Node-RED Bang-Bang Controller Node

Bang-bang controller (2 step controller, on-off controller, hysteresis controller) is a feedback controller that switches between two states. [1]

Node sends one of two programmed output values on state change.

State changes from low to high when received payload value is greater than Threshold Upper. Similarly, transition from high to low occurs when payload value is less than Threshold Lower.

Primary intended use of this block is a thermostat.