Please add support for I2C interfaced RTC (real time clock) like PCF85263

[twbrkfd1]

The addition of a driver for an I2C interfaced RTC to the system would be great. Some suggested devices are preferably the PCF85263, MCP7941x, etc. A reliable battery backed clock which has the actual time and date is a nice addon!

[mikeller]

@twbrkfd1: As an alternative to what you are proposing there already is a way to automatically set the real time clock in Betaflight: If you are a user of OpenTX with a SmartAudio, FPort, or Crossfire RX link, then if you run the latest lua scripts on your TX, they will automatically sync the real time clock from OpenTX to Betaflight when there is an RC link between the two.