Let's Make Robots!

FTDI

Sparkfun FTDI Basic fix

Like another user on the forum, I had problems with my FTDI cable and I couldn't program my Arduino at all. It used to work flawlessly, but suddenly it stopped working all together. It's recognised by the computer and by the Arduino IDE, but whenever I try to upload a sketch it displays the "not in sync" message. However, it works if I plug the FTDI cable into the computer, then click upload, and at the very moment when the IDE displays the sketch's memory info I plug the cable to the Arduino.

Hope this helps 

Okay this is just a concept at this point, but If it generates enough interest i'll begin finishing the design. I want to take the Sanguino, Arduinos Middle child … Read more

Linux crashing when reading from serial port, problem and solution

The problem:

I have a weather station project going on and I'm planning to use my Linux box for data logging. I have ATMega168 writing data to its USART, FT232R doing USB serial (see my first SMD soldering here: http://letsmakerobots.com/node/23323) and Ubuntu Linux logging data. Here's a simple picture of the setup:


Weather station data logging test setup

I am going to tell you how to use the same cable you use to program your Arduino with to program a Picaxe. I am sure this could also be used the other way around … Read more