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Discussion Title Created date
IC sockets
Has anybody seen a cheaper ($20-50) 80 lead TQFP socket similar to the link below? [url] http://qfp-adapter.com/Site/QFP-... [/url] Thanks.
Friday, 16 October 2009 - 21:39
Reducing code size on M48
Hi Freaks, I have completed a program for an app. on the Atmega48 and my code size is 110.7%. I have added the libm.a library to my linker. I use a floating point calculation as...
Thursday, 15 October 2009 - 11:53
Negative voltages
Hi Freaks, Attached is a schematic from the STK500 kit. Can I get negative 5V from this? Thanks. edit: Rephrasing the question: How can the above circuit be modified to give +5V...
Tuesday, 13 October 2009 - 00:05
diode + mux question
Hi Freaks, I am using a 74hc4051 mux/demux to switch GND's to diodes. The mux is controlled by three AVR ports. The diode drop is measured by the AVR ADC channel. Here is my...
Sunday, 11 October 2009 - 23:44
MAX4617 availability
Hi Freaks, Does anybody know where I can get MAX4617 parts from asap? I need about 4 of the 16 lead DIP parts.I have already ordered some samples from Maxim but I think that will...
Wednesday, 7 October 2009 - 00:47
Understanding STK500
Hi Freaks, I was looking at the STK500 schematic and wondered how the different IC's are multiplexed? I saw that all the similar function pins from the different sockets (e.g....
Tuesday, 6 October 2009 - 12:56
Bridge rectifier
Hi Freaks, I was looking at the STK500 schematics and wanted to know if the DC jack ground and the bridge rectifier ground can be made common? Thanks.
Friday, 2 October 2009 - 04:29
Accidently shorted ADC channel on M48
Hi Freaks, I am working on some projects and in one of them, I accidently shorted the ADC1 input pin of the M48 to GND. VDD -----+- 5V...
Wednesday, 30 September 2009 - 22:21
ESD diode drop measurement
Hi Freaks, This is part of a more general question I have asked in the off topic forum but I would like to get your opinions on an ESD diode voltage measurement. This is the diode...
Wednesday, 30 September 2009 - 03:07
Soldering companies?
Hi Freaks, Does anybody know of any companies that do soldering? I would like to get a board with some components soldered. Thanks.
Wednesday, 30 September 2009 - 02:35
STK500,M48 and USART
Hi Freaks, I am trying to make the USART on my M48 work with the STK500. I have already tried this with the M16 with STK500 and it has worked. However, it has been a while and do...
Sunday, 27 September 2009 - 15:10
M48 ADC again!
Hi Freaks, I am trying to use the M48 ADC to display a value on the LCD. I have used this before with a temp. sensor and the entire circuit works fine. Here is what I am trying...
Thursday, 24 September 2009 - 03:45

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