Archive for the 'C/C++' Category

I have been thinking and experimenting really hard lately. I’ve bee trying to figure out exactly which on of the 500 projects I want to debark on. There are just so many in my mind but I do believe I want a project that will put all of my skills (so far acquired) to the […]

I just received an inexpensive keypad from SparkFun the other day and have attempted to hook it up with no such luck yet. I’m hoping I am just being stupid about the whole thing. I grabbed the Keypad Library from the Arduino Playground and set the correct pins according to the Arduino tutorial. No such […]

Well, the new LCD4×40Bit-ShiftReg library is working quite well. I’m actually thinking about changing the actual name of the library but figure the above is too long. Maybe I should try something like LCD3Wire4×40 or something. Your thought are greatly appreciated!
So anyway, I added my Parallax RFID card to the setup and finally worked out […]

Well I have finally finished the update to the original LCD4Bit library I have been hacking to bits. I’ve changed the code so that it now supports the 4×40 LCD with a NXP 74HC595N shift register. I had a hell of a time getting it all to work together and ended up having to setup […]

So I got a reply for John Ryan on the Arduino forums and he mentioned that I would need to use an interrupt to grab RFID data to ensure it did not stop my program while waiting for a tag. I banged my head around with the implementation of interrupt code but found a solution […]

So I managed to grab a Purdy LCD sample (thanks to LadyAda’s page) to test Arduino interfacing. The first problem I ran into was that my LCD has two LCD controllers (KS0066 - based on HD44780). Thankfully lega7 faced this issue and modified code to work with a 4 line LCD.
I started with that […]