MyPart: Personal, Portable,_Accurate, Airborne Particle Counting
summary
Claims a working, <$50 build particle counter that distinguishes particle sizes and correlates well with a calibrated MET 1 across ~20 real-world indoor/outdoor locations. Design uses a laser, high‑gain photodiode amplifier, RFduino Bluetooth MCU, 3D‑printed flow channel, and a simple threshold pulse counting algorithm; final gadget is about 50×40×25 mm, uses a 400 mAh battery lasting roughly a day of sampling, and shows good correlation in ambient tests. A six‑participant user study explores wearability and form‑factor adaptations; all design files are released open source.
AI-written summary · about
chapters (15)
- 0:00Introduction to MyPart
- 1:54Current air quality sensors
- 3:23MyPart design goals
- 5:11Optical sensing principles
- 6:53Mechanical design details
- 7:35Electronics and power
- 8:39Sensor accuracy validation
- 9:25User interaction design
- 10:52User study setup
- 12:59Custom form factor needs
- 14:24Open source and future work
- 15:28Q&A: Sensitivity correlation
- 16:31Q&A: Sensitivity analysis
- 16:51Q&A: Open source and battery life
- 18:18Q&A: Data sharing
related talks
22mExpEYES: Pocket Science Lab - Developing Open Source Science Experiments
19mDiana Wildschut - Measure Your City
02h 16mOffice Hours
13mOpen Source Technologies for Forest Biodiversity Monitoring
16mKeynote: Open Source as Endurance Infrastructure for Environmental Justice
23mPavlov’s Dog & Foucault’s Panopticon: Hacking My Anxiety With Open-Source Technology
27mGet into your own free LibreSilicon
05mRuss Nelson interviewed at OSCON 2010