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Topic: Wiring SparkFun's latest "Basic FTDI Breakout board" to a breadboard (Read 3 times) previous topic - next topic

BlueJakester

Jul 15, 2012, 10:57 pm Last Edit: Jul 15, 2012, 11:07 pm by BlueJakester Reason: 1
I'm contemplating buying one of these to program an ATmega328 on a breadboard.

http://www.sparkfun.com/products/9716


Since I couldn't find a wiring diagram (anyone have a diagram?) I'm wondering if  I can just wire it up like this gentleman did:

http://log.liminastudio.com/itp/physical-computing/easy-programming-for-breadboard-arduinos

The part that confuses me is that the Limina.Log page I linked to above used what I think is an earlier revision of the board.

SparkFun writes this about the newest revision: "The major difference with this board is that it brings out the DTR pin as opposed to the RTS pin of the FTDI cable. The DTR pin allows an Arduino target to auto-reset when a new Sketch is downloaded. This is a really nice feature to have and allows a sketch to be downloaded without having to hit the reset button. This board will auto reset any Arduino board that has the reset pin brought out to a 6-pin connector."

I just want to be certain I know how to wire it up before I buy it.

Thanks,
Jake

wanderson

New true random number library available at: http://code.google.com/p/avr-hardware-random-number-generation/

Current version 1.0.1

wanderson

Yes, basically.  You should connect the DTR line to the reset line (with the added capacitor) and the FTDI's TX to the Arduino's RX and the FTDI's RX (pin 0) to the Arduino's TX (pin 1), no resistors needed.
New true random number library available at: http://code.google.com/p/avr-hardware-random-number-generation/

Current version 1.0.1

Jack Christensen

The ICSP header is not what you want to connect the FTDI breakout board to. Further, an Uno does not have an FTDI chip. Here is a post I did that should help, see the schematic. The picture shows Adafruit's equivalent breakout board (https://www.adafruit.com/products/284) but the Sparkfun part is interchangeable: http://adventuresinarduinoland.blogspot.com/2011/05/evil-arduino.html
MCP79411/12 RTC ... "One Million Ohms" ATtiny kit ... available at http://www.tindie.com/stores/JChristensen/

BlueJakester


BlueJakester

#5
Jul 16, 2012, 01:20 pm Last Edit: Jul 16, 2012, 01:22 pm by BlueJakester Reason: 1
If you are a newbie like me and have been trying to make sense of FTDI, ICSP, Bootloaders, AVR dude, target boards, programmers, fuses and more, I suggest you read through this tutorial at AdaFruit:

http://www.ladyada.net/learn/avr/index.html

The tutorial helped me make sense of the terminology and how the various parts interact.

pluggy


BlueJakester


pluggy

Theres still a lot of mileage in 'old school' Arduino.........

It lost something when the Uno came along IMO.

perhof


SparkFun writes this about the newest revision: "The major difference with this board is that it brings out the DTR pin as opposed to the RTS pin of the FTDI cable. The DTR pin allows an Arduino target to auto-reset when a new Sketch is downloaded. This is a really nice feature to have and allows a sketch to be downloaded without having to hit the reset button. This board will auto reset any Arduino board that has the reset pin brought out to a 6-pin connector."


The difference they mention is compared to the FTDI cable.
There is no difference between this board and older Basic FTDI breakout boards from Sparkfun. The guide you have found is valid.
I made an example for the previous version a while ago: http://perhof.wordpress.com/2011/11/19/breadboard-arduinos-and-sparkfun-ftdi-basic-breakout/
My version of the board is a bit more similar to the current one than the oldest one. It has the same pin-out, just a different connector.

BlueJakester

Thanks Perhof. This is exactly what I was looking for!

Jake

CrossRoads

Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
Arduino for Teens available at Amazon.com.

hoff70


If you are a newbie like me and have been trying to make sense of FTDI, ICSP, Bootloaders, AVR dude, target boards, programmers, fuses and more, I suggest you read through this tutorial at AdaFruit:

http://www.ladyada.net/learn/avr/index.html

The tutorial helped me make sense of the terminology and how the various parts interact.


Thanks for that!

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