Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
Hello everyone.
So I'm trying to make this project for controlling a parking (there's a narrow L shaped ramp where entering and exiting vehicles can't enter and exit at the same time and don't have good visual, the idea is to light up stop and free to go LEDs to let people know when a vehicle...
for what it's worth, i found what cause the problem. apparently the compiled hex was too big for the microcontroller. i couldn't manage to make it work until i reduced the program size to < 2k. i mean ((Program Size: data=81.0 xdata=0 code=1930))
I thought it might help some1 someday.
cheers.
ty Easyrider83. I tried to integrate ur code, but i couldn't. mostly due to my lack of C knowledge.
I worked on my code and some code i found here, and I wrote this:
#include <reg51.h>
#include <INTRINS.h>
unsigned char readdata[2];
sbit DQ=P2^0;
sbit MM=P1^0;
sbit NN=P1^1;
unsigned char...
thank you so much Easyrider83, much appreciated.
a few questions;
Is this code compatible with DS18B20? because in the attachment i found files named DS1822. donno if it's the same.
Is this compatible with 8051? because i looked a little and i found too many GPIO declarations which looked like...
I got a DS18B20 and changed the code a little, I used maxim instructions and it's working now.
However, It's for using single sensor. What if I want to use multiple sensors? Maxim website doesn't provide the code to use multiple sensors. Is there by any chance some code for multiple DS18B20...
I just took a very closer look at the sensor, the text on it says "ds1820" and not ds18b20 (I've ordered ds18b20 though). Is that something that needs to be noticed?
Hello everyone.
I'm trying to make a 8051 (AT89C51) to read temperature from DS18B20 and send it to a PC through the serial port (FT232).
I'm almost done, have the code alraedy, and it actually works in Proteus simulation.
this is my code:
# include<reg51.h>
sbit dq = P3^5; // connect with...
Thanks Brian.
Actually I had that thought too, especially when I found this: https://www.rakeshmondal.info/pic18f4550-project-tutorial-part-1-USB
The problems are 1-the program costs something like 30$ around here and 2- if it's too simple chances are the teacher won't give it any credit as a...
thanks again guys.
The reason I was bringing up 8051 was that already have a USB 8051 programmer with a 40-pin zif socket. I also have the mC itslef which is ATMEL 89C51. If it's very important to switch to whole another mC type, then I guess I should go for PIC ones, because the built-in USB...
Thank you guys.
so it's going to be something like this: right?
btw I'd prefer to build the TTL converter on my own, since I'm supposed to learn something here :-D i couldn't find DIP chips of that kind anywhere around here tho. so i guess I'll have no other option but using a ready module
Hello everyone o/
I'm new to microcontrollers, and the thing I want to do is to interface a 8051 with PC via USB. I mean like having a couple of LEDs connected to the mC and switching them on and off from PC...
I've searched aaaaalll over the internet! I really did, and I found many many...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
