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  • Buzby's Avatar
    09-01-2018, 20:16
    Buzby replied to a thread i2c read times in Active PICAXE Forum
    The problem now is that 'most places' are on the Internet only, and if you are short of a bit that you need today there is nowhere else to go. ...
    34 replies | 1014 view(s)
  • Buzby's Avatar
    09-01-2018, 19:08
    Buzby replied to a thread i2c read times in Active PICAXE Forum
    I must admit I find the NXP datasheets, ( for all their devices ), a bit daunting. That's why I tend to search for an equivalent from a different...
    34 replies | 1014 view(s)
  • Buzby's Avatar
    08-01-2018, 23:15
    Buzby replied to a thread i2c read times in Active PICAXE Forum
    This screenshot from the datasheet in post#9 shows how to wire a bus. The product shown also includes a power distribution bus, that's why the...
    34 replies | 1014 view(s)
  • Buzby's Avatar
    06-01-2018, 13:58
    Buzby replied to a thread i2c read times in Active PICAXE Forum
    It's an 8 pin DIP, and if you've not got room for that on a 100sqcm PCB then it must be a *very* packed PCB :) Post a screenshot of the layout, I...
    34 replies | 1014 view(s)
  • Buzby's Avatar
    05-01-2018, 18:28
    Buzby replied to a thread i2c read times in Active PICAXE Forum
    That's nice to hear. Now add 10 more cables and LCDs, let us know how it works then !.
    34 replies | 1014 view(s)
  • Buzby's Avatar
    05-01-2018, 15:38
    Buzby replied to a thread i2c read times in Active PICAXE Forum
    It's not a seperate processor, it's a 'level shifter / line driver' type of chip, just like you would need with either RS485 or RS232 in a noisy...
    34 replies | 1014 view(s)
  • Buzby's Avatar
    05-01-2018, 14:31
    Buzby replied to a thread i2c read times in Active PICAXE Forum
    That sounds like a 'noisy' environment, I'd definatley steer clear of basic I2C !. However, the 'transparent' read/write of I2C is very...
    34 replies | 1014 view(s)
  • Buzby's Avatar
    05-01-2018, 13:53
    Buzby replied to a thread i2c read times in Active PICAXE Forum
    Hi Danners, I2C is designed for short distance comms between chips, up to 30cm if I remember. Are you planning for slaves many metres apart ?....
    34 replies | 1014 view(s)
  • Buzby's Avatar
    04-01-2018, 20:09
    It's still there ....
    2 replies | 395 view(s)
  • Buzby's Avatar
    31-12-2017, 14:22
    Are you sure the error is related to the 'CR' / 'LF' ?. It's strange because I use "serout ....... cr, lf )" lots of times, and never get errors...
    4 replies | 248 view(s)
  • Buzby's Avatar
    21-12-2017, 15:00
    Buzby replied to a thread Triggered I/O in Active PICAXE Forum
    Hi Tex, It looks like you are on the right track, but I'm still concerned about releasing magic smoke when you have a few devices connected and a...
    19 replies | 880 view(s)
  • Buzby's Avatar
    21-12-2017, 12:11
    Buzby replied to a thread Triggered I/O in Active PICAXE Forum
    I thought you had PCBs already made, that surely would fix the pin usage. It does matter, as not all pins on the 20X2 have pullup ability. ...
    19 replies | 880 view(s)
  • Buzby's Avatar
    21-12-2017, 03:11
    Buzby replied to a thread Triggered I/O in Active PICAXE Forum
    Hi Tex, It's too late ( 02:16 here ) for me to explain my idea in detail, but so I can start tomorrow, what pins on the 20X2 are you using for...
    19 replies | 880 view(s)
  • Buzby's Avatar
    21-12-2017, 02:02
    Buzby replied to a thread Triggered I/O in Active PICAXE Forum
    Hi Tex, Thats what I 've shown above. Each node triggers the next, left to right. Are we singing from the same hymnsheet now ? Cheers, ...
    19 replies | 880 view(s)
  • Buzby's Avatar
    20-12-2017, 23:18
    Buzby replied to a thread Triggered I/O in Active PICAXE Forum
    Looking at your block diagram, it is unclear how further devices would connect. Edit : If in 'normal' operation you need each device to start...
    19 replies | 880 view(s)
  • Buzby's Avatar
    20-12-2017, 21:29
    Buzby replied to a thread Triggered I/O in Active PICAXE Forum
    If the 'Trig_IN' pin is an input to a PICAXE, and the 'Trig_OUT' is a normal PICAXE output from the same chip, then there will be no problem...
    19 replies | 880 view(s)
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    In reply to "Programming 20M2 simulation to reality" i've sent you the code through a private message, thanks
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About Buzby

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About Buzby
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Recent Entries

'Coke Can' RC car conversion

by Buzby on 24-01-2017 at 22:17
Prompted by edmund's miniature line follower ( http://www.picaxeforum.co.uk/showthr...r-final-strech) , I've started one of my own.

Not being in possession of the requisite tools ( i.e skills and patience ) for building a miniature vehicle, I bought one ready built.



With the body off it looks like this. ( USB for size comparison )

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Pinball playfield wallart project

by Buzby on 10-08-2014 at 14:00
Work in progress !!!!

I had a Space Invaders pinball playfield overlay stashed in the attic, and I decided to do something with it.

A PICAXE 20X2 and a pair of antique MM5451 driver chips, plus lots of LEDs and wires.

Still more work to do on it, but it's looking good already.

Updated 10-08-2014 at 19:36 by Buzby

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8x8x8 PICAXE LED cube project

by Buzby on 08-07-2012 at 16:46
Following on from the hijacked thread in the forum, I decided to open a blog (ugh!) to carry it on in.

Quote Originally Posted by DDJ2011 View Post
My background is in software development, and while I like the electronics (altho I'm not very good at it) I'm going to get as much of a kick out of designing the patterns as I will out of actually making a big cube that works.
Did you look at cubesense ?

It seems that it is just one of many tools to let you program routines in VB or C which generate

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The PICaxe orrery

by Buzby on 19-09-2011 at 20:01
The orrery is started !

I've got some rough code ready, and the PCB design is almost finished.

( When I find a fabricator who can do it for less than £50 inc P&P I'll order the PCB. )

I originally thought I would need multiple PICaxes, but I've got it down to one 40X2.

It really has been a challenge just getting this far. I've had to write VB to automate the main part of the PCB layout, and more VB to connect the LEDs, and even more VB

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Updated 19-09-2011 at 22:41 by Buzby

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PICAXE User Projects