Yes, Carloop will support CAN protocol that is broadcast on pins CAN-H and CAN-L on the OBD-II (DLC) connector. Your assumption is correct, the combination of Carloop + Particle or Redbear will give you access to all the CAN messages on the bus. The ELM327 integrated circuit (not in Carloop) contains firmware that has a pre-established CAN messages decoder. You can do the same thing with Carloop and write your own software to decode any message on the bus.
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