Filtration Auto Idle

Automatically turn filtration unit to active/idle, based on filter value and pressures. Optional display and warning lights. This script is designed to run inside a filtration unit. It is for filtration units that filter out a single gas. Do not use mixed filters. Pins: - d0 (optional): LED display for remaining filter value (out of 200, 100 for each filter). Colored based on status (see below). - d1 (optional): Warning light. See below for when it is turned on. Status color and warning light: - Blue: Idle, no input gas to process. No warning light. - Green: Active, processing input gas. No warning light. - Orange: Output/waste pressure high. Warning light. - Red: Filter low. Warning light. Config: - See the first few lines. Additional functionalities for programmers: - The remaining filter value, divided by 2, is saved in the filtration unit's Setting. (Because the Setting value could only go up to 100.) This provides a quick access for other programs that may want to read the value. ​