Although miles of suburban sprawl surrounded us, complex environmental processes were constantly occurring all around us. They were just a little difficult to see. I decided to shift the focus of the course from simply “What is the environment?” to, “How do we study our environment?” Using parts primarily from Adafruit Industries, I made an environmental sensor. Temperature, humidity, light level, and ozone concentration data were collected using the DHT22 sensor, a photo cell, and Futurlec’s MQ131 gas sensor. A Boarduino and Xbee got our sensors talking to our school server and a 6V solar panel powered the beast. Everything fit nicely into an Otterbox and some Sugru provided stability and weatherproofing.
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.