frequency 89c2051 - results edaboard.com

simple radio control? need solution to problem

i want to control a device by radio, three states: equivalent to left (01), right (10) and do nothing (00). range about 3 metres in air but through a 10mm solid, so cant use ir. security is not an issue, but interference is - i dont want it activated...
Digital communication :: 25 Jan 2009 20:40 :: probert :: Replies: 3 :: Views: 468

how to controle some relays through rf.

hi,dear i want to make a telemetry project. i want some ideas that how to make a relay on off which is connected to a 89c51 controller with a receiver. i want to sent some sort of signal through my transmitter to the receiver and the controller switc...
Microcontrollers :: 07 Jan 2009 16:45 :: ctownsend :: Replies: 6 :: Views: 381

problem with keil software

hai i am using 89c2051 for a project.i started writing codes in c but when i checked the hex file i found the first instruction is to jump location 800h.as this ic having only 2k my program will not work .how i can solve it plz help meethanks:cry::...
Microcontrollers :: 23 Dec 2007 14:49 :: Roma_te :: Replies: 13 :: Views: 459

interfacing 89c2051

hai, i have designed a simple circuit to display some character in the p.c.that circuit contains one max232 circuit and basic working circuit fo 89c2051(contains 11.0592 crystal with two 33pf and 8,3k ohms and 10µf for reset pin). the program i...
Professional Hardware and Electronics Design :: 04 Dec 2007 5:29 :: Livingston :: Replies: 7 :: Views: 831

89c2051 help frequency divider

i must make a frequency divider i meen if the in frequency is 3hz the out frequency must be 2 hz the amplitude of in frequency is 8 hz - 130 hzcan some implement in c thanks...
Microcontrollers :: 23 Oct 2007 13:01 :: syrax :: Replies: 2 :: Views: 126

ir switch using 89c2051

i want to transmitt a ir code and recieve it through the same microcontroller.just buy sending and recievin a simple pulse is not enough the switch get triggered buy the other remotes.can we do transmitting of some ir codes and verify the same using ...
Hobby Circuits and Small Projects Problems :: 30 May 2006 9:49 :: nikhilele :: Replies: 2 :: Views: 414

frequency meter function control?

hi,i have a circuit for i/n/t/e/r/s/i/l 7216a frequency counter. however the gate and range selection is done via rotary switches. i need a circuit to do all this switching digitally with two momentry switches with leds indication of gate time (0.1s,...
Hobby Circuits and Small Projects Problems :: 24 Dec 2005 18:34 :: hadihf :: Replies: 5 :: Views: 567

infra-red remote control ...

hi all ;i have got a strange problem on infra-red remote control , my problem is short range af transmitter ,i have desigend a receiver and transmitter ( infra-red ) , using 2 89c2051 , one as sender and one as receiver .i connected a led to the outp...
Microcontrollers :: 02 Dec 2005 5:02 :: afti_khan :: Replies: 5 :: Views: 786

:: :: :: Replies: :: Views:

40watt tube ballast with 89c2051

hi, can u help me by giving guidence in making good and lasting 40watt tube ballast. can we use 89c2051 as a heart of it for more accurate operation....
Microcontrollers :: 04 May 2005 0:55 :: xjackal :: Replies: 4 :: Views: 465

real time clock vs. pic timer1 module

hi.in clock application (using pic mcu+lcd) what we should use to achieve precision on time...is timer1 enough(with 32.768 khz osc) or real time ic necessary???is there any difference about precision???...
Microcontrollers :: 09 Dec 2004 5:06 :: CMOS :: Replies: 10 :: Views: 3225

Page 1 of 1	All times are GMT + 1 Hour
Ostatnio szukano: paralell triac pwm control converter thin film spie paper fundamentals of power electronics converter 12v to ac 220v aptitude cadence fedora sony str dspf spef

Abuse || Administrator || Moderators || Support us || sitemap
While the administrators and moderators of EDABoard forum will pursue any attempt to remove or edit any generally objectionable material as quickly as possible, it is impossible to review every message. Therefore you acknowledge that all publications posted in this forums express the views and opinions of the author and not the administrators, moderators or webmaster (except for publications posted by themself) and hence will not be held liable. This site and the owner's are in no way legaly responsible for any of the uploaded files, or responsible in any way for any damage legal or electronic that is the result of the use of the uploaded files. Only demo & share/free ware software stored here. EDAboard is in NO WAY legaly responsible for any "linked to" or "mentioned files" that are in anyway altered from the orginal file specifications. EDAboard.com does not deliver any information about our users. EDAboard.com will, if required (Police, FBI, CBS asking), provide complete information (IP numbers, times, etc.) about any user who uploads illegal files or posted illegal content on public forum. User takes complete legal responsibility for all files and content uploaded or posted on forum! Illegal files will be removed immetiately after notice. Furthermore we will add them to our file-filter and notice moderators, so they can't be uploaded again. EDAboard.com is against software piracy or any kind of copyright infringement. Unfortunately some users don't respect our rules. We apologize for any kind of misuse of our service and promise to do our best to find and terminate abusive files. Just write an e-mail to administrator and give the exact links to the files