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.
hi, all i do experiment in lab for inverting op-amp i use 741 and ETS-7000A kit
my connection in attachment image is my connection correct?
when i measure the out put voltage is -12.9v and remain at this value even if i change the input voltage is my connection wrong pls help ?
thanks in...
hi, all i want to run my stepper motor(unipolar,1.8 deg) using a four sequence with full step mode as table below:
since i use stepper motor with step angle=1.8 the if i want at an angle of 18 deg then i need to repeat the sequence in figure above
for x times , x=18/(4*1.8)= 2.5 time is 2.5...
hi, all i designed a two degree of freedom robotic arm by using 2 stepper motors: unipolar, 1.8 degree for elbow joint i used worm gear, and a timing belt
i test my stepper motors with out loads work good if i want rotate my stepper motor at angle of 90 deg, i need 50 pulses (i use 4 sequence...
hi,all i want simulation program in proteuos for 8051 and unipolar stepper motor can i do calculations and drawing waveform of pulses ? are there are any programs deal with stepper motor
thanks in advance
hi,all i have unipolar stepper motor with step angle 1.8 i use the following code to rotate it in full step mode (4 sequence)
mov a,#66h
mov dptr,#portc
mov r7,#4h
N91:mov r6,#29h
begin3:movx @dptr,a
rr a
acall delay2
djnz r6,begin3
djnz r7,N91
where delay2 represent delay=23.911ms how i can...
hi, all when i send 11001100 from matlab to my 8051 kit using usb to rs232 i receive 11100000 my is the error in my code or in max232 connections my code for recieving below:
org 2000h
mov tmod,#20h
mov th1,#0fah
mov scon,#50h
setb tr1
here:jnb ri,here
mov a,sbuf
mov p1,a
clr ri
sjmp here
end...
hi,all what is a duration time of delay and delay2 below:
if oscilator frequency is :22.118MHZ of my 8051 kit
delay:mov r5,#0ffh
h1:mov r3,#0fh
h2:djnz r3,h2
djnz r5,h1
ret
delay2:mov r5,#0ffh
h11:mov r3,#55h
h22:djnz r3,h22
djnz r5,h11
ret
thanks in advance
hi,all can any one give me site for book or tutorial of how to calculate number of pulses and duration of delay to rotate stepper motor in particular angles
hi,all i have unipolar stepper motor ,1.8 degree/step i dont have any data sheet i take it from a dot matrix printer how i can identify type (variable relctance or permenant magnet)
hi,all i have a problem in serial communication my code below:
Matrix1=[1 2 3 4 5 6 7 8 9 ];
s=serial('com3','baudrate',9600);
set(s,'flowcontrol','none');
set(s,'parity','none');
set(s,'databit',8);
set(s,'stopbit',1);
fopen(s)
for i=1:length(Matrix1)
A=Matrix1(i) ;
fwrite(s,A,'int8')
pause(2)...
hi,all i want to ask if i use usb to rs232 adapter will change the bits pattern of my binary data when i send binary byte from matlab via usb to rs232 adapter im try and try all formats of fwrite function to send binary data from matlab and display it to 8051 leds .i notice when i seend...
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.
