Comments (1)
6v6gt-duino
commented on June 24, 2024
This is also raised in issue #11 and issue #41 (currently both open)
It is not harmless because it causes a failure on some platforms.
It is generally incorrect to include, in the constructor, functions which depend on the Arduino run time system being ready, since the object instantiation happens long before that. The unwanted call of begin( 16, 1) has the effect of calling delayMicroseconds() from the constructor and the impact of that depends on the platform. On AVR, delayMicroseconds() falls through immediately if timer0 is not (yet) running so it may appear to work although useless because the timings for the initialisation sequence as specified in the HD44780 data sheet are ignored.
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