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Beginner LTspice questions?
I updated to the newest LTspice (version 4.23c) and made a simple circuit to test p-channel mosfet switching. It appears to now be working.   When zero volts are at the...
Sunday, 19 July 2015 - 03:21
Beginner LTspice questions?
The mosfet appears to be letting current through even when its switched off in simulation. I tried a varied duty cycle square wave into an r-c filter and i was able to get...
Sunday, 19 July 2015 - 01:57
Usart reading problems
The internal clock could very well not be running at 1MHz, it is not as accurate as a crystal oscillator/ external clock running from a crystal.  USART' sends and receives...
Saturday, 18 July 2015 - 11:18
Usart reading problems
Are you using an external crystal for the chip clock source?  
Saturday, 18 July 2015 - 08:12
Powering an Atmega 168 with a solar panel
Impressive, could use it in a power supply for a survivalists radio transmitter. 250mV starup, could really suck the remaining life out of 1.5v batteries.   
Friday, 10 July 2015 - 20:39
Powering an Atmega 168 with a solar panel
I would look at trying to use a boost converter circuit that works at the lowest input voltage you can find. Like how to get 5vdc out of a 1.5v battery to the likes. http://www....
Friday, 10 July 2015 - 02:51
Budget Oscilloscope under £200.
http://www.ebay.com/itm/B-K-Prec...   Here's a working 100Mhz analog scope off ebay in the US for $100 out the door.   EDIT*** woops, just saw you wrote 200 euros :/
Tuesday, 7 July 2015 - 03:36
Bread board capacitance and external Crystal Clocks
Frequency was at 12000.500 Khz with 27pf caps on each side of the crystal to ground.  An oscilloscope probe on XTAL2 dropped the frequency by 1100hz. Doubling the caps to...
Thursday, 2 July 2015 - 02:40
Bread board capacitance and external Crystal Clocks
UPDATE: My program was pre-loaded onto the chip befor switching from the internal oscillator to external and was running fine. When trying to reprogram the MCU with my USBtiny...
Thursday, 2 July 2015 - 01:57
Frequency capture/ blinking regurgitator via Input Capture and software calculating the clock cycles. Software works one way, not another. Play with if you wish.
I received a Prophet 600 about a year ago that was in need of repair. Took me 3 days to figure out the problems and much learning was had. Replacing two SSM filter chips and a...
Thursday, 12 March 2015 - 04:19
Frequency capture/ blinking regurgitator via Input Capture and software calculating the clock cycles. Software works one way, not another. Play with if you wish.
Just learning how to do things and gaining experience for what i need.   I have been working on modular/analog synthesizer designs for 9 months and now im working with Atmel...
Wednesday, 11 March 2015 - 19:41
Frequency capture/ blinking regurgitator via Input Capture and software calculating the clock cycles. Software works one way, not another. Play with if you wish.
Ingests the frequency period and then vomits it back out.  It counts the timer/counter cycles from the rising edge to rising edge input of a low frequency square...
Wednesday, 11 March 2015 - 19:29

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