Hello everyone!
I'm new to this forum and its ways, but I will try to be as specific as possible.
I'm building a setup for electric vehicle charging, so a charging point and a simulation of a vehicle communication controller. There are three layers to the project:
1: The power circuit (circuit breakers, powerlines, etc)
2: Basic communication, using a PWM signal on an extra wire in the supply equipment to vehicle coupler. There is more going on but that does not really matter here.
3: Wireless "High-Level Communication" ("HLC") (as per ISO/IEC 15118). This is new.
I wanted to enable 'retrofitting' so the old charge points are still useable, even without implementing HLC, as this is key for availability of charging infrastructure.
So basicly, charging will start using the PWM and basic signalling; if HLC is available in the vehicle, a connection should be established so more detailed information can be exchanged.
Now for my question: I want to use an RFID scan (using http://www.ebay.co.uk/itm/Mifare-RC522-Card-Read-Module-Tags-SPI-Interface-Read-and-Write-/400426561641?pt=LH_DefaultDomain_0&hash=item5d3b487069) at the supply equipment to get the Bluetooth adress of the vehicle. then, while charging a