Post Created date
IC sockets
Thanks, Arnold and Al. The ebay one looks good but I guess I face a risk of the socket not working.
Sunday, 18 October 2009 - 14:28
diode + mux question
Ok that worked. Thanks, eskiolola. One last question: Is there a commonly used 16 channel analog mux similar to 74hc4051? I can use two 74hc4051 but it will be very clumsy code...
Friday, 16 October 2009 - 04:03
Reducing code size on M48
I tried to post today morning but somehow I couldn't post. Anyway I changed my code to remove the float and the division but I do have the printf statement. The program memory is...
Friday, 16 October 2009 - 00:52
ADC pins have strange voltage across them o_O
Are you using a breadboard for this? Maybe some of the wires are not making contact? Also regarding the code, here are my inputs: ADMUX &= ~(1 << REFS1); ADMUX...
Wednesday, 14 October 2009 - 13:23
Negative voltages
Thanks, JC that is certainly very useful info. I tried driving an LED with the V- and it seemed to glow. Why would changing capacitors change the current sinking? Is it something...
Wednesday, 14 October 2009 - 00:54
MAX4617 availability
Ok I finally got the samples. I had ordered them on September 30.
Wednesday, 14 October 2009 - 00:48
diode + mux question
Thanks, eskoilola and alwelch. I will take a look at the suggested idea and the book as well.
Tuesday, 13 October 2009 - 21:00
Negative voltages
Thanks, eskilola and Bob. That's a great idea, Bob. I found that pin 6 (V-) on my MAX232 IC is showing me -5.24V. Any idea of the max. current this pin can sink?
Tuesday, 13 October 2009 - 03:29
diode + mux question
Monday, 12 October 2009 - 23:40
diode + mux question
Ok here is a stupid question: If a diode gets reverse biased and I measure the voltage as say 1.5V does that mean the diode is working? I have a clamp voltage (about 3.3V) which I...
Monday, 12 October 2009 - 02:38
diode + mux question
Thanks for the advice, Mike. Actually I tried that idea but I don't remember what I got, I tried so many things in desperation. :) I will try it again. Actually I was thinking...
Monday, 12 October 2009 - 01:49
MAX4617 availability
Thank,thmjpr. I will do that.
Friday, 9 October 2009 - 12:10