ESP32 Volume 7

CAN Error Handling and Recovery

Understand CAN bus error states (Error Active, Passive, Bus-Off) and implement error detection and recovery mechanisms using ESP32 TWAI.

Implement hardware acceptance filters for ESP32 TWAI to efficiently process relevant CAN messages and ignore others, reducing CPU load.

Learn sending and receiving CAN frames (standard & extended IDs) using ESP32 TWAI. Handle data payloads and message arbitration on the bus.

Configure ESP32 TWAI controller: set bit timing, operating modes (Normal, Listen-Only), and initialize for CAN bus communication.

Intro to ESP32’s TWAI controller for CAN bus communication. Learn basics of the Two-Wire Automotive Interface, its applications, and benefits.