DSC-BRAIN USER GUIDE · SETTINGS REFERENCE
Settings › Climate
Fan airflow corrections, targets (4×8, 2×4), stage presets, control strategy, priority tent, pressure regime, humidifier routing, dry and cure alert bands, and the advanced hub rows (hysteresis, min-off, ladder waits, de-strat, mister).
● verified for 9.0.0 · firmware train 8.2.0.0
● last verified 2026-09-17 · mirrored 2026-09-15
What the room lung is asked to do. Per-fan airflow corrections here; live targets and modes stay on the Climate desk.
Most rows on this page are Hub scope: the brain holds the desired value and applies it to the hub, showing SYNCED / PENDING / HELD / HUB DIFFERS.
Fans
Fan airflow correction per fan (4×8 intake, 2×4 intake, room exhaust, outside exhaust): a scale applied to the fan's nameplate or learned CFM so the air path reads true. Set it from an anemometer reading when you cannot run a full Learning session. Brain scope.
Targets
- Temperature, RH and VPD targets for the 4×8 (
target_temp,rh_target_min/max,vpd_target_min/max) and the 2×4 (clone_target_temp,clone_rh_min/max,clone_vpd_min/max). The desks edit the same rows; this page is the reference with defaults and change history. When the 2×4 is in Follow plants mode its rows are brain-owned and read-only here. - VPD in-band target (on the Control card, default 18 h): hours per day the hub aims to keep VPD inside the band before it counts the day as missed; feeds the VPD chart's time-in-zone.
Stage presets
The stage rail: Germination through Final 48-72h Flowering, Dry Mode, and the two cooler dry rows Balanced dry (17 °C) and Slow dry (15.5 °C) that a Dry zone's dry strategy picks. Each row holds temperature, VPD min/max, RH min/max and light hours; light hours are labels, the hub's photoperiod rail decides them. Reset all to firmware table undoes your edits. Apply now asks first and lists what it will write: the 4×8's temperature, VPD and RH targets and its temperature band (the setpoint ±1.5 °C, which the temperature alert reads). The Brain owns stage presets switch decides who writes targets on a stage change: on (this kit, since 16 Sep 2026) and with the brain connected, the brain writes this table and the ±1.5 °C band; off, or with no brain, the hub's baked table writes them — the same numbers, with a band of setpoint to setpoint + 3 °C.
Control
- Control strategy: the hub's ladder strategy select.
- Priority tent: which tent wins the shared exhaust.
- Humidifier intake routing: whether humidifier output rides the intake path.
- Stage, climate mode and manual holds (on the Targets card): a link to the Climate desk. The active stage, the 2×4 climate mode and the manual overrides are live controls there, not settings.
Pressure
Two hub rows, 4×8 pressure · intake budget (default 70 %) and 2×4 pressure · intake scale (default 100 %), and What this asks for, which reads each tent as negative (below 97 %), neutral or positive (above 103 %); the 2×4 is an estimate. Positive pressure bypasses the carbon filter. The brain reports a pressure target and net flow per tent on Climate.
Dry and cure (Brain scope): watched, never controlled. A zone flipped to Dry shows its dry run on the Climate desk; a zone flipped to Cure (a wine fridge with a Zigbee puck in each jar) shows every jar on its own.
| Row | Default | What it does |
|---|---|---|
| Grow alert sensitivity | Off | Off, Relaxed, Moderate or Strict: sets the dry room RH alert together with the runoff alerts on Settings › Root. A hand edit reads Custom. |
| Dry room RH alert | empty (never alert) | Alert when a drying zone's air is at or above this RH. Empty shows the risk on the dry run card and nothing alerts. |
| Cure temperature low / high | 18 °C / 19 °C | The band the cure fridge holds. The kit watches it; it does not control it. |
| Cure temperature tolerance | 0.5 °C | How far outside the band the fridge may drift (a compressor cycles) before it alerts. |
| Jar band low / high | 58 % / 62 % | The jar RH band; above the high edge a jar wants a burp today. |
| Jar burp-now RH | 65 % | At or above this a jar wants a burp now and raises the jar RH alert. |
| Jar too dry below | 55 % | A jar below this RH is flagged too dry. |
Advanced (Show advanced rows)
| Row | What it does |
|---|---|
| 2×4 humidifier hysteresis | How far RH may overshoot before the clone humidifier releases. |
| Min off-times (heater, humidifier, clone) | Minimum rest per appliance; protects compressors and stops hunting. |
| Ladder waits | How long the ladder waits at each rung before escalating. Learning Phase B can propose these. |
| De-stratification pulse | A switch for the periodic recirculation burst, with De-strat pulse period, length and level. |
| Mister hours (on hold) | The clone mister schedule. Hardware on hold; the row stays honest. |
Changing an advanced row changes how the hub keeps the room safe. Change one at a time and watch the ladder for a day.
DSC-Brain user guide · Settings › Climate · this page is edited on the site; the Notion original was retired after the mirror