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GPIO Hints

Si Jones edited this page Jan 3, 2026 · 1 revision

Recommended PIN Configuration

esp32dev Environment

  • CAN_BUS_CS_PIN: 2
  • CAN0_INT: 22
  • VEDIRECT_RX: 33
  • VEDIRECT_TX: 32

esp32plus Environment

  • CAN_BUS_CS_PIN: 5
  • CAN0_INT: 13
  • VEDIRECT_RX: 33
  • VEDIRECT_TX: 32

esp32-ESPCAN Environment (Built-in CAN)

  • CAN_TX_PIN: 27
  • CAN_RX_PIN: 26
  • CAN_EN_PIN: 23
  • VEDIRECT_RX: 33
  • VEDIRECT_TX: 32

esp32s3-ESPCAN Environment (Built-in CAN)

  • CAN_TX_PIN: 27
  • CAN_RX_PIN: 26
  • CAN_EN_PIN: 23
  • VEDIRECT_RX: 33
  • VEDIRECT_TX: 32

esp32c3-ESPCAN Environment (Built-in CAN)

  • CAN_TX_PIN: 6
  • CAN_RX_PIN: 7
  • CAN_EN_PIN: 5
  • VEDIRECT_RX: 21
  • VEDIRECT_TX: 20

Note: These PINs can be configured through the web interface after flashing. The forbidden GPIO lists for each environment prevent selection of pins that should not be used.

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