if I plug in my phone and my phone isn't ready to start charging (say it detects an overheat, common in Arizona), it just… doesn’t start charging. Just because

if I plug in my phone and my phone isn't ready to start charging (say it detects an overheat, common in Arizona), it just… doesn’t start charging. Just because the cars onboard charger now has power available to it doesn’t mean it has to start charging the battery. The EVSE is talking to the onboard charger, the on board charger is what actually interacts with the batteries. The EVSE has a specific resistance inline with a comm pin to indicate presence (even when unplugged from the wall) and modulates a frequency on the comm pin to indicate max amperage. The car puts a specific resistance on a different comm pin to request that the contactors close to connect the charger to wall power. Any problems or bugs thereafter are with the onboard charger, not the EVSE.