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Can i leave the 4 unused pins floating on a LCD in 4bit mode
I have a LCD that i will be running in 4 bit mode , i have seen some schematics where they are left floating ,and some where they are pulled high. Can i leave the 4 unused pins...
Wednesday, 20 October 2004 - 18:50
Help understanding schematic
I am going to make some optocoupler interfaced inputs on my AVR and i am trying to use (borrow the ideas from) this schematic. Its an Olimex board , that has 4 optocoupler inputs...
Wednesday, 13 October 2004 - 17:19
Nice Opensource CSS/CVS Revisioncontrol System
This really seems like a nice CSS/CVS Snipped from "The Muse" (J. Gansle) Now you can get control (for free) of your subversions , on your own pc (standalone mode) or a whole...
Wednesday, 6 October 2004 - 18:58
New entry in C tools sticky at top
Just added this to the C Tools Sticky at top. Introduction to the Volatile Keyword http://www.embedded.com/story/OE... Category : When to use the volatile keyword in C Level : ALL...
Tuesday, 5 October 2004 - 14:52
Controlling a 1KW 230v Heater from an AVR Pin (help)
Guyzz Im going to build yet another Avr SMS controller. It needs to control some 230v 800W..1200W heating panels in my dads sommercottage (also used in wintertime). I think i have...
Monday, 4 October 2004 - 19:36
VHDL beginner
Hi guyzz I just got a XILINX XC95108 CPLD Development Kit and an Altera MAX7000 devel board. Now i have to do somethings with them :oops: I bought them because i would like to...
Tuesday, 28 September 2004 - 15:33
Dallas One Wire Driver circuit
Hi Guyzz Im going to put 3 DS1820 on approx 30 meter of PDS Wire I have read in Dallas Application Note 148 Guidelines for Reliable 1-Wire Networks http://pdfserv.maxim-ic.com/...
Sunday, 19 September 2004 - 09:16
Remember to remove a Serial ICSP when done programming
Dammmm :oops: :oops: Just wasted 1.5 hours , because my Olimex M32 board didnt work when i had programmed it with an Olimex Serial programmer & PonyProg (The latest 6.0c...
Saturday, 18 September 2004 - 11:43
Can i connect +5v to the regulated side of a 7805 ??
Hi Guyzz I just bougt a cpl of Olimex AVR avr-p40b-8535 for my Mega32 project. http://www.olimex.com/dev/avr-p4... Schematic : http://www.olimex.com/dev/images... I am going to...
Wednesday, 15 September 2004 - 15:10
Is a TDS-3034 Scope OK
Guyzz I have been offered a tektronix 3034 Scope for around $1300 Not the B model , but it has RS-232 & GPIB But its a private sell on a newsgroup and the scope is in another...
Wednesday, 8 September 2004 - 16:06
SMD DE/Soldering Station (Is this one ok)
I have been looking at a SMD Soldering station As my old "Iron" doesnt even fit Colins $50 guide :cry: So if i have to buy a Soldering station , then why not get one with both. I...
Monday, 6 September 2004 - 16:14
What is parasitic power mode (DS1820)
Just fell over this Dallas DS18B20-PAR, 3 term TO-92 package. For use in applications where the DS1820 is operated in the parasitic power mode. Term 1 is GRD, term 2 is DQ. Term...
Thursday, 2 September 2004 - 19:54

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