BLE matrix remote

ESPHome
1

OK - I’ve got a chinese remote with 20 buttons. I’ve got the matrix wired in to a C6 Zero. The intention is to use it as a long lasting remote on 2xAAA batteries, so I’ve got diodes connecting the rows to GPIO0 ready to use it for deep sleep. However, in order to also save power, I’m trying to use BLE. There is a C3 Zero acting as a BLE proxy.

The ESPHome code wasn’t causing the remote to be picked up in HA, so AI told me to ditch ESPHome and use Arduino code on the C6 to present BTHome. So far it is working, to a point, the payload is wrong and I’ve run out of free queries on countless AI going round in circles. It comes out as “sound detected” or “distance” and I just can’t shake it.

So the question is… do I really have to use Arduino code to produce the signal, or can I use ESPHome on the C6?

This is the ESPHome code that wasn’t causing the device to be detected in HA…

# -------------------------
# BLE ADVERTISING
# -------------------------
esp32_ble:
  id: ble_dev

esp32_ble_beacon:
  type: iBeacon
  uuid: "12345678-1234-1234-1234-1234567890ab"
  major: 1
  minor: 0
  measured_power: -59

#deep_sleep:
#  id: deep_sleep_1
#  run_duration: 3s
#  sleep_duration: 0s

# -------------------------
# KEYPAD
# -------------------------

matrix_keypad:
  id: remote_keypad
  rows:
    - pin: GPIO18
    - pin: GPIO19
    - pin: GPIO20
    - pin: GPIO21
    - pin: GPIO14
  columns:
    - pin: GPIO1
    - pin: GPIO2
    - pin: GPIO3
    - pin: GPIO22
  has_diodes: true
  keys: "1234567890ABCDEFGHIJ"

# -------------------------
# GLOBAL STATE (for BLE value)
# -------------------------
globals:
  - id: key_value
    type: int
    restore_value: no
    initial_value: '0'

# -------------------------
# BUTTON HANDLING
# -------------------------
binary_sensor:
  - platform: matrix_keypad
    keypad_id: remote_keypad
    name: "Key 1"
    key: "1"
    on_press:
      then:
        - lambda: |-
            id(key_value) = 1;
        - logger.log: "Key 1 pressed"

  - platform: matrix_keypad
    keypad_id: remote_keypad
    name: "Key 2"
    key: "2"
    on_press:
      then:
        - lambda: |-
            id(key_value) = 2;
        - logger.log: "Key 2 pressed"

# Add more keys as needed...

# -------------------------
# UPDATE BLE BEACON VALUE
# -------------------------
interval:
  - interval: 300ms
    then:
      - lambda: |-
          // Encode key into minor value
          id(ble_dev).set_minor(id(key_value));