DOG WHISTLE
A complete ISO 15118 communications stack on a standard M.2 2242 card. Drop it into any EVSE — or any EV — and ship V2G and DER capability without writing a line of protocol code.
We did the hard part: SLAC, Green PHY, EXI, TLS, Plug & Charge PKI, bidirectional power transfer. You add a socket.
INTEGRATED. The hard part, handled.
ISO 15118 is becoming table stakes for chargers and vehicles alike — and building the stack in-house means PLC hardware design, EXI codecs, PKI infrastructure, and years of conformance testing. Dog Whistle puts all of it on one card.
One standard M.2 2242 socket adds ISO 15118 to any EVSE or EV controller. No PLC analog front end to design, no EXI codec to write, no stack to maintain.
ISO 15118-20 bidirectional power transfer sessions, negotiated and managed on-module. Your firmware sets limits; Dog Whistle runs the protocol.
IEEE 2030.5 (SEP 2.0) client with CSIP profile support for utility DER programs, aligned with IEEE 1547-style interconnection requirements.
Full ISO 15118 PKI: TLS, contract certificate handling, secure-element key storage, and certificate installation and update flows.
Field-selectable SECC (charger-side) or EVCC (vehicle-side) operation. One part number covers your EVSE line and your vehicle platform.
NEVI and emerging procurement rules increasingly require ISO 15118 and Plug & Charge. Meet them without staffing a protocol team.
COMPLETE. The full stack on one card.
Everything between the Control Pilot line and your application firmware, pre-integrated and conformance-tested.
| Form factor | M.2 2242 · 22 × 42 mm |
| Host interface | USB 2.0 · UART · SPI via M.2 edge connector |
| Supply | 3.3 V single rail |
| Powerline comms | HomePlug Green PHY · SLAC per ISO 15118-3 |
| Protocols | ISO 15118-2 · ISO 15118-20 (incl. BPT) · DIN SPEC 70121 |
| Roles | SECC (EVSE-side) and EVCC (EV-side), field-selectable |
| Security | TLS · X.509 Plug & Charge PKI · secure element key storage |
| DER integration | IEEE 2030.5 / CSIP client via host network |
| Backend hooks | OCPP 1.6J / 2.0.1 ISO 15118 extension support |
| Connector standards | SAE J1772 · SAE J3400 (NACS) · CCS pilot signaling |
| Operating range | −40 °C to +85 °C |
Protocol stack · pilot line to payload
DESIGNED IN. Socket to ship in three steps.
Dog Whistle is built to disappear into your product. No RF layout review, no protocol team, no new certifications scoped from scratch.
Place a standard M.2 2242 socket and the Control Pilot coupling circuit from our reference schematic. That is the entire hardware change.
Talk to the module over UART, SPI, or USB with a simple message API. Charge control stays in your firmware; the protocol stays in ours.
The stack arrives conformance-tested against ISO 15118 test suites, so your certification effort covers your product — not the protocol.
The design-in package includes a carrier reference design with the Control Pilot coupling front end, EMC layout guidance, host API documentation with sample code, and a dev kit that runs the full stack on your bench before your board exists.
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