Post Occupancy Device Schematic

O

obo348

Please create a schematic for a post occupancy device for architectural purposes. Using sensors that measure luminance, CO2, temperature and humidity, human movement, and noise. I want to use phython and place the entire thing in a case that exposes each sensor.

flux

I’ll assess the existing ESP32 environmental sensor project, map it to your post-occupancy requirements, and then determine what schematic changes are needed for luminance, CO2, temperature/humidity, motion, and noise sensing with Python-capable firmware. I’ll first review the current design and relevant design guidance, then I’ll either update the schematic or report if project permissions block edits.

flux

I found the project is view-only for your account, so I can’t modify the schematic directly here. I’ll still assemble a concrete schematic architecture and component set you can copy into an editable project or ask the owner to grant edit access.

flux

I can’t create the schematic in this project because your account currently has view-only access; Flux blocked the edit attempt.
Recommended schematic architecture:
  • MCU / Python-capable control: ESP32-WROOM-32E running MicroPython or CircuitPython-style firmware
  • Luminance: VEML7700 or BH1750, I2C, 3.3 V
  • CO2 + temperature + humidity: Sensirion SCD41, I2C, 3.3 V
  • Motion / occupancy: PIR module with 3.3 V digital output; if using a raw PIR element, it needs analog front-end conditioning
  • Noise: INMP441 or ICS-43434 I2S MEMS microphone, 3.3 V
  • Shared bus: I2C for light + CO2/temp/humidity sensors with one pair of 4.7 kΩ pull-ups to 3.3 V
  • Enclosure requirement: optical window for luminance, vented airflow path for CO2/temp/humidity, Fresnel/dome opening for PIR, acoustic port for microphone, and ESP32 antenna kept near a non-metallic edge
To proceed, ask the project owner jr98 to grant you edit access, or duplicate/fork the project into your own workspace. Once editable, I can add the sensors, wire the schematic, add decoupling/pull-ups, and create a Python firmware starter file.
Choose exact parts
Create wiring plan
Draft MicroPython code
Plan enclosure layout
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