MEL PICBASIC Forum - Darrel Taylors Works

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Recent Forum Posts

Re: InfraRed ramblings

Yeah, these are unipolar steppers, not bipolar.

I'm using the ULN2003 as driver that came with them. I'll be switching to a ULN2803 for my use.
Demon - 16th July 2025, 23:27

Re: InfraRed ramblings

I bought some of those stepper motors you linked above. Really cheap, small with a gearbox, but be aware they are wired so you cannot use them with a standard stepper driver module. These have five...
mark_s - 16th July 2025, 16:38

Re: InfraRed ramblings

Thanks Mark!

I was considering laying a limit switch flat along the outer edge of the disk, and use a notch to catch the limit switch roller. But I'm liking the hall sensor even more:
- no...
Demon - 16th July 2025, 03:24

Re: InfraRed ramblings

You can also use a hall effect IC and a small magnet. The hall effect ic's come in a 3 pin TO-92 package and are easy to interface to your micro.

For example
...
mark_s - 16th July 2025, 00:16

Re: InfraRed ramblings

ARGH! That's what they're called. :D I knew these existed, I just didn't know their names.
Demon - 15th July 2025, 22:53

Re: InfraRed ramblings

Search optical interrupter. These are used often for homing.
...
mark_s - 15th July 2025, 18:29

Re: InfraRed ramblings

There will be minimal light leakage. These will be on either side of a disk, as close as I can get them.

I plan on putting black heatshrink over the LEDs as close as I can to the rotating disk.
...
Demon - 15th July 2025, 03:35

Re: InfraRed ramblings

if there is any ambient light leakage a ir sensor like SEN-19018 would be better than a photo diode, with the bonus of making
led modulation unnecessary too.

if the distance between led and...
richard - 15th July 2025, 02:54

InfraRed ramblings

Using this 940nm LED set on Amazon: https://www.amazon.ca/dp/B01HGIQ8NG

Can I have the transmitter LED on without any pulsing? (resistor values are temporary, did not do any calculations yet)
...
Demon - 15th July 2025, 01:52

Darrel Taylors Works
MIBAM - (Mirror Imaged Bit Angle Modulation)

MIBAM (pronounced "My BAM")
Which stands for ... "Mirror Imaged Bit Angle Modulation"
An ...

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MIBAM - More Info

Published on - 3rd March 2016 08:28

Option DEFINEs and Constants
BAM_COUNT CON xx
This constant must match the number of BAM_PINS being used.

...

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MIBAM - (Mirror Imaged Bit Angle Modulation)

Published on - 3rd March 2016 08:27

Cylon Scanner

Here's another quick example that simulates a Cylon or Kitt car scanner.

It's running ...

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Temporary central repository of Darrel Taylor's works (including Mr E's Multicalc)

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Darrel Taylor

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Published on - 3rd January 2015 12:38

This has come up several times, and likewise, I've tried to approach it several times...

After a 6 month pause ...

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Re: Elapsed Timer Demo

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Darrel Taylor

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Published on - 3rd January 2015 12:36

It keeps running in the background.
The interrupts will not wait for PBP statements to finish.

Ok fine, ...

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Re: Temporary central repository of Darrel Taylor's works (including Mr E's Multicalc

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Demon

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Published on - 3rd January 2015 12:35

Since Darrel's site is down and the archives might have older versions, this is what I have so far.

...

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Re: Temporary central repository of Darrel Taylor's works (including Mr E's Multicalc

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pedja089

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Published on - 3rd January 2015 12:35

Great idea!
Just found this on my PC:

...

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Re: Temporary central repository of Darrel Taylor's works (including Mr E's Multicalc

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pedja089

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Published on - 3rd January 2015 12:34

Here is my version of Darrels 10bit HPWM_L. Original version works with PBPW. There is comments in code, what is changed. ...

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Re: Temporary central repository of Darrel Taylor's works (including Mr E's Multicalc

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Demon

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Published on - 3rd January 2015 12:33

v1 Dec 30,2006 USBDemo.pbp (PBP & VB)

v1 May 8, 2007 USBDemo_2455.pbp (PBP)

...

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Re: Temporary central repository of Darrel Taylor's works (including Mr E's Multicalc

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pedja089

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Published on - 3rd January 2015 12:30

SPWM_INT with example:
...

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Re: Temporary central repository of Darrel Taylor's works (including Mr E's Multicalc

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Demon

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Published on - 3rd January 2015 12:21

Temporary post, just storing attachments lifted from old computer.
(Attachments get deleted after a while if they ...

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Re: Temporary central repository of Darrel Taylor's works (including Mr E's Multicalc

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pedja089

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Published on - 3rd January 2015 12:19

Here is Run-Time Config :
Original thread:
http://www.picbasic.co.uk/forum/showthread.php?t=4093

...

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Darrel Taylors Works