Post Created date
Socket adapter
Crimp two of the plugs onto your ribbon cable and remove (side-cutters) one row from each (being careful not to remove the same row from each) That will give you access to all the...
Tuesday, 12 June 2007 - 07:04
crystals: HC49/US cans, or cylinders?
Most cylinders have to be laid down & stuck to the board to avoid vibration causing wire breakage due to metal fatigue (applies to caps/xtals/inductors etc. - anything that's...
Friday, 8 June 2007 - 06:16
LCD as a memory location
If you don't need to read back, memory map a couple of 8-bit latches. use one for data and the other for control lines (or cram it all into one byte with 4-bit mode) That gets rid...
Thursday, 7 June 2007 - 05:36
Moisture Rich Environment
IP67 or (from theatrical experience) if you don't have too many external connections and/or heat generated on the board, heat seal/vacuum pack in a thick polythene bag. The wires...
Tuesday, 5 June 2007 - 02:21
Manually programming an AVR (with no external computer)
daqq wrote:zbaird wrote:Quote:I'm designing my own processor Mad dogs and Englishmen... And Slovakians! I'm also in the process of doing so. :-D It's fun! Add Anglo-Irish...
Thursday, 31 May 2007 - 04:25
Manually programming an AVR (with no external computer)
Long ago, I made a switches and LEDs (7-seg) interface board that plugged into an Apple ][ clone and gave me the equivalent of the front panel of my S-100 bus machine. I don't...
Tuesday, 29 May 2007 - 04:05
Interface for ADNS-2610 Mouse sensor?
Use the entire mouse and write (or search for) a PS/2 interface.
Thursday, 26 April 2007 - 02:19
upgrading 4x40 LCD
40x4 usually needs 2 chip selects (E1/E2). Watch the timing if you memory map LCDs - I've had to use latches as the data didn't stay in place on the bus long enough.
Thursday, 26 April 2007 - 02:17
STK600 ! Official announcement on AVR TV !
Quote:a handful of naked daughterboards I could use those for my STK500 - I'm making my own STK5xxs with pin headers and matrix board. It's getting hard enough to see the pins on...
Tuesday, 17 April 2007 - 03:16
Question about USI.
Daisy chain (cascade) your shift registers. Output your 40 bit string with the shift clock. After all shift registers are loaded, clock the storage registers and that will...
Thursday, 1 March 2007 - 07:45
why cant i program my baby orangutan again?
You will get the same error message if there is something else on the programing pins of the AVR and there are conflicting signals.
Thursday, 15 February 2007 - 04:17
Asynchronous VS Synchronous serial communciation?
In Async mode - you send a character when you want to down a single channel In Sync mode - you send a bit every time the clock transitions in a particular direction whether you...
Thursday, 1 February 2007 - 07:45