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Archive for June, 2009

Arduino LCD

June 10, 2009 Comments off

So today I finally got a dot matrix LCD module from Dick Smiths (Z4172) and proceeded to wire it to the Arduino. Ended up working out pretty good although the USB was struggling to run the Arduino + Ethernet Shield + LCD (the LCD contrast was dull even with the 10k pot wound right up). No biggie, I just pulled the Ethernet Shield off and went directly to the Arduino. It will probably be used almost exclusively on one computer so I think I will just control it via the USB serial port.

One thing I could not work out was why the screen would not work if I was using digital pin 1 for one of the connections. I ended up using from 2 to 8 which still allows me to use it with the Ethernet Shield should I want a networked little display! My initialisation line was LiquidCrystal lcd(2, 3, 4, 5, 6, 7, 8);

Check out some pictures of it below (extra points if you can work out where the quote on the screen is from without using Google!):

Categories: Arduino Tags: ,

Arduino Ethernet Shield

June 8, 2009 Comments off

I’m excited. My Arduino Ethernet Shield arrived from Little Bird Electronics last week. It is cool having the Arduino pingable on my network!

I have quickly hacked the SimpleMessageSystem to respond to commands over TCP/IP rather than the serial port and it seems to work ok. I have to code some more error checking and handing of the write commands but it shouldn’t be too difficult. I’ll have to see how I go about sending in my changes to Arduino’s site. Maybe I will just post a link to the networked version on my site. It will make interfacing with the Arduino from web pages (such as PHP like I am going to do!) far easier than through the serial port.

Check out the pictures below of the board and the software. It is in a very alpha stage but hopefully I should have something worth downloading in the future (probaby distant future).

Categories: Arduino Tags: , ,