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Poll: Number of USARTS
Well, despite the fact that I lost my bet :shock: , thanks to the freaks who responded! I had expected that by far, a single usart would fill the bill, if any were needed at all...
Monday, 4 February 2013 - 21:34
Poll: Number of USARTS
For some reason, the zero option does not show up!
Thursday, 31 January 2013 - 20:57
How do I Supply 5 Volts with Common Batteries?
I could not find the specs for the Teensy 1.0, but it probably comes with the Brownout detector set to 4.5 volts.
Wednesday, 30 January 2013 - 22:58
CodeVision code for MMC
Check out FatFs... http://elm-chan.org/fsw/ff/00ind... It provides all the high level stuff, you provide a few low-level functions.
Saturday, 26 January 2013 - 11:41
ATMEGA1284 restart for an unknown reason
I tried an experiment today. This 3.3 volt board was designed for internal 8Mhz RC clock. I re-fused it for external clocking, and connected a generator. I loaded a simple 'echo'...
Friday, 14 September 2012 - 23:52
ATMEGA1284 restart for an unknown reason
@westfw I read the Arduino thread, seems similar to the thread here from a while back. One new twist I noticed however was crystal vs resonator. Seems resonator clocked parts...
Wednesday, 12 September 2012 - 22:07
ATMEGA1284 restart for an unknown reason
Hmm, interesting post from westfw. I didn't know that Arduinos were using 1284s now. I just did a cursory search on the Arduino forums, but didn't turn up any problems...
Tuesday, 11 September 2012 - 22:33
ATMEGA1284 restart for an unknown reason
There is already a thread floating around here about this problem. It seems some of the early production 1284s, when operated at near maximum clock, will reset when receiving...
Sunday, 9 September 2012 - 17:05
Measuring uAmps (without a good meter)
Quote:If I run the circuit as explained originally, but instead use a variable power supply, and set it so that the normal battery voltage is seen at the circuit side of the 100k...
Sunday, 9 September 2012 - 16:51
Measuring uAmps (without a good meter)
I have used the same technique at times in a pinch. You do not provide specifics about the avr or operating voltage, but your calculation is well 'within the ballpark' for the...
Saturday, 8 September 2012 - 20:03
Antenna Impedance in RF Systems
Yes, most of the inexpensive modules offer little documentation, a frustration I share with you. However the 50 ohm figure is not just a number someone picked out of a hat. The...
Friday, 31 August 2012 - 10:28
Step down transformer for DC power supply
Your post indicates a transformer with multiple primaries, or multiple secondaries, or both. To obtain any meaningful help from anybody, you will need to disclose... The...
Wednesday, 29 August 2012 - 22:15

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