Post Created date
Attiny2313 voltage drop?
ka7ehk wrote:The "input" on the second 2313 must be an output that is set low. Jim or he fried it while soldering, i have tested some cmos ics recently, and first they began to...
Tuesday, 28 February 2006 - 11:20
RC filter for PWM output
hi, i whould use an active filter (low pass, mfb) for best sound quality. What are your requirements? You can use an LC lowpass filter, that will be a little better in quality,...
Thursday, 16 February 2006 - 20:53
Ceramic Capacitor Voltage Rating
Joeks wrote:Hi there, Is it safe to charge/use a 10uF X5R Ceramic 0603 surface mount capacitor (6.3V Rating) at 5V, used between -40 and 85C ?? Would this hurt the capacitor with...
Thursday, 16 February 2006 - 20:45
Want to crack Atmel MCU?
mcu_cracker wrote:Want to crack atmel MCU? Contact me [Address deleted by moderator] [Posts involving copyright violation will be removed or edited.] ehehe dude :P you have to...
Thursday, 2 February 2006 - 12:42
NiMH single resistor charging, please double check
avrhornet wrote: Oops! I meant 0.03C. My fault. Varta says their packs normally last 6 years with a constant trickle. i was thinking about something like this :D no problem, btw...
Wednesday, 28 December 2005 - 14:21
Stepper motor control circuit
uh, yess, i was gonna recommend you the schematic you posted, the mosfet one, but you do not need that huge mosfet, a buz11 is enough for your purpose , even a buz71A whoud do the...
Wednesday, 28 December 2005 - 04:29
NiMH single resistor charging, please double check
hi, yes, you can do that, But note that if you keep charging your fully charged NI-MH pack you will slowly damage it, it is not especially good for it, PHilips recommends hiccup...
Wednesday, 28 December 2005 - 04:17
pt100 conecting with ATtiny2313
you can use a texas instruments 24 bit adc, connect it to your ports... there are examples on PT100 connection too. anyway, it is not worth using a PT100 with a 10 bit adc, it is...
Friday, 23 December 2005 - 17:46
How to generate sinusoidal PWM using timer1's fast pwm mode?
so... yes, take a sine table, and pwm output, increase pointer, ... with a dsp, you can calculate in real time and many more.
Wednesday, 21 December 2005 - 03:02
AVR I/O pin capacitance considerations
if you want high efficiency led driver, connect led in serial with a resistor to ground, example: 500mV @ 20mA => R=25 ohm, use a few hundred micro henry inductance, and configure...
Tuesday, 20 December 2005 - 05:10
pwm spikes
digital spikes are present everywhere when high speed switching, tis is the reason for using analog and digital grounds in high quality systems, i have sound card sb128 it does...
Monday, 19 December 2005 - 22:01
ATmega128 socket
OH no! dont mess like bread board with tqfp, make smt panel, neat, easy. regards
Monday, 19 December 2005 - 03:59