1000 Threads found on edaboard.com: Interfacing Optocoupler
please, can you help me?
To this day I use optocoupler PC817 to interfacing atmel or pic input with other devices - switches, relay contacts, etc.
Now I make redesign of pcb and need smaller size. pc817 is very big. I need some another circuit such as transistor, zener diodes etc. Connection will be same - switch NO NC, or contact of
Microcontrollers :: 08-01-2012 16:50 :: darksir :: Replies: 3 :: Views: 643
I do ZCD for AC Power lines.
I read application note of Microchip AN521. This application note explain for interfacing AC Power lines directely connect with Microchip I/O Pin.
My Problem is they told Phase connect with I/O pin of microchip but they cannot mention what about connection nutral.
Is it required to connection of Nutral .?
Microcontrollers :: 04-07-2005 04:16 :: rahul_sanghavi :: Replies: 1 :: Views: 1881
Your post says that this is a "Sensor interfacing circuit" but I actually don't know where is your sensor !!!
If I'm correct then I guess the sinusoidal function generator represents the sensor, that's why you mentioned it's voltage changes from 0.6V to 40V.
The only thing I couldn't figure is how may the sensor change with a frequency of 100Hz?
Hobby Circuits and Small Projects Problems :: 06-01-2006 03:23 :: Ahmed Ragab :: Replies: 9 :: Views: 1556
give me the idea about isolation circuit
i mean any means to isolate the main circuit while interfacing with power line
normally for power line communication to transmit/receive data
isolation circuit may be any form of transformer
Other Design :: 07-13-2006 04:02 :: Suraj Shrestha :: Replies: 2 :: Views: 1202
If you only want to connect the output to your microcontroller,
you do not need to worry about the current. The current specification
is for those designer who want to drive a load directly.
A pull down resistor will be more than enough to interface to your microcontroller.
Some standard ways of interfacing npn or pnp transistor.
Electronic Elementary Questions :: 12-05-2012 09:27 :: siongboon :: Replies: 1 :: Views: 517
i think that you may have a problem doing the interfacing without some kind of driver that you proably cant get source for
Professional Hardware and Electronics Design :: 02-24-2002 17:24 :: dlancia :: Replies: 2 :: Views: 1350
Anybody done interfacing with this part, any code examples, PC end and
USB2 device end.
PC Programming and Interfacing :: 01-17-2003 11:20 :: spit :: Replies: 0 :: Views: 1088
i need sum tutorials on LIN interfacing
PC Programming and Interfacing :: 02-02-2003 23:10 :: snsriram79 :: Replies: 8 :: Views: 2169
A very nice article that has been printed as pdf file and post by someone at MCU Fileman under path /ebook/Networking as Internet interfacing.pdf (1.16 Meg)
Probable this is the electronic version of the article published by Electronics World magazine may/june 2001.
You can find the article online at:
and (page 35
PC Programming and Interfacing :: 02-16-2003 02:44 :: silvio :: Replies: 0 :: Views: 1887
I have to interface SDRAM with a microcontroler.
Could someone explain me how SDRAM works in order to do the interfacing by myself.
See appl. note:
Microcontrollers :: 02-24-2003 09:05 :: Gomez :: Replies: 3 :: Views: 3247
how will write low level routine like lcd interfacing ,i/o control in wince application.
pls help me
what s/w they use in arm
PC Programming and Interfacing :: 03-11-2003 02:54 :: senthilkumar :: Replies: 0 :: Views: 899
Do any body have schematic and source code for interfacing Compact Flash card with 8051 microcontroller in true IDE mode, its to urgent for me ,
Please Pm me the Project schematic with source code.
Microcontrollers :: 04-01-2003 13:37 :: mitesh :: Replies: 2 :: Views: 2262
Programming and interfacing the 8051 Microcontroller (Paperback)
by Sencer Yeralan, Ashutosh Ahluwalia
Paperback: 328 pages
Publisher: Addison-Wesley Pub (Sd); 1st edition (January, 1995)
Microcontrollers :: 09-28-2005 11:24 :: mgajo :: Replies: 18 :: Views: 4230
I need information/schematics/details for interfacing a camera (say DC215) with a PC for periodic image capture and analysis. Any other camera or interface with a uC is OK.
Microcontrollers :: 07-30-2003 00:17 :: brmadhukar :: Replies: 1 :: Views: 1504
I have a circuit that contains 5v, 24v and 48VDC. I don't want to use optocoupler, because i want to keep the cost low and the circuit simple. What do you suggest me about this? Must i use or not? What problems may i encounter? Or what can i do instead of using opto to prevent problems?
Hobby Circuits and Small Projects Problems :: 09-10-2003 16:54 :: seyyah :: Replies: 5 :: Views: 2460
Can anyone point me to some info on interfacing to Nokia phone graphic LCD with micro-controller? Also, which phone LCD (3210, 3310, etc) are the easiest to interface to?
Microcontrollers :: 10-14-2003 06:12 :: abasir :: Replies: 34 :: Views: 50713
i have a LCD LM32019T from SHARP
it is 320x240 QVGA lcd
i got its interface on Hantronix web site and also from
but it is with SED1335 with 32K SRAM and SED interface in pixel is up to down 8 bits column by column
can i interface such type of LCDs with T6963 or toshiba e
Microcontrollers :: 10-22-2003 00:19 :: starlet :: Replies: 3 :: Views: 3716
i have two lcds containing Columns and rows driver ICS from toshiba and epson but i dont have connector status for what pin is what
i determined some pins but could not determine all. please help me to determine this and also tell me interfacing .
is it possible with T6963 because these have D0,D1 only or is it ok with SED1335?
Microcontrollers :: 10-26-2003 04:41 :: starlet :: Replies: 3 :: Views: 1874
I have the PCL for HPlaserJet 6P/6MP.
Could i use this for the Epson 80 column dot matrix interfacing using
the microcontroller ?
Could i get the necessary connection details with that of the 8051?
should i go by the parallel centronics way ?
karthik bala guru.
Microcontrollers :: 12-11-2003 03:50 :: linladen :: Replies: 1 :: Views: 1660
i'd like to interface to either an ethernet PCMCIA card (standard or wireless), using a standard ?controller (like M16C, or that kind), using an EPLD to do all the interfacing job.
Anybody having already done this,or any information on how to realise PCMCIA interface would help.
For another project, I would also like to make my own
PLD, SPLD, GAL, CPLD, FPGA Design :: 01-08-2004 12:38 :: narc_otic :: Replies: 9 :: Views: 1755
i want to interface 256x64 VFD graphic display (containing NEC ICs) with PIC/8051/AVR Controller but i dont have its pin connection and interfacing pattern. the specification of this display is
D65015 x 1
D16306 x 4
D16326 x 4
BR6265 x 1
CN1 is 30 Pins Connector
CN2 is 4 Pins Connector
Serial Number is FM256GX64A
Microcontrollers :: 01-11-2004 15:09 :: starlet :: Replies: 0 :: Views: 1534
I wrote this ke**il c c0de for interfacing 8o51 to @D7715 ,a 16 bit sigm@ delt@ c0nverter from anal0g devices.
But It works good for several hours and I can get data from ADC,But suddenly the ADC does not give correct data it only gives 0x0000 code on any analog input.
I do not know what is the problem ? Is it noise? PCB layout? Lost sequence
Microcontrollers :: 02-12-2004 04:17 :: 7rots51 :: Replies: 0 :: Views: 1778
Does anybody knows where can I find subroutines for interfacing a CompactFlash to a 89C51 microcontroller?
Microcontrollers :: 03-13-2004 07:29 :: hayder78 :: Replies: 0 :: Views: 873
I have two doubts regarding
1.interfacing external eeprom interfacing.
If ext.eeprom (for eg AT24c04) is directly connected to atmega16 with correct 10k pull up resistor, I am not getting the proper channel set for data flow and hence data transfer doesn't takes place but when i changed volatge from Vcc(5v) to 3.3v it worked
Microcontrollers :: 04-03-2004 04:49 :: benag6 :: Replies: 0 :: Views: 757
i'am basically confused in how to select the number of bits while interfacing microcontroller 8051 with memory. Can anyone help me in this regard.
Electronic Elementary Questions :: 05-05-2004 07:00 :: carrot :: Replies: 7 :: Views: 4429
Hi Can anyone help ME!!!
I am trying to Interface a FPGA to the LPT Port of my computer. I am planning to use the Data Register (Pins 2 - 9).
The interfacing circuitry I am using comprises of only a Buffer IC and a resistor. I am using the 74125 IC, (its a Tri state CMOS Quad Buffer, I have forced the control pins to 0, i.e. its active state).
PC Programming and Interfacing :: 05-28-2004 08:10 :: dynoboy :: Replies: 4 :: Views: 1117
I'm using MSP430F135 spi to interfacing CC1020 RF device. I wonder if some of you have experience with it?
Microcontrollers :: 06-04-2004 14:29 :: ltg :: Replies: 3 :: Views: 2139
Q1)which IC can be used as a BCD to HEX converter?
Q2)circuit diagram or methodology for interfacing 4 thumwheel switches &
4 digit 7 segment display?
Electronic Elementary Questions :: 06-08-2004 13:08 :: Bhavik Shah :: Replies: 1 :: Views: 4734
I need C code for interfacing DS1302 RTC with PIC16F877
Microcontrollers :: 06-22-2004 03:26 :: imp :: Replies: 15 :: Views: 28480
Does anyone can help me about interfacing multi 8052 via serial communication...
I know it's possible with mode 2/3 serial comm, but how about bus connection?
Did you mean any serial interface? Then just add RS485 converter and you will get RS-485 network. BTW, some uC have special mode of serial I/O port
Microcontrollers :: 07-28-2004 05:14 :: Ace-X :: Replies: 8 :: Views: 1114
i am planning to implement signature detection in security systems using 8051 microcontroller ( planning to make a dedicated device ). interfacing is the major problem ..any1 of u know how to interface 8051 and the display device ? also provide me with some interesting URL's related to my query..
god bless U all
PC Programming and Interfacing :: 08-28-2004 12:14 :: amer :: Replies: 1 :: Views: 1432
Hi all, I have a PICMASTER ICE that uses a ISA interfacing board. Is there anyway I can use it under serial or usb or printer port? Modern PC motherboards do not come with ISA anymore :(
thanks for any input!
Microcontrollers :: 08-28-2004 12:37 :: kl :: Replies: 0 :: Views: 724
I'm working on a Image Sensor project and now worrying about interfacing an ADC to the image sensor output. Now wot are the factors that I must think before selecting the converter like sampling rate, Dynamic Range(number of bits) ??? How will the input capacitance of the A/D Converter affect the selection ???
Also I wanted to know if
Analog IC Design and Layout :: 09-01-2004 13:12 :: circuit :: Replies: 2 :: Views: 1200
I am working on a project that will as part of its function control current to a 12v lightbulb that draws up to 2A (signal bulb from an American car).
I'm using an IFR540 to switch the bulb. I'm also using a 4n33 optocoupler to provide feedback to the system as to whether or not the bulb has actually turned on. To do this I want
Electronic Elementary Questions :: 09-05-2004 16:16 :: codesuidae :: Replies: 4 :: Views: 5177
i want to use HT1621 lcd driver to display 8 digit on LCD glass(custom LCD).
want to use 4 com signal.
I want to use C language for that.i am new to C language and lcddisplay .
i have gone thro'the datasheet.
pls can anyone help me with C CODE for interfacing HT1621 and Microcontroller(eg:ST).what are the steps to be followed.
Microcontrollers :: 09-06-2004 07:40 :: arup :: Replies: 0 :: Views: 888
I request documentations about bus interfacing.
5V TTL <=> 3.3V CMOS (5V tollerant)
5V TTL <=> 3.3V CMOS (not 5V tollerant)
PLD, SPLD, GAL, CPLD, FPGA Design :: 10-04-2004 11:26 :: picus :: Replies: 0 :: Views: 654
i THINK Stuart Ball has a book about "interfacing with the real world". Also embedded Hardware from Oreilly.
PC Programming and Interfacing :: 10-25-2004 02:43 :: mImoto :: Replies: 9 :: Views: 1590
i need documents about interfacing and interoperating FPGA+DSP!
xilinx's SPARTAN 3 + Ti's C54
can anybody give me a link ? i need it desperately !
Digital Signal Processing :: 11-02-2004 05:50 :: vaf20 :: Replies: 2 :: Views: 899
Hai any one knows about the factors to be considered for interfacing multiple clock domains in IC design.Could you provide some references...
ASIC Design Methodologies and Tools (Digital) :: 11-13-2004 05:39 :: gsperumal :: Replies: 5 :: Views: 831
i hope you are quiet well.
thank you very much for your attention.
i'm astudent of higher studies"computer engineering dept.,basrah
university,iraq" ,my research "design an industrial data logger
to pc"mean design simple circuit that control in any device by using
(PPI,A-TO-D,D-TO-A converter,isa card or pci,....
PC Programming and Interfacing :: 12-18-2004 08:08 :: sabah :: Replies: 0 :: Views: 674
interfacing between micro and ac 220 V you need optocoupler ang try controlling the motor using phase ship method
Microcontrollers :: 12-29-2004 01:25 :: e_eja :: Replies: 10 :: Views: 5550
Would it be possible to interface an ISA graphics card to a PIC? Should anyone know how or of any links, PLEASE post them! Can you believe I got this idea by reading through an article about interfacing an IDE HDD!
PC Programming and Interfacing :: 12-22-2004 19:33 :: Sputnik :: Replies: 1 :: Views: 1351
I was wondeeing if it is possible to hookup custom made devices like process displays or weigh scals to the serial port of PLCs. I am interested in interfacing to Siemens PLCs.
Robotics and Automatics Forum :: 01-04-2005 11:12 :: techie :: Replies: 3 :: Views: 1969
Could anyone tell me how to interfacing humidity sensor RHK1AN, so the output is a dc voltage from 0 - 5VDC. the spec is:
- resistive sensor
- 1Vpp AC source
and anybody got the datasheet???mine is partial, not complete..... :(
Try this just two IC used virtual groud as shown in power jpg
note that the voltage are ac vo
Hobby Circuits and Small Projects Problems :: 01-15-2005 05:07 :: Fragrance :: Replies: 8 :: Views: 5568
I need a optocoupler which can switch on/off my 12volt/100ohm relay via a microcontroller? MCT2E seems to handles too much low current than this, so which optocoupler can handle that much current (120mA)!
Microcontrollers :: 01-14-2005 02:17 :: Jack// ani :: Replies: 8 :: Views: 2512
Where can i find a HI-TECH PICC driver for interfacing a PIC16F877 to a MAX7219 LED driver IC
Microcontrollers :: 01-16-2005 16:31 :: The Puma :: Replies: 0 :: Views: 840
Anyone have good reference link and report/thesis/document/project for PCMCIA interfacing with microcontroller?
Can post at here. I want start it from scratch.
Thanks in advance.
Microcontrollers :: 01-19-2005 12:20 :: feiutm9898 :: Replies: 1 :: Views: 1296
Hope this can help, it also has sch+ code for LCD interfacing
Added after 4 minutes:
Here is the link for the source code of LCD interfacing with 8051 core MCUs
Microcontrollers :: 01-20-2005 14:34 :: gamegurus :: Replies: 3 :: Views: 1402
plz tell me and give links and codes for interfacing parallel port in JAVA
I am using Java1.4.0
Editior is JCreatorLE
PC Programming and Interfacing :: 01-21-2005 09:24 :: yogi :: Replies: 1 :: Views: 786
Search Code Project for interfacing with Parallel Port Article
PC Programming and Interfacing :: 01-31-2005 15:55 :: gamegurus :: Replies: 3 :: Views: 698