Using in Arduino Espressif32 framework

[ttlappalainen]

I have been using your library successfully several months - maybe over year in Espressif32 framework. Most I have been using Espressif32 version 3.5, but now I am going to 6.1. You could have mention that it works also on that framework.

Some succestions:

• Could ESP_LOGE be ESP_LOGD instead? I do not see why e.g., "rx_items == 0" would be an error. It is normal that 1-wire line can be empty.
• In library.json you could have "frameworks": ["espidf","arduino"],
• There is not much changed from version 3 -> 5 or 6. Could there be conditional compiling to keep same source still for older version? e.g.,

    #if ESP_IDF_VERSION_MAJOR>3
    rmt_set_gpio(info->rx_channel, RMT_MODE_RX, gpio_num,false);
    rmt_set_gpio(info->tx_channel, RMT_MODE_TX, gpio_num,false);
    #else
    rmt_set_pin(info->rx_channel, RMT_MODE_RX, gpio_num);
    rmt_set_pin(info->tx_channel, RMT_MODE_TX, gpio_num);
    #endif

I can also make PR, if you agree my improvements.

[DavidAntliff]

Hi @ttlappalainen, thanks for your issue.

Yes, I'd be happy to consider a PR. Your three points seem OK to me, although I don't really want to support IDF v3.x actively. But if you think it would be useful to keep it working for 3.x, then your third point would be OK, if you're able to test it. There may be other things that break with 3.x however, especially as we're moving to the new RMT interface soon.