1000 Threads found on edaboard.com: Connecting max232
hello friend i want use atmega32, to control a stepper motor interfaced using uln2003 using sms from gsm modem interfaced using max232,i am designing a circuit diagram but my problem is the values capacitor,resistors, crystal oscillator i should use like in connecting max232 to atmega32,power supply to controller,uln2003 to stepper motor (...)
Microcontrollers :: 02-22-2012 22:44 :: daleth :: Replies: 2 :: Views: 715
Has anyone tried connecting a max232 and PL2302 together ?
If yes, could you provide schematics.
PC Programming and Interfacing :: 11-10-2006 18:10 :: circuitmod :: Replies: 0 :: Views: 599
i have prolem connecting PIC JDM to a UART ( USB to UART ) i used cp2101 chip for the usb to uart conversion. Hav any one done it ? plz let me kno ....
Microcontrollers :: 04-02-2005 02:12 :: ful babu :: Replies: 2 :: Views: 637
i m doing my final year project that includes autoically sending sms from mobile phone. i m connecting 8051 with T630 using Tx, Rx and Gnd of 8051. i m using max232 IC in between microcontroller and mobile phone. i made assembly code to send the AT commands. but i havent got any response from the mobile. i want to know that whats wrong with th
Microcontrollers :: 02-24-2007 06:56 :: sagi4u84 :: Replies: 2 :: Views: 1076
connecting 5V max232device input to the 3,3 V output from the Spartan can be done directly with out any problem (for security you can add serial resistor about 100 Ohm)
connecting 5V max232 output to the 3,3V input of the Spartan requires small level shifting (Sparatn is not 5V tolerant). Simple serial resistor at the input (...)
PLD, SPLD, GAL, CPLD, FPGA Design :: 05-13-2007 07:19 :: bis_ :: Replies: 2 :: Views: 1454
Are you removing a wire while data is flowing and connecting it again? You can´t do that because you´ll loose sinchronism (loose the start bit at the beginning of each byte).
Professional Hardware and Electronics Design :: 04-14-2009 04:01 :: pauloynski :: Replies: 10 :: Views: 2781
Hi, I m connecting SIM300 Module with Hyper terminal using max232 circuitry. But when i open the terminal, it shows random ASCII characters before pressing any key as well as after pressing any key. Can anyone please help me in this ?
Hobby Circuits and Small Projects Problems :: 04-16-2011 13:48 :: arslanshahid :: Replies: 6 :: Views: 1920
The touchscreen manual shows connecting to PLC. I sure, it can connect to PIC using Modbus Protocol coding.
Microcontrollers :: 05-04-2011 23:44 :: engshahrul :: Replies: 5 :: Views: 1127
Hello Every Body:
I am interfacing serially ATMEGA162 with hyperterminal. I am just sending a string to hyperterminal but string is not being received.
I want to trouble shoot the problem. I tested my code on Proteus software, the code is working well on software.
secondly i have tested the serial port by making connecting Tx n Rx together of D
Hobby Circuits and Small Projects Problems :: 10-23-2011 17:49 :: assadmahmood :: Replies: 2 :: Views: 1132
thanks :-D.i did that loop test and its ok. i got my max232 connection are ok.but when i connecting xbee i can't my xbee bad?
Microcontrollers :: 11-18-2011 03:47 :: shahid_c :: Replies: 6 :: Views: 1421
Sorry for such a newbie question but i can't figure it out myself. I use four RS232 lines, RX, TX, DTR and DSR. My PIC uC has 2 of them implemented in hardware - RX and TX but DTR and DSR i have to use with normal GPIO ports. I was alway connecting outputs from max232 (now HIN232 ) directly to uC without any current limiting resistors but now i'm h
Hobby Circuits and Small Projects Problems :: 09-05-2012 21:58 :: elPresidente :: Replies: 1 :: Views: 665
The most probable cause is that you are not cross connecting the Tx/Rx lines and you have two outputs connected together.
Is it connected
Microcontrollers :: 02-27-2014 10:38 :: alexan_e :: Replies: 4 :: Views: 422
You implementation is correct. You need max232 for connecting pic to pc.
Google is your best friend. Search this forum first. You can find lot of information here.
Microcontrollers :: 02-28-2014 11:14 :: nandhu015 :: Replies: 6 :: Views: 555
Thank you for your reply!
The schematic shows that the connecting the 4052 on the TTL side of the max232!!!
TXD3 from 4052 goes to T1N!!!
Hobby Circuits and Small Projects Problems :: 06-07-2014 18:34 :: m_jabarouti :: Replies: 7 :: Views: 1012
Does anyone got experience in connecting 2 pieces of a 4x4 Matrix keyboard in parallel
without any other interface? Is there a limitation in the distances of the cables?
Any information concerning this matters is very welcome.
I want to connect two of these to an alarm system.
Professional Hardware and Electronics Design :: 05-06-2002 03:40 :: Rolec :: Replies: 2 :: Views: 1459
I would like to build a project for my pc with a member of pic series.But i dont know how to protect its software? Is there a way to protect it from copying? For example a fuse? By the way i'd like to ask if i can change some datas in Pic16f84 while running? I'd like to use there a sample schematic, project or like this? Well
PC Programming and Interfacing :: 08-13-2002 17:42 :: ergen :: Replies: 7 :: Views: 3730
I have the flukeview demo and fluke187 tester.
I don't succeed in connecting the PC with the tester.
Can a whatever infrared port be used?
Or does it serve the special cable?
Professional Hardware and Electronics Design :: 03-06-2003 05:09 :: 002 :: Replies: 1 :: Views: 1329
is there someone who has a project in KEIL connecting a HARDDRIVE to an 8051. I'm not a pro and to programm on my own is an too hard job.
Hope someone can help me.
Send it to goofers at lycos dot nl.
Microcontrollers :: 06-03-2003 18:35 :: goofers1 :: Replies: 3 :: Views: 3218
hi. is it ok if i will use 10uF/6.3v and 1uF/6.3v 2125SMD capacitors instead of 1uF/16v and 10uF/16v electrolytic capacitors on a max232 ic for data cable use?
Hobby Circuits and Small Projects Problems :: 11-19-2003 11:34 :: iDk :: Replies: 13 :: Views: 16783
Hi guys, its my first post here.
i tried making a serial cable for my modem with a max232 chip and 4 1uf 63v caps. i used this dont coincidence i short circuit some solderings and got a positive reaction, seems like somethings missing on this plan?!
Hobby Circuits and Small Projects Problems :: 12-19-2003 03:36 :: Phil2003 :: Replies: 20 :: Views: 17643
I have an undergraduate project about connecting two computer wireless by using FSK transceiver full or half duplex, the data come from serial port with data rate 120kbps ,so I need your help please. If you have anything about this (complete design or IC?s ) send it to me quickly.
Sorry for wasting your time
Professional Hardware and Electronics Design :: 03-23-2004 15:10 :: shadixp :: Replies: 1 :: Views: 1072
Fast GUI-based EDA tool for connecting HDL modules.
Topweaver is a fast GUI-based EDA tool for connecting HDL modules, also called structural integration. You can use it in ASIC, FPGA or CPLD designs.
1. -> t
Software Links :: 04-21-2004 18:15 :: jimjim2k :: Replies: 0 :: Views: 616
I would really like to see the initialisation code :-)
Did you double check that your connected display does not have contact with a trace of reset or oscillator because i can not imagine a situation where connecting a display to the pic makes the whole thing stop working at all.
connecting CS to RA4 is not a good idea as RA4 is an open colle
Microcontrollers :: 05-10-2004 09:01 :: C-Man :: Replies: 11 :: Views: 1814
I need a Schematic for PIC16C71 connected to max232 ! I mean i also need the full schematic of the PIC 16C71 itself and then the connection to the MAX 232 ! Can anyone help me ? Thx ! :wink:
Hobby Circuits and Small Projects Problems :: 09-10-2004 10:42 :: kseng2002 :: Replies: 3 :: Views: 1476
DO we need to use max232 or equivalent on the 18F452 to use the RS232?
Microcontrollers :: 09-27-2004 23:04 :: bimbla :: Replies: 1 :: Views: 1536
As above! I need to convert the FT232BM chip into RS232 so that I can get the exact RS232 signals from it using the max232 chip. May I know how should I connect these 2 chips? The datasheet for FT232BM uses a different chip!
In fact, I have built a JDM programmer like this:
But I want to connect it to th
Microcontrollers :: 09-28-2004 02:32 :: ericmar :: Replies: 5 :: Views: 5985
May I know if I need to invert the signals coming from the max232 chip? Does it convert -12V -> +5V, +12V -> 0V and vice versa? (ie. +5V -> -12V and 0V -> +12V)
Thanks a lot!
Electronic Elementary Questions :: 09-28-2004 08:24 :: ericmar :: Replies: 8 :: Views: 2650
I am trying to make a HC908GP32 to communicate with LABView through COM2. I use the max232 as an interface but although rs232 transmmits the go word for the uC to initiate the convertion and transmmition of my data, this does not happens.
I noticed that the receiving pin of the uC ( that is RxD) is in HI status when idle ( this normal
Microcontrollers :: 10-14-2004 12:18 :: dkace :: Replies: 3 :: Views: 1258
I order a sample max232 chip from MAXIM for school project and i wrote some aplication for comunication with 16f84 via COM port.The problem is that i need to recive data from pic at least a one weak without a it posible for samples to work one weak without a break down.
Hobby Circuits and Small Projects Problems :: 11-13-2004 12:19 :: mmrkii :: Replies: 9 :: Views: 1739
Has anybody tried connecting Nokia 6610 or any other handset to PC using DKU-5 cable ?
After installing drivers and plugging the cable to handset, windows 2000 SP4 detects new hardware as a 'USB device' with a yellow exclamation mark.
Uninstalling and reinstalling doesn't help either.
No phone is detected in the Nokia PC suite program.
Service Manuals, Requests, Repair Tips :: 01-05-2005 05:01 :: coolchip :: Replies: 3 :: Views: 981
I have designed a simple detector circuit as shown in the diagram attached, baiscally i would know what is the purpose of connecting an inductor L to ground prior to diode because initially i do away with the inductor and connect the antenna directly to the diode however the detector does not work with out the added inductor to ground. Thu
RF, Microwave, Antennas and Optics :: 02-15-2005 22:29 :: magneto_cool :: Replies: 3 :: Views: 2125
hi anybody could help me what is the different between rs232 max232 and max3232. i want to make a data cable DLR-3P to connect a nokia phone to the pc but the discription for the DLR-3p is using max3232, unfortunately i can't find a max3232 in my place. so can i replace it with a max 232
appreciate for suggestion
Microcontrollers :: 02-17-2005 18:59 :: jojokatada :: Replies: 12 :: Views: 16177
can anynody send me some linke or pdf file about connecting 8051 to Graphical LCD? in fact i want assembly program for do this.
Microcontrollers :: 03-12-2005 10:44 :: Navid T :: Replies: 3 :: Views: 4894
i have a problem in connecting filler cell ports with pad cell seems they dont get connected.the asic tool i use is is it possible to stitch filler cell ports with pad cell ports similar to stitching pad cells with external outputs?
ASIC Design Methodologies and Tools (Digital) :: 03-13-2005 12:13 :: viswa :: Replies: 0 :: Views: 1029
Where can I find PIC18F2550 USB connecting Schematics?
Or does it connect directly D+/D-/GND to USB PORT?
BTW: I want to connect it to a PC with a Delphi program. How do I do to send/receive data from/to PC/Delphi/PIC18F2550, in a easy way?
Microcontrollers :: 04-01-2005 08:29 :: JulioSilva :: Replies: 2 :: Views: 2606
any guidance on how to design the connecting pad between component.
1)for eg, if i have resistor in series with a microstrip opencircuit stub, do i still need a connecting pad in between?
2)For discrete component how to design the connecting pad.
RF, Microwave, Antennas and Optics :: 04-15-2005 13:37 :: spide :: Replies: 2 :: Views: 648
If I want to measure the bandgap voltage is it necessary to build a buffer before connecting it to a pad? Seems like I don't need one since it is just a DC value.
If it drive capacitive load, then no need. If drive resistive load, then it need a buffer.
Analog IC Design and Layout :: 05-02-2005 02:57 :: surianova :: Replies: 4 :: Views: 701
max data data sheet
and this garbage LCD from Matrix Orbital
Matrix Orbital and their infinite wisdom don't even
Microcontrollers :: 04-30-2005 10:18 :: Adamant :: Replies: 4 :: Views: 4141
I am interfacing a vending-machine control board with a GSM module (a Sony-Ericsson GT47/48). The serial interfaces are RS232 (for the control-board) and TTL (for the module)
I have a max232 in the middle which works perfectly when tested between a PC and the module BUT it works intermittenly with the control-board, meannig that some time
Professional Hardware and Electronics Design :: 05-30-2005 22:16 :: seymour :: Replies: 1 :: Views: 1305
I am trying to build universal flash cable for mobile phone through RS232 port, i found LG GD75323D in an old modem can i used it instead of max232 and also is it somewhat same as max232, please help me.
Hobby Circuits and Small Projects Problems :: 07-04-2005 03:53 :: lrpa :: Replies: 6 :: Views: 3063
I need some help on my project. I need to programme the max232 chip to communicate with my PIC 18F452 (so i can send and receive data from PIC 18F452 to PC and vice versa through the serial Port, DB9) in C language by using CC compiler, Simulink and MPlab but i am novice to C language. I can not figure out how to write the codes in C language
Software Problems, Hints and Reviews :: 07-08-2005 06:53 :: Labiran Simeon Olusola :: Replies: 0 :: Views: 1381
Hi, I have quetions about serial communication on PIC16F84A microcontroller. Is the PIC16F84A not need the max232 level converter? And how the configuration of that connection? I want the example of the schematic.
Hobby Circuits and Small Projects Problems :: 07-08-2005 11:59 :: bangunprayogi :: Replies: 3 :: Views: 4339
When i try to connect the power pad pin to the core power ring in SOC encounter, i found that there is no connection generated. The pin assignment of the power pad is as follow (grap from IO LEF file):
pin A (for connecting to core power ring)
pin vdd3o!, vdd3r1!, vdd3r2! (for connecting pad ring)
pin gnd3o! gnd3r! (for (...)
ASIC Design Methodologies and Tools (Digital) :: 07-20-2005 22:46 :: market :: Replies: 0 :: Views: 1562
Where can I find a programmer for PIC using only max232 and serial port, instead of JDM silly circuit. Also software is needed.
Microcontrollers :: 07-22-2005 17:43 :: metal :: Replies: 7 :: Views: 11054
I have build ICD2 from diagrams by Lothar Stolz. Some of people wrote at his website it is working, but some of them stucked in same problem like me. MPLAB connects with ICD2 but cant communicate. I have build two version, have used A and nonA microcontroler with diffrent bootloaders from diffrent sources. I have changed few max232, uses 20MHz gen
Microcontrollers :: 08-03-2005 15:15 :: elektryk :: Replies: 7 :: Views: 8312
What is the best way of connecting my Nokia 3310 LCD? It seems so small to fix with wires. I welcome to hear your suggestion
Electronic Elementary Questions :: 08-06-2005 12:00 :: Maverickmax :: Replies: 1 :: Views: 1004
Can I connect Coaxial cable to a DC output pin (for example, RSSI output pin of a Receiver which indicates the received power accepted in the receiver and measured in voltages) in a noisy enviroment to the central pin of the cable and without connecting the grounds?
1. Receiver RSSI output pin is 1.2V
2. Connect the
RF, Microwave, Antennas and Optics :: 08-28-2005 05:09 :: ericz :: Replies: 1 :: Views: 1022
Hi, I need to connecto to a TCP port on a remote server using the 89S8252 microcontroller and a SAGEM mod170 GSM module, since the module doesn't have a tcp/ip stack i'm stuck on implementing one by software.
Do all uIP implementations already supportt PPP ?
Can someone tell me where to find C51 code examples on connecting to a port and send
PC Programming and Interfacing :: 09-07-2005 12:38 :: NunoAs :: Replies: 1 :: Views: 897
Regulars here could have been watching my path in designing my very first RF link. It took quite a long time (a few months, but doing some other stuff meanwhile), and I guess this is the final doubt.
So, the RF module is on the PCB. The external antenna connector is mounted on the chassis, and I want to connect the connector and the RF
RF, Microwave, Antennas and Optics :: 09-25-2005 12:09 :: rajo :: Replies: 9 :: Views: 2258
can any1 show me a sample circuit for connecting pic16f877a with max232 chip. The hardware i'm doing is only going to receive and transmit data between the PIC based hardware n PC.
Hobby Circuits and Small Projects Problems :: 10-04-2005 13:27 :: ganavel9783 :: Replies: 3 :: Views: 1937