I am working on a data logger that uses a GPS to record precise times of data (using pulse-per-second output). However, because it needs to log 40 samples per second, I use "delay" and "millis" to determine when to log each sample. The problem is that the two timing methods here disagree. When I lo…

problems combining millis() and GPS timekeeping

JChristensen January 31, 2013, 3:08pm 19

michinyon:
Which GPS are you using to get 40 samples per second ?

I read that he was logging data 40/sec, not that the GPS was providing updates at that rate.

Topic		Replies	Views
Micros vs. Milis: Accuracy of interrupt measurements Programming Questions	20	7870	May 5, 2021
Using millis() or micros() in an ISR Programming Questions	21	3688	May 5, 2021
GPS millis() delay Programming Questions	10	3278	May 5, 2021
Using millis() for timing from data-logger example sketch Programming Questions	4	1352	May 5, 2021
delay vs. (millis() - timestamp > x) AND processor usage Programming Questions	4	3208	May 5, 2021