BLE Component

The esp32_ble component in ESPHome sets up the Bluetooth LE stack on the device so that a BLE Server can run.

# Example configuration

esp32_ble:
  io_capability: keyboard_only

Configuration variables:

• io_capability (Optional, enum): The IO capability of this ESP32, used for securely connecting to other BLE devices. Defaults to none.

  • none - No IO capability (Connections that require PIN code authentication will fail)
  • keyboard_only - Only a keyboard to enter PIN codes (or a fixed PIN code)
  • display_only - Only a display to show PIN codes
  • keyboard_display - A keyboard and a display
  • display_yes_no - A display to show PIN codes and buttons to confirm or deny the connection

• enable_on_boot (Optional, boolean): If enabled, the BLE interface will be enabled on boot. Defaults to true.

• name (Optional, string): The name of the BLE device.

  • Defaults to the hostname of the device.
  • Must be 20 characters or less.
  • Must be 13 characters or less when using name_add_mac_suffix: true - Adding the MAC address as a suffix to the device name.

ble.disable Action

This action turns off the BLE interface on demand.

on_...:
  then:
    - ble.disable:

ble.enable Action

This action turns on the BLE interface on demand.

on_...:
  then:
    - ble.enable:

ble.enabled Condition

This Condition checks if BLE is currently enabled or not.

on_...:
  - if:
      condition: ble.enabled
      then:
        - ble.disable:
      else:
        - ble.enable:

The lambda equivalent for this is id(ble_id).is_active().

See Also

• BLE Server
• Improv via BLE
• API Reference