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Discussion Title Created date
powering AVR from another AVR output
OK, please tell me about the (in)sanity of power control by hooking up a slave AVR's Vcc or ground pin directly to an output of a "master" AVR. Put its own decoupling capacitor...
Sunday, 6 March 2005 - 14:35
AVR answer to PIC 10F?
I have a "glue chip" requirement that is one input and one output in size and can easily be handled digitally by even 1MHz. I'd like to retro-fit the solution right onto a small...
Monday, 14 February 2005 - 14:22
OT: PWM to logic level
I'd like to "smooth out" a PWM stream to simply detect when the duty cycle is low, or very high. Pulses come at 6Hz, and suppose the duty cycle ranges from 10% to 90%.. what's a...
Sunday, 23 January 2005 - 02:25
OT: data sheet single source
http://www.alldatasheet.com/ This seems to be a good source of data sheets all in one spot. Add-free, deep database, no charge full PDFs, good speed. What gives? I think google...
Sunday, 25 July 2004 - 14:00
Any "C Stamps" out there?
BASIC stamps seem to be everywhere, and the topic of assembler versus C came up again in this forum. I heard about Java-in-the-chip, but are there any "stamps" out there with C...
Wednesday, 9 June 2004 - 19:01
1/2 Vcc creating hardship on an input pin?
What happens when you need to use the analog comparator with Vref = 1/2 Vcc on one of its inputs (using a simple 2 resistor voltage divider)? The rule about not letting an input...
Tuesday, 1 June 2004 - 20:57
Zapped: Colin
Colin, know any good reference for PCB component footprints? ZAP!! Gotcha.. spotted in Nuts N Volts Feb.04 issue
Tuesday, 27 April 2004 - 14:30
OT: getting off-hook
I want to make an AVR circuit that detects low water level in my tank and dial out and leave a message to re-order water. The circuit will detect low, go off-hook and place its...
Tuesday, 6 April 2004 - 20:06
Atmel quick reference guide Feb04
They tucked this insert into my Circuit Cellar this month.. Probably because of the contest they got going. Anyway I flipped to through the chip charts. They said my trusty old...
Thursday, 11 March 2004 - 03:30
tip: using INT0 pin as a latching input
Hey! in the current Circuit Cellar article on TV oscilloscope, I learned about a neat "trick" using the external interrupt pin as a latching input, without generating an interrupt...
Tuesday, 13 January 2004 - 17:56
OT: keeping BJT biased
Basic Electronics Question... How does one keep a common bipolar junction NPN transistor biased and "switched on" by an AVR (Vcc=5) output pin connected to Base (via 4.7K) when...
Monday, 12 January 2004 - 00:42
maxim 6816/7/8 to AVR reset
Anybody successfully use or vouch for these switch debouncers? I want to control AVR reset from off-board signal (not a switch) and this jobbie seems to have the debounce EMI EMF...
Friday, 28 March 2003 - 19:54