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OK, I managed to figure myself the most elementary interrupt service routine coding I needed. In case anyone wants to see how this works here is the correct code:
For the interrupt subroutine:
void interrupt()
{ //Interrupt for detected 5V signal to RB0/INT pin 33 of PIC16f877A...
I'm a newbie here, know little of uC's but if I had to invent something simple to do as you say without using rotating blades (maybe it's not so bad to use these as you think?). Here is what I would do. I would make my own sensor. First guess would be to get a small antenna and center a ping...
Thanks wp, sorry about the delay - in my situation things can completely occupy me around the clock when it goes bad, or I'd have been back sooner.
- I'd like to stick with an interrupt since that is how I initially thought of this. Later I'll worry about how to do it on other input types...
Thanks wp
So I don't stray from the subject for others (although the truth is a single subject thread isn't nearly enough first aid for this), first on the interrupt RB0 pin comment. Coincidentally, I do have exactly a 10KΩ resistor to Vdd on RB0, and honestly I didn't have a reason except to...
Hi wp
Thanks for the switches reference since it also has some basic interrupt things that are well written for even me to understand. It will take me a while so I won't be on a Big Dog Safari this evening; everything I do is in tiny spurts and I never can concentrate because of the situation...
Hello wp and thanks for the tips,
The LCD code is as small as I can imagine, but the problem I worry about is what you said in the first two main program instructions here. I checked and PORTD looks doable although as I said I am just starting this and it is complicated at first glance to...
RB0/INT pin Interrupt Handling Using PIC16F877A
Hello world; I just joined this forum in hope of learning something important ... just starting and learning the hard way (no emulation software yet) .
Q: If I program an interrupt service routine to respond to an external generated high input...
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