i just upgrade from 1.5 board to v2.1
All looks fine except:
1. opto sensors leds wont light
2. hot end is heated more than is wanted. If i setup 200C it gets 225C..
3. When hot end and bed is heating, and bed goes up to 45C, fan on the power supply goes loud and
in a second is turned off and on and off and on...... is that normal?
many thanks David
*really love mine Felix! thank you!*