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@Js ho capito, grazie mille :) @Js I understand, thank you so much. :) I never used DS3231, I got  some free samples of it By maxim this mornig  Next days I will...
Wednesday, 30 November 2016 - 15:17
Hi, yesterday I changed the bad Crystal. After 18 hours works fine, I attach pic of  my "time-stamp"(clock in/on) prototype with iButtons. The last time I buy a cheap module...
Tuesday, 29 November 2016 - 21:30
Thx Chuck99,david,Paulvdh for your reply, Yes David, I think the problem is the cheap Shield bought on Ebay, today I buy one from adafruit :) Chuck99 Tomorrow I will change the...
Sunday, 27 November 2016 - 17:15
RS485 info
Thanks so much for material, I spent last week on RS485 for a new project 
Thursday, 24 November 2016 - 09:05
TIMER0 on Arduino Mega
I think is a library not included correctly. Do you can share your code?
Monday, 8 August 2016 - 15:07
TIMER0 on Arduino Mega
Do you use Atmel Studio?
Monday, 8 August 2016 - 14:47
TIMER0 on Arduino Mega
Thx for support :) Today I spend more times for testing more code and I discover that the problem is the usbasp programmer .... The code works ..
Monday, 8 August 2016 - 14:21
TIMER0 on Arduino Mega
..I cheked all PORTB pin .. 
Thursday, 28 July 2016 - 08:52
TIMER0 on Arduino Mega
Thx for your support, I used new code and checked the output with oscilloscope but nothing in addition I used another new Arduino mega  but to no avail.  
Thursday, 28 July 2016 - 08:50
TIMER0 on Arduino Mega
Thx Visovian for your reply, I'm using avr dude setted for m2560. I used your code:   #include <avr/io.h> #include <util/delay.h> int main(void) { DDRB = 0xff...
Wednesday, 27 July 2016 - 12:36