This FeatherWing was designed to monitor HVAC system parameters. It can measure airflow, humidity, and temperature, and it has terminal block connections that can be used for analog inputs or as outputs. The data can be displayed on an integrated e-ink display. We have built and tested units, and they are working well. Files and code to follow.
This is the Feather I created to run the Feather M4 Express version of my 3D Printed TurtlePlotBot. The Feather has a MCP23008 i2c 8 bit port expander connected to a ULN2803A darlington transistor array to drive a pair of 28byj-48 unipolar stepper motors. This allows me to use i2c and 1 other pin to run the TurtlePlotBot using Turtle Graphics commands in CircuitPython.
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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, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, 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.
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