hi sir tell me the differences between arduino and rasberri
How long have you got?
(Assuming you meant "Raspberry Pi")
why rasberri consider as a system.
but arduino also easily communicated with all usb devices including hub, printer and display...still arduino not consider as a system... why...?
Raspberry Pi: runs operating system, with command line and/or GUI. Massive memory.
Arduino: bare metal programming. Tiny memory.
RPi: complete system based around a microprocessor. Basically a complete desktop computer in a tiny footprint. Has an OS, so you don't know when your program gets processor time. Not well suited for real time programming.
Arduino: microcontroller. For controlling machines. No OS, you have full control over the processor, what it does, and when. Suited for real time programming.
EVERY PROCESSOR HAS OS.....
BUT SOME PROCESSORS LIKE 80-86 HAS NO OS...BUT THAT IC'S ARE WORK...
SO ARDUINO ALSO WORKS WITHOUT OS...
WHY ARDUINO NOT CONSIDERED AS AN PROCESSOR BASED SYSTEM...
ARDUINO INTERNALLY HAS PROCESSOR...
SO IS THERE ANY CHANCES TO BUILT A SMALL SYSTEM USING ARDUINO....
sudhamohan:
EVERY PROCESSOR HAS OS.....
@sudhamohan, please stop SHOUTING. I also noted you doing it in another Thread.
And please note that English speaking readers will interpret the .... at the end of your lines as meaning that the line is not complete. A single full-stop terminates a sentence.
...R
sudhamohan:
SO IS THERE ANY CHANCES TO BUILT A SMALL SYSTEM USING ARDUINO....
For starters, no need for all caps.
Then, please define "system".
I'm constantly building all kinds of control systems with Arduinos - and related microcontrollers: various ATmega and ATtiny MCUs and/or the ESP8266. Some projects even have multiple MCUs, not counting the ones that are embedded in the sensors.
but arduino also easily communicated with all usb devices including hub, printer and display
This is false. You have been unable to get your dot matrix printer to work so how can it be easy? Many people have trouble using the USB Host Shield library and max3421e.
sudhamohan:
EVERY PROCESSOR HAS OS.....
Who told you this?
BUT SOME PROCESSORS LIKE 80-86 HAS NO OS...BUT THAT IC'S ARE WORK...
8086 and 8088 (PC/XT) ran fine. I had multi-tasking Basic run on one of mine but usually the system was my software, whatever I put on them along with DOS. That's what I LIKED about them, no OS to screw up my system. I ran Pentiums that way too.
SO ARDUINO ALSO WORKS WITHOUT OS...
Yes, you have to write your own bugs on Arduino. Big deal.
WHY ARDUINO NOT CONSIDERED AS AN PROCESSOR BASED SYSTEM...
ARDUINO INTERNALLY HAS PROCESSOR...
You're just full of this stuff. Maybe you mistake the difference between a Microcontroller and Computer CPU or some person's use of the word system.
AVR chip Arduinos have little room for program. The sketch is the system, that is what setup() and loop() are for.
Some ARM chip Arduinos can run Linux.
SO IS THERE ANY CHANCES TO BUILT A SMALL SYSTEM USING ARDUINO....
Maybe you have certain ideas about what is a system and what is it to do?
By the way, THEY CAN ALL USE LOWER CASE AS WELL AS capitals.
sudhamohan:
hi sir tell me the differences between arduino and rasberri
I you are looking for the DIFFERENCE between a MICRCONTROLLER and a **MICROPROCESSOR ** then GOOGLE is your friend. the answers you see are much more detailed than we can put in one or two replies.
I just wanted to shout in technicolor.
Arduinos dont taste nice.
Maybe you have certain ideas about what is a system and what is it to do?
By the way, THEY CAN ALL USE LOWER CASE AS WELL AS capitals.
The original TRS-80 didn’t have lowercase!
There was a common mod to add the extra video RAM chip that implemented the high bit required to store lowercase characters - surprisingly the whole character set was available in the CG ROM, but the RAM was omitted for cost cutting I expect. (Back in the days when SRAM was a bit expensive!)
sudhamohan:
SO IS THERE ANY CHANCES TO BUILT A SMALL SYSTEM USING ARDUINO....
A system is any group of things working in concert towards a defined objective (as distinct from a bunch of stuff randomly cobbled together to do nothing in particular.) A system takes input/s, applies process/es and produces the required output/s.
So this trivial Arduino built in example, is a system.
e.g. an RC servo is a 'system'
Servo vs Servo Motor
lastchancename:
The original TRS-80 didn’t have lowercase!
There was a common mod to add the extra video RAM chip that implemented the high bit required to store lowercase characters - surprisingly the whole character set was available in the CG ROM, but the RAM was omitted for cost cutting I expect. (Back in the days when SRAM was a bit expensive!)
Difference between lower and upper case is bit 5, decimal 32. Tandy just did something lame and charge like it wasn't. The Trash-80 had shorter bus slots with closer than standard contact spacing -just- to force Trash users to buy Trash cards at far higher than standard prices.
And yet, they also made the 6809 powered Coco. Go figure.
Note that the TSR-80 did not have the hardware in the video circuit for lower case descenders so letters like the y and g stood up from the base. I remember doing that mod on the one I had.
Aaah yes, i do recall that! IIRC they used a simple 5x7 character cell without descenders as you said.
Memories (the mental type)!
It was quite simple to get them to descend, you just had to put a switch in the vertical time base counter and add two to it when you had one of those characters. I remember designing a circuit to do that. 