Description of elm 329

ELM 329


Description of ELM 329: This device only supports CAN unlike the popular elm 327


description elm 329


The current firmware adds several new features for users that have been requested by users:

  • ELM 329 now supports ISO 15765 and SAE J1939 protocols;
  • Also provides 5 custom protocols;
  • Support for periodic CAN wakeup messages;
  • Has a CAN monitor automatically switched to energy saving mode;
  • Also has general purpose inputs and outputs;
  • Now can send arbitrary CAN messages at any time;


The latest version greatly increases the speed of code execution compared to the previous chip, and also adds new filters for what we call "CAN input matching frequency.