Comments for British Engineering Systems http://britishengineeringsystems.com Blog of an Engineer (amongst other things) Wed, 10 Mar 2010 23:42:52 +0000 http://wordpress.org/?v=2.2.1 Comment on Here it is….. by Jabber http://britishengineeringsystems.com/2009/10/10/109/#comment-2664 Jabber Sun, 21 Feb 2010 15:20:54 +0000 http://britishengineeringsystems.com/2009/10/10/109/#comment-2664 This is quite interesting to find, as I have done something similar myself. Unfortunately I cannot read the .sch files, as it looks like they are some binary format instead of the text format that gEDA expects. Would it be possible for you to post the schematics as simple pictures? In my design (see http://www.milovana.com/forum/viewtopic.php?t=3327 for details and schematics) I was able to avoid an extra PCB by using a longer plastic tube to transmit the pressure to the pressure sensor on the main PCB. (Btw, I have experience of open source software licensing, and you have done it absolutely right.) This is quite interesting to find, as I have done something similar myself.

Unfortunately I cannot read the .sch files, as it looks like they are some binary format instead of the text format that gEDA expects. Would it be possible for you to post the schematics as simple pictures?

In my design (see http://www.milovana.com/forum/viewtopic.php?t=3327 for details and schematics) I was able to avoid an extra PCB by using a longer plastic tube to transmit the pressure to the pressure sensor on the main PCB.

(Btw, I have experience of open source software licensing, and you have done it absolutely right.)

]]> Comment on Mark 2 PCB by Martin http://britishengineeringsystems.com/2009/09/12/mark-2-pcb/#comment-2649 Martin Thu, 18 Feb 2010 23:30:10 +0000 http://britishengineeringsystems.com/2009/09/12/mark-2-pcb/#comment-2649 Hi Peter, I am a teacher in secondary school in Oxford. We have one Duet Mk1 made by Boxford. It hasn't got Control panel/ interface, all PCBs are in place. Would you be able to give me some instructions or advise how to make or where to find one? Boxford doesn't keep any old stuff, I spoke to them as we buying a new one as well. Please let me know if you can help. Regards Martin Hi Peter,

I am a teacher in secondary school in Oxford. We have one Duet Mk1 made by Boxford. It hasn’t got Control panel/ interface, all PCBs are in place. Would you be able to give me some instructions or advise how to make or where to find one?
Boxford doesn’t keep any old stuff, I spoke to them as we buying a new one as well.

Please let me know if you can help.

Regards

Martin

]]> Comment on Here it is….. by Ceeej http://britishengineeringsystems.com/2009/10/10/109/#comment-2370 Ceeej Mon, 21 Dec 2009 17:29:18 +0000 http://britishengineeringsystems.com/2009/10/10/109/#comment-2370 I hoped correctly, there is plenty of fun.... I hoped correctly, there is plenty of fun….

]]> Comment on Here it is….. by Ceeej http://britishengineeringsystems.com/2009/10/10/109/#comment-2206 Ceeej Thu, 29 Oct 2009 22:33:45 +0000 http://britishengineeringsystems.com/2009/10/10/109/#comment-2206 I got your code working on a stripboard layout, my bootloader was killing things because I was missing a pull-up resistor. I embedded the EEPROM messages in the .asm file using DE statements org'd to 0xF00000 and incremented for each item. I don't have a USB to serial adapter board so have attached a MAX232, just need some time to hook it up to the PC now. Thinking about wedging the code into the M'chip CDC USB framework and eliminating the RS-232, looks complicated though. I'm considering Internet enabling it as well, perhaps an MSN plugin... Again, thanks for posting the code, it's generated quite a bit of interest here and hopefully there's plenty of fun to be had. I got your code working on a stripboard layout, my bootloader was killing things because I was missing a pull-up resistor.

I embedded the EEPROM messages in the .asm file using DE statements org’d to 0xF00000 and incremented for each item.

I don’t have a USB to serial adapter board so have attached a MAX232, just need some time to hook it up to the PC now.

Thinking about wedging the code into the M’chip CDC USB framework and eliminating the RS-232, looks complicated though.

I’m considering Internet enabling it as well, perhaps an MSN plugin…

Again, thanks for posting the code, it’s generated quite a bit of interest here and hopefully there’s plenty of fun to be had.

]]> Comment on Here it is….. by peter http://britishengineeringsystems.com/2009/10/10/109/#comment-2202 peter Sat, 24 Oct 2009 13:45:50 +0000 http://britishengineeringsystems.com/2009/10/10/109/#comment-2202 I never put them in the EEPROM from the code. I just opened the EEPROM view and entered them there. That's something I have to look into then. It also appears that I forgot to include the hex file with them in (I have now posted that above. if you import that into MPLAB then go to the EEPROM view you will be able to see the function names) Thanks for showing an interest, hope you have fun with it. I never put them in the EEPROM from the code. I just opened the EEPROM view and entered them there. That’s something I have to look into then. It also appears that I forgot to include the hex file with them in (I have now posted that above. if you import that into MPLAB then go to the EEPROM view you will be able to see the function names)

Thanks for showing an interest, hope you have fun with it.

]]> Comment on Here it is….. by Ceeej http://britishengineeringsystems.com/2009/10/10/109/#comment-2198 Ceeej Fri, 23 Oct 2009 18:15:28 +0000 http://britishengineeringsystems.com/2009/10/10/109/#comment-2198 I might be missing something, but i can't find any mesages in EEPROM? They don't appear to be in the .ASM file.... I might be missing something, but i can’t find any mesages in EEPROM? They don’t appear to be in the .ASM file….

]]> Comment on First Prototype unit finished. Most spiffing!! by Ceeej http://britishengineeringsystems.com/2009/09/30/first-prototype-unit-finished-most-spiffing/#comment-2165 Ceeej Thu, 08 Oct 2009 21:03:16 +0000 http://britishengineeringsystems.com/2009/09/30/first-prototype-unit-finished-most-spiffing/#comment-2165 Oooh, shiny. Look forward to perusing the schematics and code. Oooh, shiny. Look forward to perusing the schematics and code.

]]> Comment on Another little side line…. by Petruchio101 http://britishengineeringsystems.com/2008/05/15/another-little-side-line/#comment-1878 Petruchio101 Mon, 04 May 2009 17:40:27 +0000 http://britishengineeringsystems.com/2008/05/15/another-little-side-line/#comment-1878 Sorry, haven't check back in a long while. There are a lot of variations on the "idea", but the first thing that popped to mind was a PC muscle trainer. The device would put the user on a schedule, having to squeeze the PC muscle regularly. The stronger the squeeze, the more intense the vibration... The next part is a bit insidious, but the device could incorporate some kind of electrical shock for bad behavior. There are numerous devices being sold online to use in BDSM play, but none are "intelligent". In the scenario above, the user might get a shock if they didn't squeeze on schedule or hard enough. Shock intensity could be user-controlled and vary from mild to really intense. If you combine this with some kind of interface, you could develop all kinds of fun "peripherals". Imagine a fellatio training device with sensors to detect insertion and depth, for example. This definitely takes the device into another realm as a BDSM toy, but these relatively simple mods would increases its appeal to a broader group. Sorry, haven’t check back in a long while. There are a lot of variations on the “idea”, but the first thing that popped to mind was a PC muscle trainer. The device would put the user on a schedule, having to squeeze the PC muscle regularly. The stronger the squeeze, the more intense the vibration… The next part is a bit insidious, but the device could incorporate some kind of electrical shock for bad behavior. There are numerous devices being sold online to use in BDSM play, but none are “intelligent”. In the scenario above, the user might get a shock if they didn’t squeeze on schedule or hard enough. Shock intensity could be user-controlled and vary from mild to really intense.

If you combine this with some kind of interface, you could develop all kinds of fun “peripherals”. Imagine a fellatio training device with sensors to detect insertion and depth, for example.

This definitely takes the device into another realm as a BDSM toy, but these relatively simple mods would increases its appeal to a broader group.

]]> Comment on The grass is cheaper on the other side by peter http://britishengineeringsystems.com/2009/03/05/the-gress-is-cheaper-on-the-other-side/#comment-1855 peter Sat, 14 Mar 2009 19:01:06 +0000 http://britishengineeringsystems.com/2009/03/05/the-gress-is-cheaper-on-the-other-side/#comment-1855 I have ordered 2 so that I can build one unit up as a beta version to be tested, and a second I will keep so that I can make firmware upgrades and test them on exactly the same unit that the beta tester will have. since sending the design off I have already found a few mistakes so there will be another version at least after this one, if you want to build your own one there is so little there you could build it on strip board. I will tidy up the schematic and post it up here and a hex dump of the current software. I have ordered 2 so that I can build one unit up as a beta version to be tested, and a second I will keep so that I can make firmware upgrades and test them on exactly the same unit that the beta tester will have. since sending the design off I have already found a few mistakes so there will be another version at least after this one, if you want to build your own one there is so little there you could build it on strip board. I will tidy up the schematic and post it up here and a hex dump of the current software.

]]> Comment on The grass is cheaper on the other side by clint http://britishengineeringsystems.com/2009/03/05/the-gress-is-cheaper-on-the-other-side/#comment-1854 clint Sat, 14 Mar 2009 18:34:28 +0000 http://britishengineeringsystems.com/2009/03/05/the-gress-is-cheaper-on-the-other-side/#comment-1854 So when you say 'boards' does that imply you have ordered more than one? If so will you be selling them extra or do you have a home for them already? So when you say ‘boards’ does that imply you have ordered more than one? If so will you be selling them extra or do you have a home for them already?

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