rs232 converter help

[josephakash07]

I have a 89 seris RS232 programmer but my computer has no RS232 connector so where i have to connect rs232 cable Is any converter for RS232 to usb please post the link
Sir what is the difference between RS232 to usb converter and usb to RS232 converter

 

[tpetar]

USB to Serial RS232 adapter schematic circuit
https://www.electroniq.net/other-projects/usb-serial-rs232-adapter-schematic-circuit.html

Just google, you can find lots of designs.

 

[josephakash07]

is USB to RS232 converter and RS232 Converter are same or not

 

[tpetar]

What you need? You have RS232 device and want to connect that device to PC without RS232 port, PC have only USB?

If yes, you can use provided or similar circuit.



If PC have RS232 port and you want to make RS232 to USB you need different circuit. Additional to this USB ports can be implemented with installation of PCI-PCIe cards with USB ports.


RS232 to USB circuit

 

[josephakash07]

SIr my computer has usb port not RS232 port

 

[tpetar]

SIr my computer has usb port not RS232 port

Ok, where you stuck then?

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Here is one more example of FT232R IC :

http://electronics-diy.com/FT232RL_USB_to_Serial_Adapter_for_PIC_AVR_ATMEGA_ARDUINO_MCUs.php

 

[jpsganesh]

better to buy a readymade USB to serial converter. it'll b cheap and compact.

 

[tpetar]

better to buy a readymade USB to serial converter. it'll b cheap and compact.

In DIY project you can add and implement RS232 to USB support in device itself.

 

[josephakash07]

Re: usb to ttl help

can anyone please send usb to ttl makeing cricuit diagram