Neil to check battery level, hold OON key with F6 key, then release. Select option 8 (power). The 50G will display the battery voltage on the stack. Itis hexadecimal and I can not tell you how to interpret it. Something you can test.
Yes , you can time stamp your records. Check the date command. I used to collect stock market stock prices in order to graph them. Here is some info to help you. Best place to store data is the SD card. On the 49G+, I did OK for about a year and a half, about 300 files. Well, the 49G has a limit on the number of file names you can have. I ran out one day. Got a file full error. I havent tried it on the 50G. Too much trouble. I have a suggestion. Have some spare SD cards. And change to a new one after you get 200 files or so. 64Megabyter's are OK, if you can still find
them.
Next, if you store a file out on the SD card, you can retrieve it OK. BUT, you can't write back to an existing file on the SD card. You can only create new files on the SD card. I had to load in the file from the SD card, write to it. then purge the file on the SD card and then write the updated file back out to the SD card. Well, that's when I usually had a low battery error. And a loss of data. So, I think thst one needs to make a back up copy of the modified SD card file before purging the SD card file. And have a process for storing it instead of the normal routine.
Lastly, it's tricky to generate a file name for the SD card. If you want me to, I'll send you some code to do it. Took me a while to figure it out. good luck Ed VE
nlosin <nlosin@...> wrote:
nlosin <nlosin@...> wrote:
Hi all,
I'm a biologist who works in some remote locations, and I'm interested
in a calculator that can double as a data entry device. I know the 50g
has an internal clock -- does anyone know if it's possible to write a
program that would allow data entry with a timestamp attached to each
data point? This would be really handy for my work. If I could make
use of the internal clock in this way, that would definitely tip the
balance toward this calculator over the TI-89.
How do you find the battery life on the 50g? How many hours of
operation might I get from a fresh set of AAAs?
Thanks in advance for your help! And please forgive the naivete of a
newbie :)
Neil Losin