Arduino > Circuit Playground Express
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If you unplug your board and then plug it back in again to your computer, it may not run the program again automatically. If it instead shows all green NeoPixels, just press the reset button and your program will start.
Open the Library Manager:
Search for the Circuit Playground Library and install it:
http://adafruit.github.io/Adafruit_CircuitPlayground/html/class_adafruit___circuit_playground.html
// Circuit Playground Serial Receive Example // Send serial data (values 0,1,2, or 3) to the Circuit Playground to play with the lights // if the data is 0, close the lights // if the data is 1, set the lights to maximum red // if the data is 2, set the lights to maximum greed // if the data is 3, set the lights to maximum blue // Author: Thomas O Fredericks // License: MIT License (https://opensource.org/licenses/MIT) // Circuit Playground Library Documentation // http://adafruit.github.io/Adafruit_CircuitPlayground/html/class_adafruit___circuit_playground.html #include <Adafruit_CircuitPlayground.h> void setup() { // Initialize Circuit Playground library. CircuitPlayground.begin(); // Initialize serial port Serial.begin(115200); } void loop() { // As long as there is serial data, read it and react to certains values while ( Serial.available() ) { // Serial.available() returns 1 if there is received data int data = Serial.read(); // Serial.read() returns the new data if ( data == 0 ) { // if the data is 0, close the lights CircuitPlayground.clearPixels(); } else if ( data == 1 ) { // if the data is 1, set the lights to maximum red for ( int i = 0; i < 8; i++) CircuitPlayground.setPixelColor(i, 255, 0, 0); } else if ( data == 2 ) { // if the data is 2, set the lights to maximum greed for ( int i = 0; i < 8; i++) CircuitPlayground.setPixelColor(i, 0, 255, 0); } else if ( data == 3 ) { // if the data is 3, set the lights to maximum blue for ( int i = 0; i < 8; i++) CircuitPlayground.setPixelColor(i, 0, 0, 255); } // Echo the input for debugging Serial.print(data); } }
<pre><code> ----------begin_max5_patcher---------- 1054.3ocyX00aaaCE8YGf7e3N8TKfqAI0mtuUrmFvxxvVA1CqCELRLMrShTP jJ1AE6+93GRNpoVxxEFtFHNDjhT264xCu2C0Wt9pEA2I2xTAvag+FVr3KlQV 3FyNxh9AVDTQ2lWRUtIFjKqpXBcvxtGpYa0tG7mLMnefA1IzJ34TMWJ.UMiU .uppUogJpN+A2b7ipLqfKf20TzxExWu6UV2vTFS3dAerjKX4xVgyHj9ovKb1 Td2meS1yqy994hO8wFVt1iJBhrBsDRQqhWBgYI1NDzJD7O8KRzVwEkLsCc3A iJa08Cibi9eWeks0zrb1QqJlRQ+D6aiV2QaK.LNlfPGCt8Nk9oZlGeAAOijA wjzohIXB94XR5ZWHgLZHgr+PB96NjLJA5udfIfmjsFdgn.nfx31kLCCQCvqt io2vLOGATyCIwwuFzRGW5CAJVCmV9g.v.cCJWBbCuRYeM59IUvdjma4lBSTU a3dciWKazq14JeULO7vaKg6IzGOIcbsKzSRbrRRZpsIJ87wGGM3+K27629Gu +c+16+of8.pno.UH1crJB4Zvwnu8Pl0L4xRYieEnUqWmfRyhLKEkPVGtDbKx 8O7Evoyvfi7.WT3ja6wwVjEF5ZHqsG7NmG4FEmjiFm34fSD9BCm3iEmgqmAN IIYWX3Dcz3LaN3LL4GCNGMakuBg4mwWY7GYv8MxJaICWk.WV88kFKDMYcQbn Elw3TeIwzysXgwkVooMZCpJKg6kMP21uC70NUVrGYMOAXDTwKK4JSEJQgZj5 Z6SCEYRACDRWl8nAUsBCu.xS6BI3il0SRljGjRF.2nnKFAR4kREyqwtsowpt wRzgM85lnMFgNRAC1v0OXDAsBtUT9DXGgVWW1KIOmJ.ZdtIl50h+7YFfZ9Cz 7J1gzDMHXhimi3.R1OHEOixcbQyik4fmTIDIE4Aq+DR5ECy41ZCEwtYKnUFw uesp2gviLm7.dgdjLxEysobj2e91aVez6mSpmAGkM.vIWN6m+J2bcZpI22fC uJ6cos6w2P2ZuniRZu7z8tLCERPH0v+Jja1QC.486tBjaRanCL0AKYjLiRoj PmhgKoBFM7AfbthjlBpo8ZirPjbtYHB1FiGtOARVdw3.0EEF8PwgwamHoClh ajcVxK.re0NR2K+bTNWv9fWDFTx1l7d3z8MOfAtQASo4BWEuASB6mz3w6YaN 6M9ls85mTEunVZh8cfjjDYOfDgcZLxh204z3g3SlGFRF3gtNmDOzdKqSjG18 kU7dnqyowCyNcdXxPOL4j4gmWZuU574zdVAWmU6g+9sWWVLiVay0wTcqvaJS V6O6+5WYK884BeejueC6Qd+R7prCnMlbuZSh21FmGFrMoS8YPkrf0HZ48EOr f0ZZWgAawcUM0CKWAjquxLg+G.GPcMC -----------end_max5_patcher----------- </code></pre>
// Circuit Playground Accelerometer Serial Example // Tilt Circuit Playground left/right and up/down // Sends data through the serial connection as an ASCII message // Author: Thomas O Fredericks based on an inital example by Tony DiCola // License: MIT License (https://opensource.org/licenses/MIT) // Circuit Playground Library Documentation // http://adafruit.github.io/Adafruit_CircuitPlayground/html/class_adafruit___circuit_playground.html #include <Adafruit_CircuitPlayground.h> void setup() { // Initialize Circuit Playground library. CircuitPlayground.begin(); // Initialize serial port Serial.begin(115200); } void loop() { // Grab x, y acceleration values (in m/s^2). float x = CircuitPlayground.motionX(); float y = CircuitPlayground.motionY(); // Form a single line out of ASCII messages // Serial.print("") appends an ASCII message to the current line // Serial.println() send the line ending indicating the end of the message Serial.print("acc"); Serial.print(" "); Serial.print(x); Serial.print(" "); Serial.print(y); Serial.println(); // Slow down the board so it does not send messages too fast delay(50); }
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