Newbie: Temperature measurements

[Acetronics2]

Hi, Jackson

Just forgot the RTC ... good idea, no ???


Alain

[T.Jackson]

Just forgot the RTC ... good idea, no ???

A Real Time Clock wouldn't be a too bad of an idea if extremely accurate time keeping was required. I personally wouldn't bother with its expense if all I wanted to do was take a temp reading every 10 mins for a couple of days.

Well structured code can be written to suffice for a simple clock that may only lose or gain a few seconds here or there in a period of 48 hrs.

Trent Jackson

[Acetronics2]

Well structured code can be written

Trent Jackson

Trent,

Do you remember our friend wrote " I'm a beginner ..."

Cheers ...

Alain

[paul borgmeier]

Then the OP is in luck - the second code set listed here
http://www.picbasic.co.uk/forum/showthread.php?t=2129
maintains time as well as most RTC ICs and could easily be ported to 628A or similar. This code is around 30 lines or so of instructions to do this.

Also, if the OP only wants 10 minute intervals over 48 hours, the 628A could be used without external EEPROM ... stash some in the on-board EEPROM and the others in DATA MEMORY. It's battery powered - just do not turn it off until the data is downloaded. This could be a stepping stone to more data and and external EEPROM.

The manual has the "RS232" connection for PIC direct to PC - see SEROUT for example. No need to add MAX232 unless he want to do it really right. Again, a stepping stone to more complexity.

Just some ideas - good luck blinking your led.