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Upon power on, 'the first array of LCD lighting up' is the default behavior of the LCD.
That means it has not yet been properly initialized or cleared.
As far as I know, the CCP module of PIC18F is capable of capturing L2H and H2L transitions. (This switching back and forth should be implemented in program dynamically.) Indeed I'm using it (a PIC18F4550) for IR signal decoding.
Obviously, an in-depth understanding of the rationale of the various types of FET is import and helpful in remembering their circuit symbols. I'll sit down and do some more review and try to figure out a way and report here as long as I think it's worthwhile.
Of course, any kind of inputs are...
Thanks, Alex.
Your method is somewhat indirect and a little bit difficult for me to remember (You may feel quite comfortable with it though). Ideally I want to have an intuitive way to remember preferably based on its rationale with which I need not remember anything mechanically.
I hope I'm...
FET(Field Effect Transistor) is a powerful component. And there are a wide variety of FET's available.
I want to know how all those FET's got their schematic symbols and then get a way of remembering their respective symbols based on a good understanding.
Thanks in advance.
You can have a dedicated variable, say 'ten_minutes', for your 10min delay in the timer ISR, and poll it constantly while you can still do other work:
unsigned char ten_minutes = 0;
/*****************************************************************************
Timer1 Interrupt, executed...
These language features are not designed just for PIC's. They are part of the ISO C language standard.
The reasons why they are used so often include, but not limited to:
- We need it;
- We like it;
- It gives us concise code and elegance.
Attached is one of the ultrasonic sample programs written for 8051 chip which comes with my devboard I've ever bought.
One thing to make clear is that it's not of high quality and can just serve as a reference.
In general the rationale of ultrasonic distance measurement is based on measuring the time interval for the wave to travel. That means this or that timer will be inevitably utilized.
Mmm, I'm sorry for not being so able to give you a list of the common faults while playing with uC stuffs for the time being - I'm also a beginner in this area :-P. However, since you have a very good related education background, and according to my experiences of learning things, I think...
I have also made plenty of such equally annoying mistakes. :lol:
This does underline the grave importance of EXTREME carefulness in playing with real electronics projects (not limited in the electronics domain indeed).
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