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Prototyping Boards
I'm old school and still build prototypes (as well as designing my code on paper first). Most of my stuff is more than just an 'Arduino + Shield' so I tend to end up hanging...
Wed. Aug 15, 2018 - 08:15 AM
Datasheet Archive
There's been a couple of posts recently where people have been caught out by errors in the datasheets. I too spent a couple of hours wondering why a critical timing was off until...
Wed. Jul 18, 2018 - 10:59 AM
Trying To Find A Switch
I've having a fine time trying to find a switch like this. I need the wider cap version, 17.3mm wide (the one in the picture is 12.4mm) with a red cap and single LED hole.  ...
Wed. Jul 11, 2018 - 03:03 PM
Speed of Maths Operations, especially floating point
Compiler: Codevision v3.32 Processor: 1284P at 16MHz Test code: while (1) { PORTC.6 = 1; val1 = val1 / val2; PORTC.6 = 0; }float is a 32-bit...
Wed. Jul 4, 2018 - 01:58 PM
Register Initialisation And The Dreaded "|="
Where does the horrible practice of using "|=" to set initial values come from?   Somewhere out there must be a highly ranked webpage which tells people that it's the right...
Mon. Jul 2, 2018 - 07:35 AM
Interesting Chip - Differential I2C
Need to send I2C over a long cable?...   https://www.nxp.com/products/ana...   ...and with a Sparkfun breakout board...   https://coolcomponents.co.uk/pro......
Sun. Jun 10, 2018 - 02:14 PM
Old Meets New
Two technologies over 60 years apart...       Yes, that's a terminal strip board designed to mate with the Pi.
Mon. Apr 9, 2018 - 02:16 PM
Interrupts Not Required
I've been tidying my filing cabinet and came across an article describing an approach to co-operative multitasking which makes an interesting statement about the approach......
Mon. Mar 26, 2018 - 10:27 AM
'Reversed' DIP Switch
Ever DIP/DIL switch that I've seen has been numbered from Left to Right...       ...which is fine unless you are using it to set a numeric value when it feels back...
Fri. Feb 23, 2018 - 10:58 AM
Code Extraction
Has anyone ever seen any hard evidence that the $500 code extraction works? There are plenty of forum posts all over the net that mention it but I have never seen any evidence of...
Wed. Jan 31, 2018 - 09:37 PM
Signal Generator on Steroids
I've got a project coming up where I need a signal generator on steroids to help in the development. I need to generate a signal which can go up to 30v or more in voltage mode and...
Fri. Jan 26, 2018 - 07:46 PM
Capacitors on Reset Pins
From another topic...   durandal wrote: I guess I should just omit C1 in future designs. Everyone's feedback has suggested that it is not needed, and may be detrimental with...
Tue. Jan 23, 2018 - 08:47 AM

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