there is king little project i have to done in 2 weeks but and i dont know anything about elektronics.

first thing i have to put all elecronics devices on the board.
i have UMR245R and it has 24 leg and 8 leds and 8 registors.
so which legs goes to resistors or led i had no idea .
anybody help me about tht here .

 

How do you come to be responsible for something you know nothing of?

You need the data sheet - http://www.ftdichip.com/Support/Documents/DataSheets/Modules/DS_UM245R.pdf

Sounds like you need to learn a lot in a hurry.

 

How do you come to be responsible for something you know nothing of?.

pls dont ask me that

i have to make little s/w for circuit also.

 

Anyone else having a hard time understanding whats going on in this thread or did I miss something?

 

pls dont ask me that

Let me ask the question differently: What is the context of this, the application? Your request makes no sense without that information. You might be building a device to slice apples, and this would be a poor start. Anyone that might help you needs to know. What ARE you good at, that is relevant to this project?

 

Gazing into my crystal ball here...

The OP has an FTDI UM245R USB-Parallel port development module. He wants to connect 8 LEDs to the 8 data bits and drive it from a PC.

The data sheet for the module is at http://www.ftdichip.com/Support/Documents/DataSheets/Modules/DS_UM245R.pdf

Look at section 7.2 for the basic connections. Pick resistors for the LEDs to limit the current to under 100mA total, under 15mA per LED.

/mike

 

Hi Guys

The UM245R can be used to light up LED's or Opto devices.

Simply add the circuit to RXF# and RD# and send a charator using Hyperterminal or from a program to the COM port

VCC ----------------
RXF# ---10K------BC557
100K and 0.1uF in parallel
RD# ----------------
1K
GND ----------------

I used 1K resistors for each output bit, this gave me 3.5mA for the LED

Hope this helps

 

Geez, how did you manage to get past the "best before date"? This thread is more than a year old.