BLE Retrieve device info & Retrieve settings

[jaqkar]

I see Retrieve device info & Retrieve settings with PRESS next to them over BLE connection. Unclear what these two are doing or where to see the info. Any insights will be appreciated.

[syssi]

These are button entities. If you send the payload PRESS to the command topic the device info frame or settings frame gets requsted. The decoder of the device info frame just prints some messages into the log:

  ESP_LOGI(TAG, "  Vendor ID: %s", std::string(data.begin() + 6, data.begin() + 6 + 16).c_str());
  ESP_LOGI(TAG, "  Hardware version: %s", std::string(data.begin() + 22, data.begin() + 22 + 8).c_str());
  ESP_LOGI(TAG, "  Software version: %s", std::string(data.begin() + 30, data.begin() + 30 + 8).c_str());
  ESP_LOGI(TAG, "  Uptime: %d s", jk_get_32bit(38));
  ESP_LOGI(TAG, "  Power on count: %d", jk_get_32bit(42));
  ESP_LOGI(TAG, "  Device name: %s", std::string(data.begin() + 46, data.begin() + 46 + 16).c_str());
  ESP_LOGI(TAG, "  Device passcode: %s", std::string(data.begin() + 62, data.begin() + 62 + 16).c_str());
  ESP_LOGI(TAG, "  Manufacturing date: %s", std::string(data.begin() + 78, data.begin() + 78 + 8).c_str());
  ESP_LOGI(TAG, "  Serial number: %s", std::string(data.begin() + 86, data.begin() + 86 + 11).c_str());
  ESP_LOGI(TAG, "  Passcode: %s", std::string(data.begin() + 97, data.begin() + 97 + 5).c_str());
  ESP_LOGI(TAG, "  User data: %s", std::string(data.begin() + 102, data.begin() + 102 + 16).c_str());
  ESP_LOGI(TAG, "  Setup passcode: %s", std::string(data.begin() + 118, data.begin() + 118 + 16).c_str());

If you retrieve the settings frame all setting entities (in general number entities) gets updated. I haven't implemented a periodic update interval here because the BMS beeps on every received command. If you use the Android app the settings frame is requested (+ the BMS beeps once) as soon as you go to the settings view.

At the moment, if you change a config setting using one of the number entities you should retrieve the settings frame once manually to make sure all settings entities represent the current config/state of the BMS.