Type in the full discussion title or a part of it.
Discussion Title Created date
14.4V drill connected to PC AT 12V PS smokes-low voltage?
Accu (14.4VDC NiCd accupack) in my drill went to silicon heaven, so I thouth I will connect Wagner W-144T 14.V to PC power supply - to 12V branch, which has 10Amps output and...
Thursday, 3 May 2012 - 19:44
[HOME AUTOMATION]Please help to improve schematic of CTRLR!
Dear freaks :) , could You suggest any improvements in my HOME AUTOMATION project schematic? Schematic is divided into three main parts: 1. MAINBOARD This board shall meet basic...
Wednesday, 12 August 2009 - 08:01
Circuit Improvements for driving LEDs from 230VAC?
Hello, please can somebody recommend me improvements in circuit in enclosure? I would like to improve dissipated power on resistor R2, which is more then adequate for this kind of...
Tuesday, 14 July 2009 - 10:01
Universal analog output design and protection with LM358
Hello, I found very interesting circuit with LM358 which I plan to embed in my home-automation project. Circuit uses four jumpers to set the output to a total of eight different...
Thursday, 18 June 2009 - 06:21
How to return CHAR ARRAY (or string/byte ar) from procedure?
Hello, I have no experience with pointers, also my experience with C is very limited, and I want to return data from mmcReadSector procedure. I found some code, but it does not...
Wednesday, 20 May 2009 - 08:44
Weird behavior of USART with analog ISP switch, R485 code
Hello, I have weird problem - my RS485 and RS232 converters works well only when USB ISP programmer is connected to ISP header of ATmega128. Otherwise it returns rubbish into PC....
Tuesday, 21 April 2009 - 07:55
FT232BM USB to UART converter doesn't work
My FT232BM USB to UART converter doesn't work, everything is connected according to enclosed schematics except of coil on VCC (jumper used instead) and indication LEDs. With...
Sunday, 5 October 2008 - 10:10
Why to use 4053 and PE0,1 for ISP programming of AM128?
http://www.embedded-os.de/pC_Mod... Above is link to ATmega128 dev. board. My questions are: 1. Is it necessary to use 4053 and PE0,1 for ISP programming of AM128? 2. Is it...
Monday, 25 August 2008 - 14:20
ITOA() strange behavior
I tried to use Peter Fleury library for LCD control and his example, everything worked fine except one thing: In main() there is defined num: char buffer[3]; int num=134; and...
Sunday, 24 August 2008 - 18:07
Interrupt driven debouncing tutorial - newbie
Hello, I would like to ask You for help with code below - it's basically timer overflow interrupt driven debouncing of button and LED turning on (LED turning off is commented-out...
Saturday, 23 August 2008 - 21:47