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Discussion Title Created date
STK500 broken?
Hey everyone, Last night my STK500 suddenly stopped being able to program any uC I tried. Attached is the screenshot of the error I get from AVR Studio. I'm not really sure what...
Sunday, 3 February 2008 - 18:33
DC-DC step up?
I'm currently working on a project that has 1 component (a dc water pump) that requires +12V. I'd like to use the current +5V supply the rest of the project uses however I'm not...
Friday, 25 January 2008 - 17:10
pH meter
I've done some searching but I'm not coming up with any good results. Does anyone have any experience with or know of any good pH meter ICs? Or even better, how to make one? =]
Thursday, 17 January 2008 - 21:16
[solved] PWM decoding help
Hey everyone, I picked up a Parallax Ping))) ultra sonic distance sensor (#28015, datasheet attached). It takes a 5-25us pulse and then returns a pulse from 18.5 - 115us. So I...
Wednesday, 9 January 2008 - 03:18
can't clear LCD
Hey everyone, I picked up a 20x4 GDM2004D (HD44780 compatible) from sparkfun the other day and I've been able to write text to all 4 lines however when I attempt to clear the...
Sunday, 6 January 2008 - 17:15
Not quite sure what to ask... AC/DC Switch?
Not only am I new to AVRs but also electronics in general. I'd like to build a switch controlled by an AVR that would turn on an AC circuit (a power strip for example). Can anyone...
Thursday, 3 January 2008 - 19:16
PWM Tutorial - Accelerometer
Hey everyone, I'm trying to read values from a Memsic 2125 accelerometer however I can't seem to find a good tutorial on PWM usage. Abcminiuser's timer tutorial was great but...
Sunday, 30 December 2007 - 17:56
Help getting started with first LCD
Hey everyone, I'm having a bit of trouble getting started with this 16x2 LCD (Seiko L1672). It uses the KS0066 interface and I've come up with the following code from what I was...
Sunday, 23 December 2007 - 21:18
L1672 Datasheet
I'm trying to write a driver for this L1672 16x2 LCD I picked up but I can't seem to find a datasheet for it. It appears to be manufactured by Seiko (SII ?). Google turned up a...
Saturday, 22 December 2007 - 19:33
quick question about I/O
I'm a little confused about how I/O works so I made this little example but it doesn't seem to be working. I'm connecting the anode of an LED to port B0 and the cathode to port D0...
Tuesday, 18 December 2007 - 06:04
Help with asm loop
I'm having a little trouble getting this loop to work. I've been reading the documentation over at avrbeginners.net and constructed this: #include #define DDRD 0x11 #define...
Friday, 14 December 2007 - 21:58
Difference between OUT and SBI
I'm just beginning to learn assembly and I'm curious what the difference between the 'out' and 'sbi' instructions are. The data sheet specifies that out "stores data from register...
Tuesday, 11 December 2007 - 20:52

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