Static analysis

The Analysis tab lists Static Analysis checks. Run All runs every check; the play button on a check (Run this check) runs just that one. A finding shows under its check with the net or part it concerns:

Check	Finds	Severity
Floating Inputs	Input pins not connected to any net	error
Invalid Pin Reference	A net referencing a pin that does not exist on the part	error
Short Circuit	A net connecting a power output straight to ground	error
Voltage Compatibility	An output voltage above a connected input's maximum	error
Decoupling Capacitors	Power pins without a bulk capacitor on their net	warning
I²C Pull-ups	I2C nets missing their pull-up resistors	warning

The Static Analysis tab beside a servo tester circuit (an Arduino Uno, a potentiometer, an LED and resistor and an ultrasonic sensor) after Run All: Short Circuit is flagged with "Net 5V connects a power output directly to ground" and the other five checks pass

The simulation catches what static checks cannot, such as a part driven past its rating, see Simulation.