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Hi, I'm David! 👋

I'm a software engineer with a background in chemical engineering and aerosol chemisty and physics. I'm currently the CEO of QuantAQ - we build low-cost, professional-grade air quality sensors to supplement existing regulatory monitoring networks.

whoami

  • I'm originally from the Bay Area (Napa, CA) and currently reside in Cambridge, MA
  • I completed undergrad degrees in Chemical Physics (Hendrix College, AR) and Chemical Engineering (WashU, MO), and a PhD in Atmospheric Chemistry and Physics (MIT, MA)
  • I love baseball (Go Giants!)

🏡 Location

I currently reside in Cambridge, MA and can often be found in one of the many coffee shops around (Broadsheet and Gracenote are favorites).

Previously, I've lived in:

  • Napa, CA
  • Conway, AR
  • Thousand Oaks, CA
  • St. Louis, MO
  • Ann Arbor, MI
  • Cambridge/Somerville, MA

I also spent a fairly significant chunk of time in India (mostly Delhi, Mumbai) during my PhD, though in 2-4 week chunks.

📱 Contact

It is easiest to reach me via email at the address listed on my profile. For air quality-related inquiries, you can also reach out to QuantAQ directly at [email protected].

code

I write a lot of software. I mostly work in Python and C++ and spend most of my time these days across a number of various areas including front-end, back-end, architecture, devops, and embedded software. In addition to writing code, I spend a good chunk of time designing the electrical and mechanical components that comprise QuantAQ's product line.

David H Hagan's Projects

2btech-lv icon 2btech-lv

LabVIEW drivers for the 2BTech Ozone Analyzer Model 202

act icon act

Python scripts for data analysis related to the Atmospheric Chemistry and Technology Lab

adafruit_ads1x15 icon adafruit_ads1x15

Driver for TI's ADS1015: 12-bit Differential or Single-Ended ADC with PGA and Comparator

adcpi icon adcpi

Python library for the ADC Pi Raspberry Pi expansion board from ABElectronics UK

atmos-cal-box icon atmos-cal-box

Hardware design and firmware for a Particle Photon based calibration box for various flow

atmospy icon atmospy

visualization and analysis tools for air quality data in python

brechtel-mcpc-1710 icon brechtel-mcpc-1710

Python library using pyserial to connect to and read data from the Brechtel MCPC.

chem-data icon chem-data

Thermodynamic chemistry data available in multiple formats: currently hosted at http://chem-data.davidhagan.me

dac121c08x icon dac121c08x

C++ library for the Texas Instruments DAC121C085 12-bit DAC IC.

dash-mcpc icon dash-mcpc

Dash application to operate the Brechtel MCPC

dhhagan.github.io icon dhhagan.github.io

Github Pages template for academic personal websites, forked from mmistakes/minimal-mistakes

docs icon docs

Documentation for Particle

electronsample icon electronsample

Particle Electron sample code for fault tolerance and problem debugging

emfact-2 icon emfact-2

EMFACT-2.0 software developed for the 2015 MIT Clean Earth Hackathon

hih6130 icon hih6130

Arduino library for the Honeywell HIH6130 Relative Humidity and Temperature Sensor

hih6130-lv icon hih6130-lv

LabVIEW Drivers for the HIH6130 Relative Humidity and Temperature Sensor by Honeywell

india-map icon india-map

Map of India using CartoDB's javascript framework

kroll-lab-rhtp icon kroll-lab-rhtp

Code for Particle Photon-based measurement of RHT and Pressure for the Lab

licor-480a icon licor-480a

Python script to log data continuously from a Licor 480A

nmf-python icon nmf-python

Python toolbox for nonnegative matrix factorization

nmf-toolkit icon nmf-toolkit

A quick and easy-to-use toolkit for performing NMF analysis on Air Sensor data.

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