EM327 OBD to RS-232 Interpreter Reference Board

ELM327 is an Automotive On-Board Diagnostics (OBD) interface chip that is used to read multiple OBD Protocols.  The ELM327 reference board is based on the ELM327 OBD reference design from ELM Electronics.




  • 100% Thu-hole components
  • Designed to fit in Serpac A27 A-Series Electronic Enclosure
  • RS232 Computer interface
  • OBD II 9-Pin Cable Interface

Circuit Diagram



Reference Links