That clock wont run
hi all,
im working on simple rtc 1307, 1 u can see in many tutorials. want
clock works 'tick' more precise the internal arduino uno counter (@atmega328p)
but wont it. sitting whole day , every time try new way same,
that clock wont run.
i followed tutorial ( http://www.glacialwanderer.com/hobbyrobotics/?p=12 )
clock tells everytime ask
"45:165:85 165/165/165"
its getting late , im out of ideas, maybe nice has idea or similar problem.
p.s. dont have shield rtc, ds1307 32k crystal on breadboard,connected on a4(sda)/a5(scl)
greetings,
mosfett
im working on simple rtc 1307, 1 u can see in many tutorials. want
clock works 'tick' more precise the internal arduino uno counter (@atmega328p)
but wont it. sitting whole day , every time try new way same,
that clock wont run.
i followed tutorial ( http://www.glacialwanderer.com/hobbyrobotics/?p=12 )
clock tells everytime ask
"45:165:85 165/165/165"
its getting late , im out of ideas, maybe nice has idea or similar problem.
p.s. dont have shield rtc, ds1307 32k crystal on breadboard,connected on a4(sda)/a5(scl)
greetings,
mosfett
want clock works 'tick' more precise than internal arduino uno counter
"45:165:85 165/165/165"
i understand ds1307 no more accurate arduino's timer, more convenient. ds3231 lot more accurate , costs couple of dollars more. looking @ drawing, have never seen pullup resistors on sda/scl lines before, , suspect ribble doesn't know doing. having said that, code appears similar use these guys
http://bildr.org/2011/03/ds1307-arduino/
who know doing.
i believe 165s signal bad, improper, or non-existent connection. removing resistors may fix that, otherwise check rest of wiring.
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