Simple Circuit Keeps Process Control Loops in Tune - Spare a moment’s pity for the process engineer, whose job it is to keep industrial... - https://hackaday.com/2023/10/19/simple-circuit-keeps-process-control-loops-in-tune/ #loopcalibrator #processcontrol #currentloop #toolhacks #arduino #4-20ma #0-10v #lm358 #loop #pwm