Preliminary demonstration of results from a homemade GPS Datalogger w/ environmental sensors.
Arduino Leonardo, Adafruit Ultimate GPS Shield, a few Adafruit Trinkets, a CO sensor, microphone, dust sensor, and a ton of coding….
I attached the sensor box to the roof of my car w/ the GPS antenna, put an SD card in the logger, and drove around downtown Chicago for about 80 minutes collecting data.
I combined those results with real-time traffic congestion data downloaded from data.cityofchicago.org inside ArcGIS, tweaked the presentation with ArcScene, and came up with this short video….
With Arduino UNO & this setup, I can now:
get sensor values from the Trinkets and GPS shield
log the sensor data to the SD card
log the GPS data to the SD card
not do all of the above within the same sketch
Pretty sure I’m running out of SRAM. If I’m correct, I’m about .5k short of what I need.
So….on my way to buy an overpriced Leonardo (from local store) to swap in.
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.