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Continuity/Current-Sense Circuit Optimization
Therac-25 and some other prominent software "oops's" feature prominently in my mind very often.  But, I must say.  What I'm working on isn't that critical. ...
Friday, 4 March 2016 - 14:22
Moore Finite state machines in programming
Interesting. I hadn't realized that formal FSM theory was of importance in high integrity systems ( makes sense though ).  I've been wanting to learn SPARK for quite some...
Friday, 4 March 2016 - 14:12
Continuity/Current-Sense Circuit Optimization
I appreciate the input from people with ( much ) more experience in this than I.  It's a learning curve to be sure.   Also, I seem to design by the maxim that, "too much...
Friday, 4 March 2016 - 05:41
Continuity/Current-Sense Circuit Optimization
I need to take another look at the circuit myself, but yes, I think I should be able to detect defects all the various components I may have.  Additionally, I was already...
Thursday, 3 March 2016 - 06:10
Continuity/Current-Sense Circuit Optimization
So I've done some more research ( I've got to learn not to depend upon my memory... my ECC doesn't always work... ).  Anyhow, a typical Estes igniter is typically around 0.8...
Wednesday, 2 March 2016 - 01:53
Moore Finite state machines in programming
I have to agree that, typically, FSMs are simply hidden in code.  The most basic FSM I can think of ( except for, perhaps, the traffic lights example above ).  Is an LED...
Wednesday, 2 March 2016 - 00:26
Continuity/Current-Sense Circuit Optimization
First, Ross... Yes, you said exactly what I meant to say.  I must be tired.  The whole point of having that divider there, of course, is to scale the battery voltage...
Tuesday, 1 March 2016 - 07:00
NEWBIE HELP: C++ LISTS
I would do this entirely differently -- with an array ( very likely wrapped in a class, mind you ).  The issue is that an embedded system rarely needs dynamic memory...
Friday, 22 January 2016 - 06:34
Solved: Feeding a variable into a function
The documentation has a nice little diagram that describes how the heap and stack are allocated which, in combination with the "data memory used" information, is enough to figure...
Monday, 18 January 2016 - 01:27
Samd21 Delay functions
If you are avoiding the Arduino Libraries, one wonders why you are concerned about software delay functions.  Using hardware timers is a much better way to do timing in an...
Thursday, 31 December 2015 - 20:30
Using current sensing with a servo motor to measure force
I'll post the schematic of the device I'm working on below, but it would likely be more confusing than helpful.  What it basically consists of is a low-side current sense...
Thursday, 31 December 2015 - 20:12
Using current sensing with a servo motor to measure force
I'm in the middle of designing a current sense circuit for servos, and I'm having quite good luck at it.  I'm using some pretty nice components ( Maxim MAX44251 op-amp for...
Thursday, 31 December 2015 - 07:17

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