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Topic: Arduino circuit/breadboard not working at higher voltage? (Read 7 times) previous topic - next topic

CrossRoads

Use the analog pin to read voltage levels, maybe the voltage on a potentiometer for example, then do something with the resulting 0-1023 result (representing 4.89mV steps).
A0-A5 can be used as analog inputs, or as digital input/outputs.

I don't think D13 flashes during programming, I think at the most it just turns off after the download starts.
If you have an FTDI-Basic or equivalent
http://www.sparkfun.com/datasheets/DevTools/Arduino/FTDI%20Basic-v13-5V.pdf
for programming, it has LEDs that flash during programming.
These are the 2 yellow LEDs in the bottom middle of the UNO schematic.
Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
Arduino for Teens available at Amazon.com.

xl97

I know you said you use 100nF caps for those 3 places (7&8) & (20&22/21&22)

I dont think I have any on hand looking in my stuff.

I checked radio shack..  they didnt seem to carry much in caps at all..and no 100nF's

I do have

a.) 50v 0.47 20% Xicon Axial Eletrolytic Caps

and

b.) C326 0.1uF 50v Radial/Ceramic Caps

anything else be used?

guess I'll have to wait to order some stuff form mouser or something.. (hate paying shipping on small stuff like this) haha


thanks

CrossRoads

The 0.1uF would be great.

Are you in the US?
Browse www.dipmicro.com. $2.50 for shipping, great prices on stuff like this. Stock up a little qty 10 of things, prices drop down to 5-6 cents per part kid of range. They have some 'kits'  of parts, collections of caps, resistors, LEDs I think too, you can be set for a bunch of projects.
Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
Arduino for Teens available at Amazon.com.

xl97

thanks for the link!.. (checking it out now)

yes, Im in the US.. upper mid-west (WI to be exact)

I'll use the 0.1uF's (3 of them) until I can get some 100nF's in then..

thanks



CrossRoads

one =    1.0
tenths =         0.1 (1x10E-1)
hundredths = 0.01 (1x10E-2)
milli    =             .001 (1x10E-3) m
micro =             .000 001 (1x10E-6) u
nano =              .000 000 001 (1x10E-9) n
pico =               .000 000 000 001 (1x10E-12) p

So 100 nanoF = 100 x 10E-9 => 1x10E-7 => 0.1x10E-6 = 0.1uF
Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
Arduino for Teens available at Amazon.com.

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