ESP32-S3 Dev Board
A flexible base for connected builds
MAKHEX PROJECT / 07 • SENSORS / AMBIENT
Indoor VOC Explorer✳
Chart relative VOC sensor trends with ambient context.
IntermediateWeekend buildSensors
SEE THE PARTS LIST ↓ DOWNLOAD BOM CSV ↓Concept sketch · proposed build, not yet bench-verified
01 / BILL OF MATERIALS
What goes in.
Mapped component candidates. Compatibility and suppliers await validation.
COMPONENTROLEQTY
ESP32-S3 Dev Board ↗Controller01
SGP40 VOC Sensor ↗VOC sensor01
BME280 Environment Sensor ↗Compensation01
USB-C Prototyping Kit ↗Bench supply01
4 UNIQUE PART TYPES4 ITEMS
YOUR WORKBENCH / LOCAL CHECKLIST
Gather your parts.
Tick parts you already have on hand. Your progress stays in this browser—no account needed.
These are research-stage component candidates, not a verified kit. Checking a part does not establish electrical compatibility, supplier stock, or purchase eligibility.
02 / THE APPROACH
Build sequence.
- 01
Verify each sensor on its own.
- 02
Supply humidity and temperature compensation.
- 03
Log timestamped data with warm-up status.
- 04
Render relative trend visualizations.
- 05
Explain error and sensor baseline behavior.
⚑ ENGINEERING NOTE
Not a calibrated CO₂, particulate or life-safety monitor.
Concept-stage plan; bench validation and firmware QA pending.COMPATIBLE CANDIDATES
FULL CATALOG ↗The building blocks.
SGP40 VOC Sensor
Explore indoor VOC trends
BME280 Environment Sensor
Temperature, humidity, pressure
USB-C Prototyping Kit
Start with repeatable bench power
COMMUNITY / BUILD LOG
JOIN THIS DISCUSSION ↗Build it. Break it. Share it.
Post wiring corrections, firmware fixes and what you learned building Indoor VOC Explorer.
Public GitHub Discussions is open. Page-specific embedded comments appear after the Giscus app is enabled for this repository.