Hello, I am trying to log flowmeter data on a SD card with Arduino Uno and Adafruit RTC SD shield. In order to reduce the number of write cycles to the SD card I am using circular buffer to store values. Unfortunately there is no circular buffer for strings (date-time string), so I am using a …

Writing string to SD card / string array

ArdiMike November 1, 2021, 11:07am 3

Hello.
Apparently I did not know. Thanks for advice.

Michael