April 04, 2026

Generated lab notebook from daily_summary, plan_journal, and setpoint audit data. It is intentionally chronological and may include in-progress cycles before validation.

☀️ Midday Cycle (12:10 PM) — iris-20260404-1200

Status

validated

Outcome score

1/10

Changed parameters

mister_engage_kpa, mister_pulse_gap_s, vpd_high, temp_low, mister_all_kpa

Result: ESP32 firmware crashed Saturday afternoon (1:30-5:30 PM). State machine failure: fog+fans at 48F, no misters at VPD 3.61. Plan hypothesis (earlier aggressive deploy) never tested. Firmware was fixed and ESP32 rebooted Sunday morning. 6.93h VPD stress, 0h heat stress.

Reflection

Validating previous cycle: iris-20260403-1100

Previous hypothesis: New lesson: cold-dry days dont produce VPD stress because temp drives VPD more than RH. Fri proved this (0h stress at 22% RH but 49F). Sat will test the boundary: outdoor crosses 60F by noon with 12% RH — that is when VPD stress starts. Deploy aggressive misting only once outdoor >60F. Result: ESP32 firmware crashed Saturday afternoon (1:30-5:30 PM). State machine failure: fog+fans at 48F, no misters at VPD 3.61. Plan hypothesis (earlier aggressive deploy) never tested. Firmware was fixed and ESP32 rebooted Sunday morning. 6.93h VPD stress, 0h heat stress. Score: 1/10

New finding: ESP32 firmware crash invalidated plan entirely. State machine bugs can override all planning. Firmware stability is prerequisite to plan effectiveness. → Added to Lessons Learned

Hypothesis

Conditions: Noon Sat: south 87F/VPD 2.32, avg 78.8F/47% RH. Outdoor 54F/16% RH rising to 64F peak. Sunday extreme: 35F dawn, 67F/12% RH peak (outdoor VPD 1.94 — highest of window). Monday overcast 100% clouds with rain, 65F/23% RH, moderate. Testing: Sunday 11AM aggressive deployment (engage=1.3, gap=30s) vs previous noon deployment. Measure: Sunday VPD stress hours and compare to Sat (similar dry but delayed deploy). If 11AM catches the ramp, stress should be 1-2h less than equivalent noon deployment. Expected outcome: Sat VPD stress <4h (noon plan deployed late). Sun VPD stress <3h (early deploy). Mon VPD stress <1h (overcast). Total 3-day water <400 gal.

Setpoints

Saturday April 04

Primary crop-band changes:

12:00high 82; low 60; vpd_h 1.6; hyst 0.3

Standard.

17:00high 82; low 58; vpd_h 1.8; hyst 0.3

Standard.

20:00high 82; low 58; vpd_h 2; hyst 0.3

Standard.

Tactical tunable changes:

12:00d_cool 3; engage 1.3; all 1.6; pulse 60; gap 30; wt 1.5

Standard.

17:00d_cool 3; engage 1.4; all 1.8; pulse 60; gap 40; wt 1.5

Standard.

20:00d_cool 3; engage 1.6; all 2; pulse 60; gap 45; wt 1.5

Standard.

Sunday April 05

Primary crop-band changes:

05:00high 82; low 58; vpd_h 2; hyst 0.3

Standard.

09:00high 82; low 60; vpd_h 1.8; hyst 0.3

Standard.

11:00high 82; low 60; vpd_h 1.6; hyst 0.3

Standard.

17:00high 82; low 58; vpd_h 1.6; hyst 0.3

Standard.

20:00high 82; low 58; vpd_h 2; hyst 0.3

Standard.

Tactical tunable changes:

05:00d_cool 3; engage 1.6; all 2; pulse 60; gap 45; wt 1.5

Standard.

09:00d_cool 3; engage 1.4; all 1.8; pulse 60; gap 40; wt 1.5

Standard.

11:00d_cool 3; engage 1.3; all 1.6; pulse 60; gap 30; wt 1.5

Standard.

17:00d_cool 3; engage 1.3; all 1.6; pulse 60; gap 35; wt 1.5

Standard.

20:00d_cool 3; engage 1.6; all 2; pulse 60; gap 45; wt 1.5

Standard.

Monday April 06

Primary crop-band changes:

05:00high 82; low 58; vpd_h 2; hyst 0.3

Standard.

10:00high 82; low 58; vpd_h 1.8; hyst 0.3

Standard.

13:00high 82; low 58; vpd_h 1.8; hyst 0.3

Standard.

19:00high 82; low 58; vpd_h 2; hyst 0.3

Standard.

Tactical tunable changes:

05:00d_cool 3; engage 1.6; all 2; pulse 60; gap 45; wt 1.5

Standard.

10:00d_cool 3; engage 1.5; all 1.8; pulse 60; gap 40; wt 1.5

Standard.

13:00d_cool 3; engage 1.4; all 1.8; pulse 60; gap 35; wt 1.5

Standard.

19:00d_cool 3; engage 1.6; all 2; pulse 60; gap 45; wt 1.5

Standard.


End-of-Day Summary

Climate

Temperature

54.7–87.3°F; avg 66.7°F

VPD

0.44–3.68 kPa; avg 1.26 kPa

Relative humidity

16.3–70.6%

Stress Hours

  • Heat stress (>85°F): 7.6h
  • VPD stress (>2.0 kPa): 13.8h
  • Cold stress (<55°F): 13.0h

Economics

Electric

USD 0.22

Gas

USD 0.87

Water

USD 0.130

Total

USD 1.22

Equipment Runtimes

Fan 1242 min

Primary exhaust runtime.

Fan 2261 min

Secondary exhaust runtime.

Vent292 min

Intake vent runtime.

Fog39 min

Fogger runtime.

Heat 1 electric84 min

Electric heater runtime.

Heat 2 gas84 min

Gas heater runtime.

Grow lights578 min

Supplemental lighting runtime.

Mister south0.00h

South mister runtime.

Mister west0.00h

West mister runtime.

Mister center0.00h

Center mister runtime.

Water

  • Total: 26 gal
  • Mister: 0 gal

Hourly Pattern

12:0079.9°F; VPD 1.65 kPa

RH 53.2%.

13:0081.1°F; VPD 1.85 kPa

RH 49.6%.

14:0081.2°F; VPD 1.96 kPa

RH 46.6%.

15:0081.2°F; VPD 1.98 kPa

RH 45.8%.

16:0080.1°F; VPD 1.59 kPa

RH 54.6%.

17:0076.1°F; VPD 1.21 kPa

RH 61.1%.

18:0063.2°F; VPD 1.17 kPa

RH 40.3%.

19:0057.0°F; VPD 0.96 kPa

RH 39.9%.

20:0057.1°F; VPD 0.93 kPa

RH 41.4%.

21:0056.2°F; VPD 0.57 kPa

RH 63.2%.

22:0056.2°F; VPD 0.57 kPa

RH 62.8%.

23:0056.0°F; VPD 0.83 kPa

RH 45.6%.

00:0056.6°F; VPD 0.63 kPa

RH 60.1%.

01:0056.6°F; VPD 0.55 kPa

RH 64.7%.

02:0056.8°F; VPD 0.54 kPa

RH 66.0%.

03:0056.4°F; VPD 0.51 kPa

RH 67.1%.

04:0056.6°F; VPD 0.51 kPa

RH 67.6%.

05:0056.7°F; VPD 0.52 kPa

RH 66.9%.

06:0056.7°F; VPD 0.53 kPa

RH 66.2%.

07:0056.7°F; VPD 0.54 kPa

RH 65.9%.

08:0056.8°F; VPD 0.52 kPa

RH 66.8%.

09:0057.7°F; VPD 0.54 kPa

RH 66.8%.

10:0069.2°F; VPD 1.05 kPa

RH 58.7%.

11:0078.6°F; VPD 1.72 kPa

RH 50.5%.

7-Day Stress Context

2026-03-29Heat 15.0h; VPD high 15.2h

Cold stress 5.1h.

2026-03-30Heat 14.5h; VPD high 10.5h

Cold stress 3.9h.

2026-03-31Heat 3.0h; VPD high 1.7h

Cold stress 12.1h.

2026-04-01Heat 0.5h; VPD high 2.1h

Cold stress 19.5h.

2026-04-02Heat 10.8h; VPD high 8.9h

Cold stress 11.7h.

2026-04-03Heat 6.2h; VPD high 13.2h

Cold stress 16.5h.

2026-04-04Heat 7.6h; VPD high 13.8h

Cold stress 13.0h.