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interfacing pic16f877a to pc using max232

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shivachellam

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max232 pic16f877a

hi

now i want make the connection with pc from pic16f877a if any one have circuit connection means plz give :|

thank u
 

max232

Here you have the schematic (I made it with KiCad and Gimp - Free Software).

Info:
1) MAX232 datasheet: https://focus.ti.com/lit/ds/symlink/max232.pdf
2) PIC16F877 datasheet: https://ww1.microchip.com/downloads/en/DeviceDoc/30292c.pdf
3) RS232 pinout: https://www.lammertbies.nl/comm/cable/RS-232.html

Some comments:
1) The capacitor C3 in the pin 2 of the MAX232, can go to VCC or GND.
2) Verify with your MAX specific device (I mean the datasheet) the pinout, just to check. I've used the MAX232 from TI.
3) Check the MAX232 datasheet to see wich way the capacitors must be conected if you use polarized.

Other sites (google "TTL to RS232 MAX232 converter schematic")
1) With MAX233: **broken link removed**
2) With MAX232: https://sodoityourself.com/max232-serial-level-converter/

I hope this helps you.
Regards, Diego.
 
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    noel_t

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pic16f877 max232

thank u really its very useful to me.
 

pic16f877a max232

so, pin 5 from the rs-232 doesn't have to be connected to something?
 

max232 pic 16f877a

where can I get this KiCad and Gimp software? can anyone give me the download website. I searched it on Internet, but I am not sure which one should be download. Too many CAD.......
 
pic16f877 to pc

Kicad:
Download it **broken link removed**. If you use window$ download this KiCad-2009-02-16-final-WinXP_autoinstall.zip or this KiCad-2009-02-16-final-WinXP_full_with_components_doc_autoinstall.zip. (You can download it for Linux too)

There is a lot of libraries here.
If you want to make your own 3d models of some components, you must download wings3d here.

Gimp:
Download it here.

Regards.
 

using max232

Do I need to configure in my computer for interfacing with MAX232?
 

max232 and pic16f877a

xylynn said:
Do I need to configure in my computer for interfacing with MAX232?
Click to expand...
You must ensure that the com port of your PC, has the same settings that the UART on the PIC. For example 8 bits, none parity, one stop bit (aka 8N1).
I don't remember about the flow control (XON/XOFF or software) but try both.

Regards.
 

max232 pic16f877

just want to know how you got the values of the capacitors connected to max232?

is there any computations you applied in getting the values for capacitors?
 

pic 16f877 max232

Hello,

You can use the max 233, it has the capacitor built in, just make the conections. You can use the free samples of Maxim.

Just an Sugestion

Regards
 

rs232 pic16f877a max232

does anyone knows how to compute for the values of capacitors used in the max 232?
 

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