of the one on the PIC burner page and trying to work it out from the schematic might just send me a little mad. A picture of the back would be helpfull

cheers smash i dont think the lcd i have is compatible. It would help if i could find some kind of data sheet for it. the pins seem to be straight forward they are numbered on the pcb.

I got a new pic and everything was working fine. I started to connect up my modules. but there was a problem straight away. one of the pots was not working correctly. there was power to it but no output. if i turned the pot it sometimes reset the core. i disconnected the pot and tested it ,it was fine. it seems there is a problem with the ain. strange as i have not touched any of the wiring and all the pots worked fine before. Before i had a chance to find the problem my new pic seems to have died exatly as the last one. I cannot find any short curcuits any where all voltages seem to be ok most of the time. i regulary check the supply voltage at several points. sometimes the core seems to drain alot of power (if i have 7 volts supply this normaly what i read at j1 of the core. sometimes will only be 4 or less). The regulator also seems to get very hot. Can anyone please help me?