Keeloq

[RoganDawes]

What does this implement/fix?

This adds an implementation of a decoder for the Keeloq protocol

Types of changes

• [ ] Bugfix (non-breaking change which fixes an issue)
• [X] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] Other

Related issue or feature (if applicable): fixes

Pull request in esphome-docs with documentation (if applicable): esphome/esphome-docs#<esphome-docs PR number goes here>

Test Environment

• [ ] ESP32
• [ ] ESP32 IDF
• [ ] ESP8266
• [X] STM32 (Only hardware I have that has a radio at 403.92MHz)

NB: This decoder is carrier frequency independent, and should work just fine at 433.92MHz too!

Example entry for config.yaml:

# Example config.yaml
keeloq_normal_crypter:
  id: keeloq_crypter
  # e.g. keeloq_manufacturer_key: 0x0123456789abcdef
  manufacturer_key: !secret keeloq_manufacturer_key

text_sensor:
  - platform: template
    name: "Keeloq Remote"
    id: keeloq_remote

remote_receiver:
  id: receiver
  pin:
    number: PA_3
    mode: INPUT
  buffer_size: 200
  tolerance: 30%
#  dump: keeloq
  on_keeloq:
    then:
      - lambda: |-
          char buff[20];
          if (id(keeloq_crypter).decrypt(x)) {
            snprintf(buff, sizeof(buff), "%07x:%1x:%04X:%c:%c",
                     x.serial, x.button, x.sync, x.low ? 'L' : 'N', x.repeat ? 'R' : 'F');
          } else {
            snprintf(buff, sizeof(buff), "%07x:%1x::%c:%c",
                     x.serial, x.button, x.low ? 'L' : 'N', x.repeat ? 'R' : 'F');
          }
          std::string buffAsStdStr = buff;
          id(keeloq_remote).publish_state(buff);

Checklist:

• [X] The code change is tested and works locally.
• [ ] Tests have been added to verify that the new code works (under tests/ folder).

If user exposed functionality or configuration variables are added/changed:

• [ ] Documentation added/updated in esphome-docs.

[probot-esphome[bot]]

Hey there @RoganDawes, Thanks for submitting this pull request! Can you add yourself as a codeowner for this integration? This way we can notify you if a bug report for this integration is reported. In __init__.py of the integration, please add:

CODEOWNERS = ["@RoganDawes"]

And run script/build_codeowners.py

_{^{(message by NeedsCodeownersLabel)}}

[github-actions[bot]]

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