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EVSE states can be tested with a few resistors and a diode, and EV Simulator or an EVSE Tester. After a sucessful Power on Self Test OpenEVSE should enter State A - Ready and the LED/LCD should be Green.

State B - EV Connected. Connect 2.74k resistance plus a diode from Pilot to ground. OpenEVSE display should display "EV Connected" and LED/LCD should turn Yellow. (OpenEVSE Sim - 1 on)

State C - Charging. Connect 882 ohm resistance plus a diode from Pilot to ground. OpenEVSE display should display "Charging" and LED/LCD should turn Blue. (OpenEVSE Sim - 1 on + 2 on)

State D - Ventilation Required. Connect 246 ohms resistance plus a diode from Pilot to ground. OpenEVSE display should display "EVSE ERROR - VENT REQUIRED" and LED/LCD should turn Red. (OpenEVSE Sim - 1 on + 2 on + 3 on)

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