Sensor Saturday – On-device Magnetometer Calibration (video). The Adafruit CLUE board comes with a magnetometer & magnetometers need calibration before use. Sometimes a program is used to help calibrate but since there’s a screen, we can calibrate on-board using the display. Before calibration, the X/Y/Z data is shown as red, green and blue balls of datapoints that are not centered. Once you see enough data, press A to calibrate. Then the X/Y/Z data will be calibrated-centered!
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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