Hi caskaz, good to hear from you but sad to hear about your Shiba, daughter of Tetsuhidemarugou and Tamahanahimegou. She almost made it to a full 17 years! A long long life in the life of a much loved Shiba. I had a much loved poodle that lived for 19 years. I still miss her even though that was almost 20 years ago.
Sorry to hear about your shiba. Our shiba died two years ago, and it still pains. Her ashes are in two places - one half in Norway, the other half in Japan. Under trees in the gardens.
Made DogLifeClock again because of new puppy.
I used VFD this time.
Upper line indicate current time.
Lower line indicate dog's infomation(name,birthday,livingdays,age).
Calibrated Aging register because of getting more accuracy.
Compared 1PPS on GPS and 1Hz(SQW terminal) on DS3231.
Drift is about 2 or 3ticks when Aging register is 3.
Aging register is kept its value by Battery.
Upper line on characterLCD indicate ticks of 1PPS.
Right of Lower line is ticks of 1Hz of DS3231SN and left is value of Aging resister.
PS.
2pcs are DS3231SN.
1pc is DS3231M.
DS3231M's drift about 200ticks.
DS3231SN have TCXO(+-2ppm).
DS3231M have MEMS(+-5ppm).
Comments
I lost Lilly in March. Still miss her very much.
https://forums.parallax.com/utility/thumbnail/133078/FileUpload/ff/7db9f559ce2ed3905a02a3cce15b01.jpg
Mike
P.S.
I am grateful to your comments,Peter,Shawn,msrobots.
Made DogLifeClock again because of new puppy.
I used VFD this time.
Upper line indicate current time.
Lower line indicate dog's infomation(name,birthday,livingdays,age).
I bought DS3231(a set of 3)
Calibrated Aging register because of getting more accuracy.
Compared 1PPS on GPS and 1Hz(SQW terminal) on DS3231.
Drift is about 2 or 3ticks when Aging register is 3.
Aging register is kept its value by Battery.
Upper line on characterLCD indicate ticks of 1PPS.
Right of Lower line is ticks of 1Hz of DS3231SN and left is value of Aging resister.
PS.
2pcs are DS3231SN.
1pc is DS3231M.
DS3231M's drift about 200ticks.
DS3231SN have TCXO(+-2ppm).
DS3231M have MEMS(+-5ppm).
I bought Makeblock Me LED Matrix 8×16.
I watched this
I built up pen-plotter too.
I bought 8x8Matrix-module of MAX7219.
MAX7219 demo
Connected 16 matrixs.
Uploaded Demo
Wow that last one was cool
demo