Post Created date
Wire for prototypes/dead bugging/kloodges?
This type of wire is available from Newark and Mouser, and is very handy for correcting misrouted traces in printed circuit boards... er, uhm, I meant to say, make engineering...
Wednesday, 8 May 2013 - 20:19
ADC Offset on 644P
It would be helpful to know the sign and magnitude of the error, whether it is always the same or varies, etc. Are you attempting differential conversion? That is not supported...
Sunday, 5 May 2013 - 11:19
Reading data from MAX6675
You have pulled Slave Select low AFTER initiating the first transfer. You need to do so BEFORE initiating the transfer.
Saturday, 4 May 2013 - 15:40
BMP085 oss=3 wrong reading
It could be you have one of the faulty breakout boards from 'SF'. These do not have Vddd connected (pin 4). Leakage from Vdda and your TWI pull-ups can accumulate enough charge...
Saturday, 4 May 2013 - 10:56
Alternative to Wiznet W5200
I have used W5100 extensively, but 5200 not at all, so I don't have room to talk. But it seems very odd that Wiznet has vetted the communications, yet it does not work. Do you get...
Thursday, 2 May 2013 - 17:12
scanf an long long int results problem
The runtime library does not support 64 bit (long long) conversions for either printf or scanf.
Sunday, 28 April 2013 - 23:21
2.4GHz RF - Unexpected result!
Torby wrote... Quote:Perhaps putting a wire to ground would make it a dipole? Not unless it is a proper ground plane. Recall that a 1/4 wave antenna is simply half of a dipole (1...
Friday, 26 April 2013 - 22:54
2.4GHz RF - Unexpected result!
A loop antenna is not (very) dependent on having a good ground plane. A 1/4 wave 'stub' stub, on the other hand, is very dependent on having a proper ground plane.
Thursday, 25 April 2013 - 23:14
Capacitor on AREF of ATmega328.
Data sheet says AREF input resistance is 32K ohms. RC time constant with 100 nF cap is 3.2 milliseconds. Since it takes ~4 time constants to reach 99% of final value, a ~13...
Thursday, 25 April 2013 - 10:37
Battery charger
If the adapter output is only 12 volts, the battery will not charge properly.
Saturday, 20 April 2013 - 11:44
Experience with beam resistance of AVR
What kind of radiation. What intensity? I have exposed AVRs to ~5500 angstrom radiation, for years on end, with hardly any ill effects. :D On the other hand, I also happen to have...
Friday, 19 April 2013 - 22:34
Stringification does not do what you are expecting... #define VALUE1 10 #define VALUE2 20 #define VALUE_SUM VALUE1 + VALUE2 #define XSTR(s) STR(s) #define STR(s) #s const...
Thursday, 4 April 2013 - 06:10