3.9.0

Changed

• How numbers are sent. Numbers are now formatted to fit the controls.
  • Dial and Table: sent to 6 significant digits, e.g. 19.123456 is sent as 19.1235. The Dash app applies the control's precision, which the user can change in the app. Before, a Dial or Table with precision Off sent the number unchanged.
  • Other controls, such as Knob, Slider and TimeGraph: sent to 5 significant digits, like the DashIO firmware.
  • Very large or small numbers are sent in exponent notation, and values smaller than 1e-11 are sent as 0.
  • Setting a value to None sends NA, so the app shows that the value isn't available.

New

• Batched publishes to the Dash server. DashConnection publishes messages for the same topic sent within batch_delay (default 0.05 seconds) together, so a device updating several controls makes one publish instead of one for each. Alarms are still published straight away. batch_delay=0 turns batching off.
• Numbers in Table rows: a TableRow's columns can be numbers as well as text.

Documentation and examples

• Factory reset: the reset callback receives the app's message, and msg[2] == "FRST" is a request for a factory reset.
• The greenhouse example only sends its button states when they change.

See Documentation.md.